diff --git a/packages/bolt-connection/src/bolt/bolt-protocol-v1.js b/packages/bolt-connection/src/bolt/bolt-protocol-v1.js
index d04b33b4e..41db11658 100644
--- a/packages/bolt-connection/src/bolt/bolt-protocol-v1.js
+++ b/packages/bolt-connection/src/bolt/bolt-protocol-v1.js
@@ -100,7 +100,7 @@ export default class BoltProtocol {
   }
 
   /**
-   * Returns the numerical version identifier for this protocol
+   * Returns the stringified version identifier for this protocol
    */
   get version () {
     return BOLT_PROTOCOL_V1
diff --git a/packages/bolt-connection/src/bolt/create.js b/packages/bolt-connection/src/bolt/create.js
index 18891e197..5974e2a29 100644
--- a/packages/bolt-connection/src/bolt/create.js
+++ b/packages/bolt-connection/src/bolt/create.js
@@ -15,7 +15,7 @@
  * limitations under the License.
  */
 
-import { newError } from 'neo4j-driver-core'
+import { newError, ProtocolVersion } from 'neo4j-driver-core'
 import BoltProtocolV1 from './bolt-protocol-v1'
 import BoltProtocolV2 from './bolt-protocol-v2'
 import BoltProtocolV3 from './bolt-protocol-v3'
@@ -112,8 +112,11 @@ function createProtocol (
   onProtocolError,
   log
 ) {
-  switch (version) {
-    case 1:
+  if (!(version instanceof ProtocolVersion) || version === undefined || version === null) {
+    throw newError('Unknown Bolt protocol version: ' + version)
+  }
+  switch (version.toString()) {
+    case '1.0':
       return new BoltProtocolV1(
         server,
         chunker,
@@ -122,7 +125,7 @@ function createProtocol (
         log,
         onProtocolError
       )
-    case 2:
+    case '2.0':
       return new BoltProtocolV2(
         server,
         chunker,
@@ -131,7 +134,7 @@ function createProtocol (
         log,
         onProtocolError
       )
-    case 3:
+    case '3.0':
       return new BoltProtocolV3(
         server,
         chunker,
@@ -140,7 +143,7 @@ function createProtocol (
         log,
         onProtocolError
       )
-    case 4.0:
+    case '4.0':
       return new BoltProtocolV4x0(
         server,
         chunker,
@@ -149,7 +152,7 @@ function createProtocol (
         log,
         onProtocolError
       )
-    case 4.1:
+    case '4.1':
       return new BoltProtocolV4x1(
         server,
         chunker,
@@ -159,7 +162,7 @@ function createProtocol (
         onProtocolError,
         serversideRouting
       )
-    case 4.2:
+    case '4.2':
       return new BoltProtocolV4x2(
         server,
         chunker,
@@ -169,7 +172,7 @@ function createProtocol (
         onProtocolError,
         serversideRouting
       )
-    case 4.3:
+    case '4.3':
       return new BoltProtocolV4x3(
         server,
         chunker,
@@ -179,7 +182,7 @@ function createProtocol (
         onProtocolError,
         serversideRouting
       )
-    case 4.4:
+    case '4.4':
       return new BoltProtocolV4x4(
         server,
         chunker,
@@ -189,7 +192,7 @@ function createProtocol (
         onProtocolError,
         serversideRouting
       )
-    case 5.0:
+    case '5.0':
       return new BoltProtocolV5x0(
         server,
         chunker,
@@ -199,7 +202,7 @@ function createProtocol (
         onProtocolError,
         serversideRouting
       )
-    case 5.1:
+    case '5.1':
       return new BoltProtocolV5x1(
         server,
         chunker,
@@ -209,7 +212,7 @@ function createProtocol (
         onProtocolError,
         serversideRouting
       )
-    case 5.2:
+    case '5.2':
       return new BoltProtocolV5x2(
         server,
         chunker,
@@ -219,7 +222,7 @@ function createProtocol (
         onProtocolError,
         serversideRouting
       )
-    case 5.3:
+    case '5.3':
       return new BoltProtocolV5x3(server,
         chunker,
         packingConfig,
@@ -227,7 +230,7 @@ function createProtocol (
         log,
         onProtocolError,
         serversideRouting)
-    case 5.4:
+    case '5.4':
       return new BoltProtocolV5x4(server,
         chunker,
         packingConfig,
@@ -235,7 +238,7 @@ function createProtocol (
         log,
         onProtocolError,
         serversideRouting)
-    case 5.5:
+    case '5.5':
       return new BoltProtocolV5x5(server,
         chunker,
         packingConfig,
@@ -243,7 +246,7 @@ function createProtocol (
         log,
         onProtocolError,
         serversideRouting)
-    case 5.6:
+    case '5.6':
       return new BoltProtocolV5x6(server,
         chunker,
         packingConfig,
@@ -251,7 +254,7 @@ function createProtocol (
         log,
         onProtocolError,
         serversideRouting)
-    case 5.7:
+    case '5.7':
       return new BoltProtocolV5x7(server,
         chunker,
         packingConfig,
@@ -259,7 +262,7 @@ function createProtocol (
         log,
         onProtocolError,
         serversideRouting)
-    case 5.8:
+    case '5.8':
       return new BoltProtocolV5x8(server,
         chunker,
         packingConfig,
@@ -267,7 +270,7 @@ function createProtocol (
         log,
         onProtocolError,
         serversideRouting)
-    case 6.0:
+    case '6.0':
       return new BoltProtocolV6x0(server,
         chunker,
         packingConfig,
diff --git a/packages/bolt-connection/src/bolt/handshake.js b/packages/bolt-connection/src/bolt/handshake.js
index 4354654cf..27e3c4b51 100644
--- a/packages/bolt-connection/src/bolt/handshake.js
+++ b/packages/bolt-connection/src/bolt/handshake.js
@@ -16,7 +16,7 @@
  */
 
 import { alloc } from '../channel'
-import { newError } from 'neo4j-driver-core'
+import { newError, ProtocolVersion } from 'neo4j-driver-core'
 
 const BOLT_MAGIC_PREAMBLE = 0x6060b017
 const AVAILABLE_BOLT_PROTOCOLS = ['6.0', '5.8', '5.7', '5.6', '5.4', '5.3', '5.2', '5.1', '5.0', '4.4', '4.3', '4.2', '3.0'] // bolt protocols the client will accept, ordered by preference
@@ -69,7 +69,7 @@ function parseNegotiatedResponse (buffer, log) {
         '(HTTP defaults to port 7474 whereas BOLT defaults to port 7687)'
     )
   }
-  return Number(h[3] + '.' + h[2])
+  return new ProtocolVersion(h[3], h[2])
 }
 
 function handshakeNegotiationV2 (channel, buffer, log) {
@@ -112,7 +112,7 @@ function handshakeNegotiationV2 (channel, buffer, log) {
       selectionBuffer.writeVarInt(capabilites)
       channel.write(selectionBuffer)
       resolve({
-        protocolVersion: Number(major + '.' + minor),
+        protocolVersion: new ProtocolVersion(major, minor),
         capabilites,
         consumeRemainingBuffer: consumer => {
           if (buffer.hasRemaining()) {
@@ -146,7 +146,7 @@ function newHandshakeBuffer () {
  */
 /**
  * @typedef HandshakeResult
- * @property {number} protocolVersion The protocol version negotiated in the handshake
+ * @property {ProtocolVersion} protocolVersion The protocol version negotiated in the handshake
  * @property {number} capabilites A bitmask representing the capabilities negotiated in the handshake
  * @property {function(BufferConsumerCallback)} consumeRemainingBuffer A function to consume the remaining buffer if it exists
  */
@@ -160,7 +160,7 @@ function newHandshakeBuffer () {
  */
 export default function handshake (channel, log) {
   return initialHandshake(channel, log).then((result) => {
-    if (result.protocolVersion === 255.1) {
+    if (result.protocolVersion.equalTo(new ProtocolVersion(255, 1))) {
       return handshakeNegotiationV2(channel, result.buffer, log)
     } else {
       return result
diff --git a/packages/bolt-connection/src/connection-provider/connection-provider-direct.js b/packages/bolt-connection/src/connection-provider/connection-provider-direct.js
index 565955a2e..d322450a5 100644
--- a/packages/bolt-connection/src/connection-provider/connection-provider-direct.js
+++ b/packages/bolt-connection/src/connection-provider/connection-provider-direct.js
@@ -91,7 +91,7 @@ export default class DirectConnectionProvider extends PooledConnectionProvider {
 
   async supportsMultiDb () {
     return await this._hasProtocolVersion(
-      version => version >= BOLT_PROTOCOL_V4_0
+      version => version.isGreaterOrEqualTo(BOLT_PROTOCOL_V4_0)
     )
   }
 
@@ -104,19 +104,19 @@ export default class DirectConnectionProvider extends PooledConnectionProvider {
 
   async supportsTransactionConfig () {
     return await this._hasProtocolVersion(
-      version => version >= BOLT_PROTOCOL_V3
+      version => version.isGreaterOrEqualTo(BOLT_PROTOCOL_V3)
     )
   }
 
   async supportsUserImpersonation () {
     return await this._hasProtocolVersion(
-      version => version >= BOLT_PROTOCOL_V4_4
+      version => version.isGreaterOrEqualTo(BOLT_PROTOCOL_V4_4)
     )
   }
 
   async supportsSessionAuth () {
     return await this._hasProtocolVersion(
-      version => version >= BOLT_PROTOCOL_V5_1
+      version => version.isGreaterOrEqualTo(BOLT_PROTOCOL_V5_1)
     )
   }
 
diff --git a/packages/bolt-connection/src/connection-provider/connection-provider-routing.js b/packages/bolt-connection/src/connection-provider/connection-provider-routing.js
index e69ce764b..9ff7fd82f 100644
--- a/packages/bolt-connection/src/connection-provider/connection-provider-routing.js
+++ b/packages/bolt-connection/src/connection-provider/connection-provider-routing.js
@@ -260,25 +260,25 @@ export default class RoutingConnectionProvider extends PooledConnectionProvider
 
   async supportsMultiDb () {
     return await this._hasProtocolVersion(
-      version => version >= BOLT_PROTOCOL_V4_0
+      version => version.isGreaterOrEqualTo(BOLT_PROTOCOL_V4_0)
     )
   }
 
   async supportsTransactionConfig () {
     return await this._hasProtocolVersion(
-      version => version >= BOLT_PROTOCOL_V3
+      version => version.isGreaterOrEqualTo(BOLT_PROTOCOL_V3)
     )
   }
 
   async supportsUserImpersonation () {
     return await this._hasProtocolVersion(
-      version => version >= BOLT_PROTOCOL_V4_4
+      version => version.isGreaterOrEqualTo(BOLT_PROTOCOL_V4_4)
     )
   }
 
   async supportsSessionAuth () {
     return await this._hasProtocolVersion(
-      version => version >= BOLT_PROTOCOL_V5_1
+      version => version.isGreaterOrEqualTo(BOLT_PROTOCOL_V5_1)
     )
   }
 
@@ -611,7 +611,7 @@ export default class RoutingConnectionProvider extends PooledConnectionProvider
       const connectionProvider = new SingleConnectionProvider(delegateConnection)
 
       const protocolVersion = connection.protocol().version
-      if (protocolVersion < 4.0) {
+      if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
         return [new Session({
           mode: WRITE,
           bookmarks: Bookmarks.empty(),
diff --git a/packages/bolt-connection/test/bolt/bolt-protocol-v1.test.js b/packages/bolt-connection/test/bolt/bolt-protocol-v1.test.js
index 26742391a..ad82fce1b 100644
--- a/packages/bolt-connection/test/bolt/bolt-protocol-v1.test.js
+++ b/packages/bolt-connection/test/bolt/bolt-protocol-v1.test.js
@@ -32,7 +32,8 @@ import {
   UnboundRelationship,
   Node,
   newError,
-  Vector
+  Vector,
+  ProtocolVersion
 } from 'neo4j-driver-core'
 import utils from '../test-utils'
 import { LoginObserver } from '../../src/bolt/stream-observers'
@@ -224,7 +225,7 @@ describe('#unit BoltProtocolV1', () => {
   it('should return correct bolt version number', () => {
     const protocol = new BoltProtocolV1(null, null, false)
 
-    expect(protocol.version).toBe(1)
+    expect(protocol.version).toEqual(new ProtocolVersion(1, 0))
   })
 
   describe('Bolt V3', () => {
diff --git a/packages/bolt-connection/test/bolt/bolt-protocol-v2.test.js b/packages/bolt-connection/test/bolt/bolt-protocol-v2.test.js
index f5f415cb6..301fccaca 100644
--- a/packages/bolt-connection/test/bolt/bolt-protocol-v2.test.js
+++ b/packages/bolt-connection/test/bolt/bolt-protocol-v2.test.js
@@ -31,7 +31,8 @@ import {
   Relationship,
   Time,
   UnboundRelationship,
-  Node
+  Node,
+  ProtocolVersion
 } from 'neo4j-driver-core'
 
 import { alloc } from '../../src/channel'
@@ -69,7 +70,7 @@ describe('#unit BoltProtocolV2', () => {
   it('should return correct bolt version number', () => {
     const protocol = new BoltProtocolV2(null, null, false)
 
-    expect(protocol.version).toBe(2)
+    expect(protocol.version).toEqual(new ProtocolVersion(2, 0))
   })
 
   describe('unpacker configuration', () => {
diff --git a/packages/bolt-connection/test/bolt/bolt-protocol-v3.test.js b/packages/bolt-connection/test/bolt/bolt-protocol-v3.test.js
index 2dbfd57e5..12a5a8407 100644
--- a/packages/bolt-connection/test/bolt/bolt-protocol-v3.test.js
+++ b/packages/bolt-connection/test/bolt/bolt-protocol-v3.test.js
@@ -36,7 +36,8 @@ import {
   Time,
   UnboundRelationship,
   Node,
-  internal
+  internal,
+  ProtocolVersion
 } from 'neo4j-driver-core'
 
 import { alloc } from '../../src/channel'
@@ -202,7 +203,7 @@ describe('#unit BoltProtocolV3', () => {
   it('should return correct bolt version number', () => {
     const protocol = new BoltProtocolV3(null, null, false)
 
-    expect(protocol.version).toBe(3)
+    expect(protocol.version).toEqual(new ProtocolVersion(3, 0))
   })
 
   it('should request the routing table from the correct procedure', () => {
diff --git a/packages/bolt-connection/test/bolt/bolt-protocol-v4x0.test.js b/packages/bolt-connection/test/bolt/bolt-protocol-v4x0.test.js
index a3390252e..34590dddc 100644
--- a/packages/bolt-connection/test/bolt/bolt-protocol-v4x0.test.js
+++ b/packages/bolt-connection/test/bolt/bolt-protocol-v4x0.test.js
@@ -36,7 +36,8 @@ import {
   Time,
   UnboundRelationship,
   Node,
-  internal
+  internal,
+  ProtocolVersion
 } from 'neo4j-driver-core'
 
 import { alloc } from '../../src/channel'
@@ -149,7 +150,7 @@ describe('#unit BoltProtocolV4x0', () => {
   it('should return correct bolt version number', () => {
     const protocol = new BoltProtocolV4x0(null, null, false)
 
-    expect(protocol.version).toBe(4)
+    expect(protocol.version).toEqual(new ProtocolVersion(4, 0))
   })
 
   it('should request the routing table from the correct procedure', () => {
diff --git a/packages/bolt-connection/test/bolt/bolt-protocol-v4x3.test.js b/packages/bolt-connection/test/bolt/bolt-protocol-v4x3.test.js
index 9770453e0..5844ff6f8 100644
--- a/packages/bolt-connection/test/bolt/bolt-protocol-v4x3.test.js
+++ b/packages/bolt-connection/test/bolt/bolt-protocol-v4x3.test.js
@@ -32,7 +32,8 @@ import {
   Time,
   UnboundRelationship,
   Node,
-  internal
+  internal,
+  ProtocolVersion
 } from 'neo4j-driver-core'
 
 import { alloc } from '../../src/channel'
@@ -169,7 +170,7 @@ describe('#unit BoltProtocolV4x3', () => {
   it('should return correct bolt version number', () => {
     const protocol = new BoltProtocolV4x3(null, null, false)
 
-    expect(protocol.version).toBe(4.3)
+    expect(protocol.version).toEqual(new ProtocolVersion(4, 3))
   })
 
   it('should update metadata', () => {
diff --git a/packages/bolt-connection/test/bolt/bolt-protocol-v4x4.test.js b/packages/bolt-connection/test/bolt/bolt-protocol-v4x4.test.js
index 8351774d7..49869979f 100644
--- a/packages/bolt-connection/test/bolt/bolt-protocol-v4x4.test.js
+++ b/packages/bolt-connection/test/bolt/bolt-protocol-v4x4.test.js
@@ -32,7 +32,8 @@ import {
   Time,
   UnboundRelationship,
   Node,
-  internal
+  internal,
+  ProtocolVersion
 } from 'neo4j-driver-core'
 
 import { alloc } from '../../src/channel'
@@ -243,7 +244,7 @@ describe('#unit BoltProtocolV4x4', () => {
   it('should return correct bolt version number', () => {
     const protocol = new BoltProtocolV4x4(null, null, false)
 
-    expect(protocol.version).toBe(4.4)
+    expect(protocol.version).toEqual(new ProtocolVersion(4, 4))
   })
 
   it('should update metadata', () => {
diff --git a/packages/bolt-connection/test/bolt/bolt-protocol-v5x0.test.js b/packages/bolt-connection/test/bolt/bolt-protocol-v5x0.test.js
index a9849e7d6..04126daa7 100644
--- a/packages/bolt-connection/test/bolt/bolt-protocol-v5x0.test.js
+++ b/packages/bolt-connection/test/bolt/bolt-protocol-v5x0.test.js
@@ -34,7 +34,8 @@ import {
   Time,
   UnboundRelationship,
   Node,
-  internal
+  internal,
+  ProtocolVersion
 } from 'neo4j-driver-core'
 
 import { alloc } from '../../src/channel'
@@ -243,7 +244,7 @@ describe('#unit BoltProtocolV5x0', () => {
   it('should return correct bolt version number', () => {
     const protocol = new BoltProtocolV5x0(null, null, false)
 
-    expect(protocol.version).toBe(5.0)
+    expect(protocol.version).toEqual(new ProtocolVersion(5, 0))
   })
 
   it('should update metadata', () => {
diff --git a/packages/bolt-connection/test/bolt/bolt-protocol-v5x1.test.js b/packages/bolt-connection/test/bolt/bolt-protocol-v5x1.test.js
index 3d6663852..801b2d189 100644
--- a/packages/bolt-connection/test/bolt/bolt-protocol-v5x1.test.js
+++ b/packages/bolt-connection/test/bolt/bolt-protocol-v5x1.test.js
@@ -34,7 +34,8 @@ import {
   Time,
   UnboundRelationship,
   Node,
-  internal
+  internal,
+  ProtocolVersion
 } from 'neo4j-driver-core'
 
 import { alloc } from '../../src/channel'
@@ -243,7 +244,7 @@ describe('#unit BoltProtocolV5x1', () => {
   it('should return correct bolt version number', () => {
     const protocol = new BoltProtocolV5x1(null, null, false)
 
-    expect(protocol.version).toBe(5.1)
+    expect(protocol.version).toEqual(new ProtocolVersion(5, 1))
   })
 
   it('should update metadata', () => {
diff --git a/packages/bolt-connection/test/bolt/bolt-protocol-v5x2.test.js b/packages/bolt-connection/test/bolt/bolt-protocol-v5x2.test.js
index ab1a210c5..d24adc5ad 100644
--- a/packages/bolt-connection/test/bolt/bolt-protocol-v5x2.test.js
+++ b/packages/bolt-connection/test/bolt/bolt-protocol-v5x2.test.js
@@ -34,7 +34,8 @@ import {
   Time,
   UnboundRelationship,
   Node,
-  internal
+  internal,
+  ProtocolVersion
 } from 'neo4j-driver-core'
 
 import { alloc } from '../../src/channel'
@@ -243,7 +244,7 @@ describe('#unit BoltProtocolV5x2', () => {
   it('should return correct bolt version number', () => {
     const protocol = new BoltProtocolV5x2(null, null, false)
 
-    expect(protocol.version).toBe(5.2)
+    expect(protocol.version).toEqual(new ProtocolVersion(5, 2))
   })
 
   it('should update metadata', () => {
diff --git a/packages/bolt-connection/test/bolt/bolt-protocol-v5x3.test.js b/packages/bolt-connection/test/bolt/bolt-protocol-v5x3.test.js
index bd27bb2f7..c0ca5182c 100644
--- a/packages/bolt-connection/test/bolt/bolt-protocol-v5x3.test.js
+++ b/packages/bolt-connection/test/bolt/bolt-protocol-v5x3.test.js
@@ -34,7 +34,8 @@ import {
   Time,
   UnboundRelationship,
   Node,
-  internal
+  internal,
+  ProtocolVersion
 } from 'neo4j-driver-core'
 
 import { alloc } from '../../src/channel'
@@ -243,7 +244,7 @@ describe('#unit BoltProtocolV5x3', () => {
   it('should return correct bolt version number', () => {
     const protocol = new BoltProtocolV5x3(null, null, false)
 
-    expect(protocol.version).toBe(5.3)
+    expect(protocol.version).toEqual(new ProtocolVersion(5, 3))
   })
 
   it('should update metadata', () => {
diff --git a/packages/bolt-connection/test/bolt/bolt-protocol-v5x4.test.js b/packages/bolt-connection/test/bolt/bolt-protocol-v5x4.test.js
index 1ccbc0cd9..7005950b7 100644
--- a/packages/bolt-connection/test/bolt/bolt-protocol-v5x4.test.js
+++ b/packages/bolt-connection/test/bolt/bolt-protocol-v5x4.test.js
@@ -34,7 +34,8 @@ import {
   Time,
   UnboundRelationship,
   Node,
-  internal
+  internal,
+  ProtocolVersion
 } from 'neo4j-driver-core'
 
 import { alloc } from '../../src/channel'
@@ -245,7 +246,7 @@ describe('#unit BoltProtocolV5x4', () => {
   it('should return correct bolt version number', () => {
     const protocol = new BoltProtocolV5x4(null, null, false)
 
-    expect(protocol.version).toBe(5.4)
+    expect(protocol.version).toEqual(new ProtocolVersion(5, 4))
   })
 
   it('should update metadata', () => {
diff --git a/packages/bolt-connection/test/bolt/bolt-protocol-v5x5.test.js b/packages/bolt-connection/test/bolt/bolt-protocol-v5x5.test.js
index 8e3cea85c..598817bcb 100644
--- a/packages/bolt-connection/test/bolt/bolt-protocol-v5x5.test.js
+++ b/packages/bolt-connection/test/bolt/bolt-protocol-v5x5.test.js
@@ -34,7 +34,8 @@ import {
   Time,
   UnboundRelationship,
   Node,
-  internal
+  internal,
+  ProtocolVersion
 } from 'neo4j-driver-core'
 
 import { alloc } from '../../src/channel'
@@ -245,7 +246,7 @@ describe('#unit BoltProtocolV5x5', () => {
   it('should return correct bolt version number', () => {
     const protocol = new BoltProtocolV5x5(null, null, false)
 
-    expect(protocol.version).toBe(5.5)
+    expect(protocol.version).toEqual(new ProtocolVersion(5, 5))
   })
 
   it('should update metadata', () => {
diff --git a/packages/bolt-connection/test/bolt/bolt-protocol-v5x6.test.js b/packages/bolt-connection/test/bolt/bolt-protocol-v5x6.test.js
index 5fb60fa71..9403ae467 100644
--- a/packages/bolt-connection/test/bolt/bolt-protocol-v5x6.test.js
+++ b/packages/bolt-connection/test/bolt/bolt-protocol-v5x6.test.js
@@ -34,7 +34,8 @@ import {
   Time,
   UnboundRelationship,
   Node,
-  internal
+  internal,
+  ProtocolVersion
 } from 'neo4j-driver-core'
 
 import { alloc } from '../../src/channel'
@@ -245,7 +246,7 @@ describe('#unit BoltProtocolV5x6', () => {
   it('should return correct bolt version number', () => {
     const protocol = new BoltProtocolV5x6(null, null, false)
 
-    expect(protocol.version).toBe(5.6)
+    expect(protocol.version).toEqual(new ProtocolVersion(5, 6))
   })
 
   it('should update metadata', () => {
diff --git a/packages/bolt-connection/test/bolt/bolt-protocol-v5x7.test.js b/packages/bolt-connection/test/bolt/bolt-protocol-v5x7.test.js
index a1c3cbb49..717668744 100644
--- a/packages/bolt-connection/test/bolt/bolt-protocol-v5x7.test.js
+++ b/packages/bolt-connection/test/bolt/bolt-protocol-v5x7.test.js
@@ -34,7 +34,8 @@ import {
   Time,
   UnboundRelationship,
   Node,
-  internal
+  internal,
+  ProtocolVersion
 } from 'neo4j-driver-core'
 
 import { alloc } from '../../src/channel'
@@ -254,7 +255,7 @@ describe('#unit BoltProtocolV5x7', () => {
   it('should return correct bolt version number', () => {
     const protocol = new BoltProtocolV5x7(null, null, false)
 
-    expect(protocol.version).toBe(5.7)
+    expect(protocol.version).toEqual(new ProtocolVersion(5, 7))
   })
 
   it('should update metadata', () => {
diff --git a/packages/bolt-connection/test/bolt/bolt-protocol-v5x8.test.js b/packages/bolt-connection/test/bolt/bolt-protocol-v5x8.test.js
index cd96faddf..ceb551b06 100644
--- a/packages/bolt-connection/test/bolt/bolt-protocol-v5x8.test.js
+++ b/packages/bolt-connection/test/bolt/bolt-protocol-v5x8.test.js
@@ -34,7 +34,8 @@ import {
   Time,
   UnboundRelationship,
   Node,
-  internal
+  internal,
+  ProtocolVersion
 } from 'neo4j-driver-core'
 
 import { alloc } from '../../src/channel'
@@ -254,7 +255,7 @@ describe('#unit BoltProtocolV5x8', () => {
   it('should return correct bolt version number', () => {
     const protocol = new BoltProtocolV5x8(null, null, false)
 
-    expect(protocol.version).toBe(5.8)
+    expect(protocol.version).toEqual(new ProtocolVersion(5, 8))
   })
 
   it('should update metadata', () => {
diff --git a/packages/bolt-connection/test/bolt/bolt-protocol-v6x0.test.js b/packages/bolt-connection/test/bolt/bolt-protocol-v6x0.test.js
index a0440d01b..7abaad9ab 100644
--- a/packages/bolt-connection/test/bolt/bolt-protocol-v6x0.test.js
+++ b/packages/bolt-connection/test/bolt/bolt-protocol-v6x0.test.js
@@ -36,7 +36,8 @@ import {
   Node,
   internal,
   vector,
-  json
+  json,
+  ProtocolVersion
 } from 'neo4j-driver-core'
 
 import { alloc } from '../../src/channel'
@@ -256,7 +257,7 @@ describe('#unit BoltProtocolV6x0', () => {
   it('should return correct bolt version number', () => {
     const protocol = new BoltProtocolV6x0(null, null, false)
 
-    expect(protocol.version).toBe(6.0)
+    expect(protocol.version).toEqual(new ProtocolVersion(6, 0))
   })
 
   it('should update metadata', () => {
diff --git a/packages/bolt-connection/test/bolt/index.test.js b/packages/bolt-connection/test/bolt/index.test.js
index 6fb17e146..1c721ab25 100644
--- a/packages/bolt-connection/test/bolt/index.test.js
+++ b/packages/bolt-connection/test/bolt/index.test.js
@@ -17,7 +17,7 @@
 import Bolt from '../../src/bolt'
 import DummyChannel from '../dummy-channel'
 import { alloc } from '../../src/channel'
-import { newError, internal } from 'neo4j-driver-core'
+import { newError, internal, ProtocolVersion } from 'neo4j-driver-core'
 import { Chunker, Dechunker } from '../../src/channel/chunking'
 
 import BoltProtocolV1 from '../../src/bolt/bolt-protocol-v1'
@@ -35,6 +35,9 @@ import BoltProtocolV5x3 from '../../src/bolt/bolt-protocol-v5x3'
 import BoltProtocolV5x4 from '../../src/bolt/bolt-protocol-v5x4'
 import BoltProtocolV5x5 from '../../src/bolt/bolt-protocol-v5x5'
 import BoltProtocolV5x6 from '../../src/bolt/bolt-protocol-v5x6'
+import BoltProtocolV5x7 from '../../src/bolt/bolt-protocol-v5x7'
+import BoltProtocolV5x8 from '../../src/bolt/bolt-protocol-v5x8'
+import BoltProtocolV6x0 from '../../src/bolt/bolt-protocol-v6x0'
 
 const {
   logger: { Logger }
@@ -60,28 +63,28 @@ describe('#unit Bolt', () => {
 
     it('should handle a successful handshake without remaining buffer', done => {
       const { channel, handshakePromise } = subject()
-      const expectedProtocolVersion = 4.3
+      const expectedProtocolVersion = '4.3'
 
       handshakePromise
         .then(({ protocolVersion, consumeRemainingBuffer }) => {
-          expect(protocolVersion).toEqual(expectedProtocolVersion)
+          expect(protocolVersion).toEqual({ major: 4, minor: 3 })
           consumeRemainingBuffer(() =>
             done.fail('Should not have remaining buffer')
           )
           done()
         })
-        .catch(e => done.fail(e))
+        .catch(e => { throw e })
 
       channel.onmessage(packedHandshakeMessage(expectedProtocolVersion))
     })
 
     it('should handle a successful handshake with remaining buffer', done => {
       const { channel, handshakePromise } = subject()
-      const expectedProtocolVersion = 4.3
+      const expectedProtocolVersion = '4.3'
       const expectedExtraBuffer = createExtraBuffer()
       handshakePromise
         .then(({ protocolVersion, consumeRemainingBuffer }) => {
-          expect(protocolVersion).toEqual(expectedProtocolVersion)
+          expect(protocolVersion).toEqual({ major: 4, minor: 3 })
           let consumeRemainingBufferCalled = false
           consumeRemainingBuffer(buffer => {
             consumeRemainingBufferCalled = true
@@ -90,7 +93,7 @@ describe('#unit Bolt', () => {
           expect(consumeRemainingBufferCalled).toBeTruthy()
           done()
         })
-        .catch(e => done.fail(e))
+        .catch(e => { throw e })
 
       channel.onmessage(
         packedHandshakeMessage(expectedProtocolVersion, expectedExtraBuffer)
@@ -129,7 +132,7 @@ describe('#unit Bolt', () => {
 
     it('should not log error if the server responds with a valid protocol version', async () => {
       const { channel, handshakePromise, log } = subject()
-      const expectedProtocolVersion = 4.3
+      const expectedProtocolVersion = '4.3'
       const logErrorSpy = jest.spyOn(log, 'error')
 
       channel.onmessage(packedHandshakeMessage(expectedProtocolVersion))
@@ -380,21 +383,24 @@ describe('#unit Bolt', () => {
       }
 
       const availableProtocols = [
-        v(1, BoltProtocolV1),
-        v(2, BoltProtocolV2),
-        v(3, BoltProtocolV3),
-        v(4.0, BoltProtocolV4x0),
-        v(4.1, BoltProtocolV4x1),
-        v(4.2, BoltProtocolV4x2),
-        v(4.3, BoltProtocolV4x3),
-        v(4.4, BoltProtocolV4x4),
-        v(5.0, BoltProtocolV5x0),
-        v(5.1, BoltProtocolV5x1),
-        v(5.2, BoltProtocolV5x2),
-        v(5.3, BoltProtocolV5x3),
-        v(5.4, BoltProtocolV5x4),
-        v(5.5, BoltProtocolV5x5),
-        v(5.6, BoltProtocolV5x6)
+        v(new ProtocolVersion(1, 0), BoltProtocolV1),
+        v(new ProtocolVersion(2, 0), BoltProtocolV2),
+        v(new ProtocolVersion(3, 0), BoltProtocolV3),
+        v(new ProtocolVersion(4, 0), BoltProtocolV4x0),
+        v(new ProtocolVersion(4, 1), BoltProtocolV4x1),
+        v(new ProtocolVersion(4, 2), BoltProtocolV4x2),
+        v(new ProtocolVersion(4, 3), BoltProtocolV4x3),
+        v(new ProtocolVersion(4, 4), BoltProtocolV4x4),
+        v(new ProtocolVersion(5, 0), BoltProtocolV5x0),
+        v(new ProtocolVersion(5, 1), BoltProtocolV5x1),
+        v(new ProtocolVersion(5, 2), BoltProtocolV5x2),
+        v(new ProtocolVersion(5, 3), BoltProtocolV5x3),
+        v(new ProtocolVersion(5, 4), BoltProtocolV5x4),
+        v(new ProtocolVersion(5, 5), BoltProtocolV5x5),
+        v(new ProtocolVersion(5, 6), BoltProtocolV5x6),
+        v(new ProtocolVersion(5, 7), BoltProtocolV5x7),
+        v(new ProtocolVersion(5, 8), BoltProtocolV5x8),
+        v(new ProtocolVersion(6, 0), BoltProtocolV6x0)
       ]
 
       availableProtocols.forEach(lambda)
diff --git a/packages/bolt-connection/test/connection-provider/connection-provider-direct.test.js b/packages/bolt-connection/test/connection-provider/connection-provider-direct.test.js
index 2ac4c4dc3..3cfecf72a 100644
--- a/packages/bolt-connection/test/connection-provider/connection-provider-direct.test.js
+++ b/packages/bolt-connection/test/connection-provider/connection-provider-direct.test.js
@@ -719,7 +719,7 @@ describe('.verifyConnectivityAndGetServerInfo()', () => {
     })
 
     function setup ({ releaseMock } = {}) {
-      const protocolVersion = 4.4
+      const protocolVersion = '4.4'
       const resetAndFlush = jest.fn(() => Promise.resolve())
       const server = { address: 'localhost:123', version: 'neo4j/1234' }
       const seenConnections = []
diff --git a/packages/bolt-connection/test/connection-provider/connection-provider-routing.test.js b/packages/bolt-connection/test/connection-provider/connection-provider-routing.test.js
index 84bda4bc0..8894b379d 100644
--- a/packages/bolt-connection/test/connection-provider/connection-provider-routing.test.js
+++ b/packages/bolt-connection/test/connection-provider/connection-provider-routing.test.js
@@ -24,7 +24,8 @@ import {
   internal,
   ServerInfo,
   staticAuthTokenManager,
-  authTokenManagers
+  authTokenManagers,
+  ProtocolVersion
 } from 'neo4j-driver-core'
 import { RoutingTable } from '../../src/rediscovery/'
 import SimpleHostNameResolver from '../../src/channel/browser/browser-host-name-resolver'
@@ -45,14 +46,10 @@ const READ = 'READ'
 const WRITE = 'WRITE'
 
 describe.each([
-  3,
-  4.0,
-  4.1,
-  4.2,
-  4.3,
-  4.4,
-  5.0,
-  5.1
+  new ProtocolVersion(4, 4),
+  new ProtocolVersion(5, 0),
+  new ProtocolVersion(5, 8),
+  new ProtocolVersion(6, 0)
 ])('#unit RoutingConnectionProvider (PROTOCOL_VERSION=%d)', (PROTOCOL_VERSION) => {
   const server0 = ServerAddress.fromUrl('server0')
   const server1 = ServerAddress.fromUrl('server1')
@@ -3043,7 +3040,7 @@ describe.each([
           [server3, server4],
           [server5, server6]
         )
-        const protocolVersion = 4.4
+        const protocolVersion = new ProtocolVersion(4, 4)
         const server = { address: 'localhost:123', version: 'neo4j/1234' }
 
         const seenConnectionsPerAddress = new Map()
@@ -3120,7 +3117,7 @@ describe.each([
         const pool = newPool({
           create: (address, release) => {
             if (i++ % 2 === 0) {
-              return new FakeConnection(address, release, 'version', 4.4, {})
+              return new FakeConnection(address, release, 'version', new ProtocolVersion(4, 4), {})
             }
             throw error
           }
@@ -3134,7 +3131,7 @@ describe.each([
         )
 
         const serverInfo = await connectionProvider.verifyConnectivityAndGetServerInfo({ database, accessMode })
-        expect(serverInfo).toEqual(new ServerInfo({}, 4.4))
+        expect(serverInfo).toEqual(new ServerInfo({}, new ProtocolVersion(4, 4)))
       })
     })
 
diff --git a/packages/core/src/connection-provider.ts b/packages/core/src/connection-provider.ts
index f9e1fe53a..a393026ef 100644
--- a/packages/core/src/connection-provider.ts
+++ b/packages/core/src/connection-provider.ts
@@ -18,6 +18,7 @@
 
 import Connection from './connection'
 import { bookmarks } from './internal'
+import { ProtocolVersion } from './internal/protocol-version'
 import { ServerInfo } from './result-summary'
 import { AuthToken } from './types'
 
@@ -155,7 +156,7 @@ class ConnectionProvider {
    * @returns {Promise<number>} the protocol version negotiated via handshake.
    * @throws {Error} When protocol negotiation fails
    */
-  getNegotiatedProtocolVersion (): Promise<number> {
+  getNegotiatedProtocolVersion (): Promise<ProtocolVersion> {
     throw Error('Not Implemented')
   }
 
diff --git a/packages/core/src/connection.ts b/packages/core/src/connection.ts
index f24d035dd..188d24be1 100644
--- a/packages/core/src/connection.ts
+++ b/packages/core/src/connection.ts
@@ -19,6 +19,7 @@
 import { Bookmarks } from './internal/bookmarks'
 import { AccessMode, TelemetryApis } from './internal/constants'
 import { ResultStreamObserver } from './internal/observers'
+import { ProtocolVersion } from './internal/protocol-version'
 import { TxConfig } from './internal/tx-config'
 import NotificationFilter from './notification-filter'
 
@@ -131,7 +132,7 @@ class Connection {
    *
    * @returns {number}
    */
-  getProtocolVersion (): number {
+  getProtocolVersion (): ProtocolVersion {
     throw new Error('Not implemented')
   }
 
diff --git a/packages/core/src/driver.ts b/packages/core/src/driver.ts
index 2f6fed974..144f42bca 100644
--- a/packages/core/src/driver.ts
+++ b/packages/core/src/driver.ts
@@ -48,6 +48,7 @@ import { newError } from './error'
 import NotificationFilter from './notification-filter'
 import HomeDatabaseCache from './internal/homedb-cache'
 import { cacheKey } from './internal/auth-util'
+import { ProtocolVersion } from './internal/protocol-version'
 
 const DEFAULT_MAX_CONNECTION_LIFETIME: number = 60 * 60 * 1000 // 1 hour
 
@@ -739,7 +740,7 @@ class Driver {
    * @returns {Promise<number>} the protocol version negotiated via handshake.
    * @throws {Error} When protocol negotiation fails
    */
-  getNegotiatedProtocolVersion (): Promise<number> {
+  getNegotiatedProtocolVersion (): Promise<ProtocolVersion> {
     const connectionProvider = this._getOrCreateConnectionProvider()
     return connectionProvider.getNegotiatedProtocolVersion()
   }
diff --git a/packages/core/src/index.ts b/packages/core/src/index.ts
index 83fc1400b..f0db6abba 100644
--- a/packages/core/src/index.ts
+++ b/packages/core/src/index.ts
@@ -103,6 +103,7 @@ import resultTransformers, { ResultTransformer } from './result-transformers'
 import ClientCertificate, { clientCertificateProviders, ClientCertificateProvider, ClientCertificateProviders, RotatingClientCertificateProvider, resolveCertificateProvider } from './client-certificate'
 import * as internal from './internal' // todo: removed afterwards
 import Vector, { VectorType, vector } from './vector'
+import { ProtocolVersion } from './internal/protocol-version'
 
 /**
  * Object containing string constants representing predefined {@link Neo4jError} codes.
@@ -189,7 +190,8 @@ const forExport = {
   notificationFilterDisabledClassification,
   notificationFilterMinimumSeverityLevel,
   clientCertificateProviders,
-  resolveCertificateProvider
+  resolveCertificateProvider,
+  ProtocolVersion
 }
 
 export {
@@ -269,7 +271,8 @@ export {
   clientCertificateProviders,
   resolveCertificateProvider,
   Vector,
-  vector
+  vector,
+  ProtocolVersion
 }
 
 export type {
diff --git a/packages/core/src/internal/constants.ts b/packages/core/src/internal/constants.ts
index 7403677c3..032e81a6e 100644
--- a/packages/core/src/internal/constants.ts
+++ b/packages/core/src/internal/constants.ts
@@ -15,6 +15,8 @@
  * limitations under the License.
  */
 
+import { ProtocolVersion } from './protocol-version'
+
 const FETCH_ALL = -1
 const DEFAULT_POOL_ACQUISITION_TIMEOUT = 60 * 1000 // 60 seconds
 const DEFAULT_POOL_MAX_SIZE = 100
@@ -23,24 +25,24 @@ const DEFAULT_CONNECTION_TIMEOUT_MILLIS = 30000 // 30 seconds by default
 const ACCESS_MODE_READ: 'READ' = 'READ'
 const ACCESS_MODE_WRITE: 'WRITE' = 'WRITE'
 
-const BOLT_PROTOCOL_V1: number = 1
-const BOLT_PROTOCOL_V2: number = 2
-const BOLT_PROTOCOL_V3: number = 3
-const BOLT_PROTOCOL_V4_0: number = 4.0
-const BOLT_PROTOCOL_V4_1: number = 4.1
-const BOLT_PROTOCOL_V4_2: number = 4.2
-const BOLT_PROTOCOL_V4_3: number = 4.3
-const BOLT_PROTOCOL_V4_4: number = 4.4
-const BOLT_PROTOCOL_V5_0: number = 5.0
-const BOLT_PROTOCOL_V5_1: number = 5.1
-const BOLT_PROTOCOL_V5_2: number = 5.2
-const BOLT_PROTOCOL_V5_3: number = 5.3
-const BOLT_PROTOCOL_V5_4: number = 5.4
-const BOLT_PROTOCOL_V5_5: number = 5.5
-const BOLT_PROTOCOL_V5_6: number = 5.6
-const BOLT_PROTOCOL_V5_7: number = 5.7
-const BOLT_PROTOCOL_V5_8: number = 5.8
-const BOLT_PROTOCOL_V6_0: number = 6.0
+const BOLT_PROTOCOL_V1: ProtocolVersion = new ProtocolVersion(1, 0)
+const BOLT_PROTOCOL_V2: ProtocolVersion = new ProtocolVersion(2, 0)
+const BOLT_PROTOCOL_V3: ProtocolVersion = new ProtocolVersion(3, 0)
+const BOLT_PROTOCOL_V4_0: ProtocolVersion = new ProtocolVersion(4, 0)
+const BOLT_PROTOCOL_V4_1: ProtocolVersion = new ProtocolVersion(4, 1)
+const BOLT_PROTOCOL_V4_2: ProtocolVersion = new ProtocolVersion(4, 2)
+const BOLT_PROTOCOL_V4_3: ProtocolVersion = new ProtocolVersion(4, 3)
+const BOLT_PROTOCOL_V4_4: ProtocolVersion = new ProtocolVersion(4, 4)
+const BOLT_PROTOCOL_V5_0: ProtocolVersion = new ProtocolVersion(5, 0)
+const BOLT_PROTOCOL_V5_1: ProtocolVersion = new ProtocolVersion(5, 1)
+const BOLT_PROTOCOL_V5_2: ProtocolVersion = new ProtocolVersion(5, 2)
+const BOLT_PROTOCOL_V5_3: ProtocolVersion = new ProtocolVersion(5, 3)
+const BOLT_PROTOCOL_V5_4: ProtocolVersion = new ProtocolVersion(5, 4)
+const BOLT_PROTOCOL_V5_5: ProtocolVersion = new ProtocolVersion(5, 5)
+const BOLT_PROTOCOL_V5_6: ProtocolVersion = new ProtocolVersion(5, 6)
+const BOLT_PROTOCOL_V5_7: ProtocolVersion = new ProtocolVersion(5, 7)
+const BOLT_PROTOCOL_V5_8: ProtocolVersion = new ProtocolVersion(5, 8)
+const BOLT_PROTOCOL_V6_0: ProtocolVersion = new ProtocolVersion(6, 0)
 
 const TELEMETRY_APIS = {
   MANAGED_TRANSACTION: 0,
diff --git a/packages/core/src/internal/protocol-version.ts b/packages/core/src/internal/protocol-version.ts
new file mode 100644
index 000000000..4a2fd2b89
--- /dev/null
+++ b/packages/core/src/internal/protocol-version.ts
@@ -0,0 +1,50 @@
+export class ProtocolVersion {
+  private readonly major: number
+  private readonly minor: number
+  constructor (major: number, minor: number) {
+    this.major = major
+    this.minor = minor
+  }
+
+  getMajor (): number {
+    return this.major
+  }
+
+  getMinor (): number {
+    return this.major
+  }
+
+  isLessThan (other: ProtocolVersion): boolean {
+    if (this.major < other.major) {
+      return true
+    } else if (this.major === other.major && this.minor < other.minor) {
+      return true
+    }
+    return false
+  }
+
+  isGreaterThan (other: ProtocolVersion): boolean {
+    if (this.major > other.major) {
+      return true
+    } else if (this.major === other.major && this.minor > other.minor) {
+      return true
+    }
+    return false
+  }
+
+  isGreaterOrEqualTo (other: ProtocolVersion): boolean {
+    return !this.isLessThan(other)
+  }
+
+  isLessOrEqualTo (other: ProtocolVersion): boolean {
+    return !this.isGreaterThan(other)
+  }
+
+  equalTo (other: ProtocolVersion): boolean {
+    return this.major === other.major && this.minor === other.minor
+  }
+
+  toString (): string {
+    return this.major.toString() + '.' + this.minor.toString()
+  }
+}
diff --git a/packages/core/src/result-summary.ts b/packages/core/src/result-summary.ts
index 8ffdc8b45..fbfa21085 100644
--- a/packages/core/src/result-summary.ts
+++ b/packages/core/src/result-summary.ts
@@ -19,6 +19,7 @@ import Integer from './integer'
 import { NumberOrInteger } from './graph-types'
 import { util } from './internal'
 import GqlStatusObject, { Notification, buildGqlStatusObjectFromMetadata, buildNotificationsFromMetadata } from './notification'
+import { ProtocolVersion } from './internal/protocol-version'
 
 /**
  * A ResultSummary instance contains structured metadata for a {@link Result}.
@@ -42,13 +43,13 @@ class ResultSummary<T extends NumberOrInteger = Integer> {
    * @param {string} query - The query this summary is for
    * @param {Object} parameters - Parameters for the query
    * @param {Object} metadata - Query metadata
-   * @param {number|undefined} protocolVersion - Bolt Protocol Version
+   * @param {ProtocolVersion|undefined} protocolVersion - Bolt Protocol Version
    */
   constructor (
     query: string,
     parameters: { [key: string]: any },
     metadata: any,
-    protocolVersion?: number
+    protocolVersion?: ProtocolVersion
   ) {
     /**
      * The query and parameters this summary is for.
@@ -434,7 +435,7 @@ class QueryStatistics {
  */
 class ServerInfo {
   address?: string
-  protocolVersion?: number
+  protocolVersion?: ProtocolVersion
   agent?: string
 
   /**
@@ -442,9 +443,9 @@ class ServerInfo {
    * @constructor
    * @param {Object} serverMeta - Object with serverMeta data
    * @param {Object} connectionInfo - Bolt connection info
-   * @param {number} protocolVersion - Bolt Protocol Version
+   * @param {ProtocolVersion} protocolVersion - Bolt Protocol Version
    */
-  constructor (serverMeta?: any, protocolVersion?: number) {
+  constructor (serverMeta?: any, protocolVersion?: ProtocolVersion) {
     if (serverMeta != null) {
       /**
        * The server adress
@@ -463,7 +464,7 @@ class ServerInfo {
 
     /**
      * The protocol version used by the connection
-     * @type {number}
+     * @type {ProtocolVersion}
      * @public
      */
     this.protocolVersion = protocolVersion
diff --git a/packages/core/test/driver.test.ts b/packages/core/test/driver.test.ts
index 2c1b1055d..8b45f1714 100644
--- a/packages/core/test/driver.test.ts
+++ b/packages/core/test/driver.test.ts
@@ -25,6 +25,7 @@ import { LogLevel } from '../src/types'
 import resultTransformers from '../src/result-transformers'
 import Record, { RecordShape } from '../src/record'
 import { invalidNotificationFilters, validNotificationFilters } from './utils/notification-filters.fixtures'
+import { ProtocolVersion } from '../src/internal/protocol-version'
 
 describe('Driver', () => {
   let driver: Driver | null
@@ -391,7 +392,7 @@ describe('Driver', () => {
         const expected: EagerResult = {
           keys: ['a'],
           records: [],
-          summary: new ResultSummary(query, params, {}, 5.0)
+          summary: new ResultSummary(query, params, {}, new ProtocolVersion(5, 0))
         }
         spiedExecute.mockResolvedValue(expected)
 
@@ -414,7 +415,7 @@ describe('Driver', () => {
         const expected: EagerResult = {
           keys: ['a'],
           records: [],
-          summary: new ResultSummary(query, params, {}, 5.0)
+          summary: new ResultSummary(query, params, {}, new ProtocolVersion(5, 0))
         }
         spiedExecute.mockResolvedValue(expected)
 
@@ -447,7 +448,7 @@ describe('Driver', () => {
           records: [
             new Record(['name', 'age'], ['A Person', 25])
           ],
-          summary: new ResultSummary(query, params, {}, 5.0)
+          summary: new ResultSummary(query, params, {}, new ProtocolVersion(5, 0))
         }
         spiedExecute.mockResolvedValue(expected)
 
diff --git a/packages/core/test/result-summary.test.ts b/packages/core/test/result-summary.test.ts
index 69c28595f..051970c58 100644
--- a/packages/core/test/result-summary.test.ts
+++ b/packages/core/test/result-summary.test.ts
@@ -16,6 +16,7 @@
  */
 
 import { int } from '../src'
+import { ProtocolVersion } from '../src/internal/protocol-version'
 import {
   ServerInfo,
   ProfiledPlan,
@@ -29,10 +30,10 @@ describe('ServerInfo', () => {
   it.each([
     [
       { address: '192.168.0.1', version: 'neo4j' },
-      4.3,
+      new ProtocolVersion(4, 3),
       {
         address: '192.168.0.1',
-        protocolVersion: 4.3,
+        protocolVersion: new ProtocolVersion(4, 3),
         agent: 'neo4j'
       }
     ],
@@ -45,7 +46,7 @@ describe('ServerInfo', () => {
         agent: 'neo4j'
       }
     ],
-    [undefined, 4.3, { protocolVersion: 4.3 }],
+    [undefined, new ProtocolVersion(4, 3), { protocolVersion: new ProtocolVersion(4, 3) }],
     [undefined, undefined, {}]
   ])(
     'new ServerInfo(%o, %i) === %j',
diff --git a/packages/core/test/result.test.ts b/packages/core/test/result.test.ts
index fcba57ad0..4cbc08950 100644
--- a/packages/core/test/result.test.ts
+++ b/packages/core/test/result.test.ts
@@ -26,6 +26,7 @@ import ResultStreamObserverMock from './utils/result-stream-observer.mock'
 import Result from '../src/result'
 import FakeConnection from './utils/connection.fake'
 import { Logger } from '../src/internal/logger'
+import { ProtocolVersion } from '../src/internal/protocol-version'
 
 interface AB {
   a: number
@@ -188,7 +189,7 @@ describe('Result', () => {
             resultAvailableAfter: 124,
             extraInfo: 'extra'
           }
-          const protocolVersion = 5.0
+          const protocolVersion = new ProtocolVersion(5, 0)
 
           const expectedSummary = new ResultSummary(
             expected.query,
@@ -462,7 +463,7 @@ describe('Result', () => {
           expect(releaseConnection).toHaveBeenCalled()
         })
 
-        it.each([123, undefined])(
+        it.each([new ProtocolVersion(123, 0), undefined])(
           'should enrich summary with the protocol version onCompleted',
           async version => {
             const connectionMock = new FakeConnection()
@@ -470,7 +471,7 @@ describe('Result', () => {
             // this test is considering the situation where protocol version
             // is undefined, which should not happen during normal driver
             // operation.
-            connectionMock.protocolVersion = version as unknown as number
+            connectionMock.protocolVersion = version as unknown as ProtocolVersion
 
             connectionHolderMock.getConnection = async (): Promise<Connection> => {
               return connectionMock
@@ -676,7 +677,7 @@ describe('Result', () => {
           expect(releaseConnection).toHaveBeenCalled()
         })
 
-        it.each([123, undefined])(
+        it.each([new ProtocolVersion(123, 0), undefined])(
           'should enrich summary with the protocol version on completed',
           async version => {
             const connectionMock = new FakeConnection()
@@ -684,7 +685,7 @@ describe('Result', () => {
             // this test is considering the situation where protocol version
             // is undefined, which should not happen during normal driver
             // operation.
-            connectionMock.protocolVersion = version as unknown as number
+            connectionMock.protocolVersion = version as unknown as ProtocolVersion
 
             connectionHolderMock.getConnection = async (): Promise<Connection> => {
               return await Promise.resolve(connectionMock)
diff --git a/packages/core/test/utils/connection.fake.ts b/packages/core/test/utils/connection.fake.ts
index 6153c3d0c..ef5fb176f 100644
--- a/packages/core/test/utils/connection.fake.ts
+++ b/packages/core/test/utils/connection.fake.ts
@@ -18,6 +18,7 @@
 import { Connection, ResultObserver, ResultSummary } from '../../src'
 import { BeginTransactionConfig, CommitTransactionConfig, RollbackConnectionConfig, RunQueryConfig } from '../../src/connection'
 import { ResultStreamObserver } from '../../src/internal/observers'
+import { ProtocolVersion } from '../../src/internal/protocol-version'
 
 /**
  * This class is like a mock of {@link Connection} that tracks invocations count.
@@ -38,7 +39,7 @@ export default class FakeConnection extends Connection {
   public seenParameters: any[]
   public seenProtocolOptions: any[]
   private readonly _server: any
-  public protocolVersion: number
+  public protocolVersion: ProtocolVersion
   public protocolErrorsHandled: number
   public seenProtocolErrors: string[]
   public seenRequestRoutingInformation: any[]
@@ -61,7 +62,7 @@ export default class FakeConnection extends Connection {
     this.seenParameters = []
     this.seenProtocolOptions = []
     this._server = {}
-    this.protocolVersion = 1
+    this.protocolVersion = new ProtocolVersion(1, 0)
     this.protocolErrorsHandled = 0
     this.seenProtocolErrors = []
     this.seenRequestRoutingInformation = []
@@ -119,7 +120,7 @@ export default class FakeConnection extends Connection {
     return mockResultStreamObserver('ROLLBACK', {})
   }
 
-  getProtocolVersion (): number {
+  getProtocolVersion (): ProtocolVersion {
     return this.protocolVersion
   }
 
@@ -152,7 +153,7 @@ export default class FakeConnection extends Connection {
     this.seenProtocolErrors.push(message)
   }
 
-  withProtocolVersion (version: number): FakeConnection {
+  withProtocolVersion (version: ProtocolVersion): FakeConnection {
     this.protocolVersion = version
     return this
   }
diff --git a/packages/neo4j-driver-deno/lib/bolt-connection/bolt/bolt-protocol-v1.js b/packages/neo4j-driver-deno/lib/bolt-connection/bolt/bolt-protocol-v1.js
index a83f32f5a..ae6cb1b63 100644
--- a/packages/neo4j-driver-deno/lib/bolt-connection/bolt/bolt-protocol-v1.js
+++ b/packages/neo4j-driver-deno/lib/bolt-connection/bolt/bolt-protocol-v1.js
@@ -100,7 +100,7 @@ export default class BoltProtocol {
   }
 
   /**
-   * Returns the numerical version identifier for this protocol
+   * Returns the stringified version identifier for this protocol
    */
   get version () {
     return BOLT_PROTOCOL_V1
diff --git a/packages/neo4j-driver-deno/lib/bolt-connection/bolt/create.js b/packages/neo4j-driver-deno/lib/bolt-connection/bolt/create.js
index cea9b1dd4..9c8885202 100644
--- a/packages/neo4j-driver-deno/lib/bolt-connection/bolt/create.js
+++ b/packages/neo4j-driver-deno/lib/bolt-connection/bolt/create.js
@@ -15,7 +15,7 @@
  * limitations under the License.
  */
 
-import { newError } from '../../core/index.ts'
+import { newError, ProtocolVersion } from '../../core/index.ts'
 import BoltProtocolV1 from './bolt-protocol-v1.js'
 import BoltProtocolV2 from './bolt-protocol-v2.js'
 import BoltProtocolV3 from './bolt-protocol-v3.js'
@@ -112,8 +112,11 @@ function createProtocol (
   onProtocolError,
   log
 ) {
-  switch (version) {
-    case 1:
+  if (!(version instanceof ProtocolVersion) || version === undefined || version === null) {
+    throw newError('Unknown Bolt protocol version: ' + version)
+  }
+  switch (version.toString()) {
+    case '1.0':
       return new BoltProtocolV1(
         server,
         chunker,
@@ -122,7 +125,7 @@ function createProtocol (
         log,
         onProtocolError
       )
-    case 2:
+    case '2.0':
       return new BoltProtocolV2(
         server,
         chunker,
@@ -131,7 +134,7 @@ function createProtocol (
         log,
         onProtocolError
       )
-    case 3:
+    case '3.0':
       return new BoltProtocolV3(
         server,
         chunker,
@@ -140,7 +143,7 @@ function createProtocol (
         log,
         onProtocolError
       )
-    case 4.0:
+    case '4.0':
       return new BoltProtocolV4x0(
         server,
         chunker,
@@ -149,7 +152,7 @@ function createProtocol (
         log,
         onProtocolError
       )
-    case 4.1:
+    case '4.1':
       return new BoltProtocolV4x1(
         server,
         chunker,
@@ -159,7 +162,7 @@ function createProtocol (
         onProtocolError,
         serversideRouting
       )
-    case 4.2:
+    case '4.2':
       return new BoltProtocolV4x2(
         server,
         chunker,
@@ -169,7 +172,7 @@ function createProtocol (
         onProtocolError,
         serversideRouting
       )
-    case 4.3:
+    case '4.3':
       return new BoltProtocolV4x3(
         server,
         chunker,
@@ -179,7 +182,7 @@ function createProtocol (
         onProtocolError,
         serversideRouting
       )
-    case 4.4:
+    case '4.4':
       return new BoltProtocolV4x4(
         server,
         chunker,
@@ -189,7 +192,7 @@ function createProtocol (
         onProtocolError,
         serversideRouting
       )
-    case 5.0:
+    case '5.0':
       return new BoltProtocolV5x0(
         server,
         chunker,
@@ -199,7 +202,7 @@ function createProtocol (
         onProtocolError,
         serversideRouting
       )
-    case 5.1:
+    case '5.1':
       return new BoltProtocolV5x1(
         server,
         chunker,
@@ -209,7 +212,7 @@ function createProtocol (
         onProtocolError,
         serversideRouting
       )
-    case 5.2:
+    case '5.2':
       return new BoltProtocolV5x2(
         server,
         chunker,
@@ -219,7 +222,7 @@ function createProtocol (
         onProtocolError,
         serversideRouting
       )
-    case 5.3:
+    case '5.3':
       return new BoltProtocolV5x3(server,
         chunker,
         packingConfig,
@@ -227,7 +230,7 @@ function createProtocol (
         log,
         onProtocolError,
         serversideRouting)
-    case 5.4:
+    case '5.4':
       return new BoltProtocolV5x4(server,
         chunker,
         packingConfig,
@@ -235,7 +238,7 @@ function createProtocol (
         log,
         onProtocolError,
         serversideRouting)
-    case 5.5:
+    case '5.5':
       return new BoltProtocolV5x5(server,
         chunker,
         packingConfig,
@@ -243,7 +246,7 @@ function createProtocol (
         log,
         onProtocolError,
         serversideRouting)
-    case 5.6:
+    case '5.6':
       return new BoltProtocolV5x6(server,
         chunker,
         packingConfig,
@@ -251,7 +254,7 @@ function createProtocol (
         log,
         onProtocolError,
         serversideRouting)
-    case 5.7:
+    case '5.7':
       return new BoltProtocolV5x7(server,
         chunker,
         packingConfig,
@@ -259,7 +262,7 @@ function createProtocol (
         log,
         onProtocolError,
         serversideRouting)
-    case 5.8:
+    case '5.8':
       return new BoltProtocolV5x8(server,
         chunker,
         packingConfig,
@@ -267,7 +270,7 @@ function createProtocol (
         log,
         onProtocolError,
         serversideRouting)
-    case 6.0:
+    case '6.0':
       return new BoltProtocolV6x0(server,
         chunker,
         packingConfig,
diff --git a/packages/neo4j-driver-deno/lib/bolt-connection/bolt/handshake.js b/packages/neo4j-driver-deno/lib/bolt-connection/bolt/handshake.js
index adcf1624f..91276257a 100644
--- a/packages/neo4j-driver-deno/lib/bolt-connection/bolt/handshake.js
+++ b/packages/neo4j-driver-deno/lib/bolt-connection/bolt/handshake.js
@@ -16,7 +16,7 @@
  */
 
 import { alloc } from '../channel/index.js'
-import { newError } from '../../core/index.ts'
+import { newError, ProtocolVersion } from '../../core/index.ts'
 
 const BOLT_MAGIC_PREAMBLE = 0x6060b017
 const AVAILABLE_BOLT_PROTOCOLS = ['6.0', '5.8', '5.7', '5.6', '5.4', '5.3', '5.2', '5.1', '5.0', '4.4', '4.3', '4.2', '3.0'] // bolt protocols the client will accept, ordered by preference
@@ -69,7 +69,7 @@ function parseNegotiatedResponse (buffer, log) {
         '(HTTP defaults to port 7474 whereas BOLT defaults to port 7687)'
     )
   }
-  return Number(h[3] + '.' + h[2])
+  return new ProtocolVersion(h[3], h[2])
 }
 
 function handshakeNegotiationV2 (channel, buffer, log) {
@@ -112,7 +112,7 @@ function handshakeNegotiationV2 (channel, buffer, log) {
       selectionBuffer.writeVarInt(capabilites)
       channel.write(selectionBuffer)
       resolve({
-        protocolVersion: Number(major + '.' + minor),
+        protocolVersion: new ProtocolVersion(major, minor),
         capabilites,
         consumeRemainingBuffer: consumer => {
           if (buffer.hasRemaining()) {
@@ -146,7 +146,7 @@ function newHandshakeBuffer () {
  */
 /**
  * @typedef HandshakeResult
- * @property {number} protocolVersion The protocol version negotiated in the handshake
+ * @property {ProtocolVersion} protocolVersion The protocol version negotiated in the handshake
  * @property {number} capabilites A bitmask representing the capabilities negotiated in the handshake
  * @property {function(BufferConsumerCallback)} consumeRemainingBuffer A function to consume the remaining buffer if it exists
  */
@@ -160,7 +160,7 @@ function newHandshakeBuffer () {
  */
 export default function handshake (channel, log) {
   return initialHandshake(channel, log).then((result) => {
-    if (result.protocolVersion === 255.1) {
+    if (result.protocolVersion.equalTo(new ProtocolVersion(255, 1))) {
       return handshakeNegotiationV2(channel, result.buffer, log)
     } else {
       return result
diff --git a/packages/neo4j-driver-deno/lib/bolt-connection/connection-provider/connection-provider-direct.js b/packages/neo4j-driver-deno/lib/bolt-connection/connection-provider/connection-provider-direct.js
index 94d864865..ce8d3c048 100644
--- a/packages/neo4j-driver-deno/lib/bolt-connection/connection-provider/connection-provider-direct.js
+++ b/packages/neo4j-driver-deno/lib/bolt-connection/connection-provider/connection-provider-direct.js
@@ -91,7 +91,7 @@ export default class DirectConnectionProvider extends PooledConnectionProvider {
 
   async supportsMultiDb () {
     return await this._hasProtocolVersion(
-      version => version >= BOLT_PROTOCOL_V4_0
+      version => version.isGreaterOrEqualTo(BOLT_PROTOCOL_V4_0)
     )
   }
 
@@ -104,19 +104,19 @@ export default class DirectConnectionProvider extends PooledConnectionProvider {
 
   async supportsTransactionConfig () {
     return await this._hasProtocolVersion(
-      version => version >= BOLT_PROTOCOL_V3
+      version => version.isGreaterOrEqualTo(BOLT_PROTOCOL_V3)
     )
   }
 
   async supportsUserImpersonation () {
     return await this._hasProtocolVersion(
-      version => version >= BOLT_PROTOCOL_V4_4
+      version => version.isGreaterOrEqualTo(BOLT_PROTOCOL_V4_4)
     )
   }
 
   async supportsSessionAuth () {
     return await this._hasProtocolVersion(
-      version => version >= BOLT_PROTOCOL_V5_1
+      version => version.isGreaterOrEqualTo(BOLT_PROTOCOL_V5_1)
     )
   }
 
diff --git a/packages/neo4j-driver-deno/lib/bolt-connection/connection-provider/connection-provider-routing.js b/packages/neo4j-driver-deno/lib/bolt-connection/connection-provider/connection-provider-routing.js
index 1fc1e8639..23f3a23af 100644
--- a/packages/neo4j-driver-deno/lib/bolt-connection/connection-provider/connection-provider-routing.js
+++ b/packages/neo4j-driver-deno/lib/bolt-connection/connection-provider/connection-provider-routing.js
@@ -260,25 +260,25 @@ export default class RoutingConnectionProvider extends PooledConnectionProvider
 
   async supportsMultiDb () {
     return await this._hasProtocolVersion(
-      version => version >= BOLT_PROTOCOL_V4_0
+      version => version.isGreaterOrEqualTo(BOLT_PROTOCOL_V4_0)
     )
   }
 
   async supportsTransactionConfig () {
     return await this._hasProtocolVersion(
-      version => version >= BOLT_PROTOCOL_V3
+      version => version.isGreaterOrEqualTo(BOLT_PROTOCOL_V3)
     )
   }
 
   async supportsUserImpersonation () {
     return await this._hasProtocolVersion(
-      version => version >= BOLT_PROTOCOL_V4_4
+      version => version.isGreaterOrEqualTo(BOLT_PROTOCOL_V4_4)
     )
   }
 
   async supportsSessionAuth () {
     return await this._hasProtocolVersion(
-      version => version >= BOLT_PROTOCOL_V5_1
+      version => version.isGreaterOrEqualTo(BOLT_PROTOCOL_V5_1)
     )
   }
 
@@ -611,7 +611,7 @@ export default class RoutingConnectionProvider extends PooledConnectionProvider
       const connectionProvider = new SingleConnectionProvider(delegateConnection)
 
       const protocolVersion = connection.protocol().version
-      if (protocolVersion < 4.0) {
+      if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
         return [new Session({
           mode: WRITE,
           bookmarks: Bookmarks.empty(),
diff --git a/packages/neo4j-driver-deno/lib/core/connection-provider.ts b/packages/neo4j-driver-deno/lib/core/connection-provider.ts
index c77e64501..4f165500d 100644
--- a/packages/neo4j-driver-deno/lib/core/connection-provider.ts
+++ b/packages/neo4j-driver-deno/lib/core/connection-provider.ts
@@ -18,6 +18,7 @@
 
 import Connection from './connection.ts'
 import { bookmarks } from './internal/index.ts'
+import { ProtocolVersion } from './internal/protocol-version.ts'
 import { ServerInfo } from './result-summary.ts'
 import { AuthToken } from './types.ts'
 
@@ -155,7 +156,7 @@ class ConnectionProvider {
    * @returns {Promise<number>} the protocol version negotiated via handshake.
    * @throws {Error} When protocol negotiation fails
    */
-  getNegotiatedProtocolVersion (): Promise<number> {
+  getNegotiatedProtocolVersion (): Promise<ProtocolVersion> {
     throw Error('Not Implemented')
   }
 
diff --git a/packages/neo4j-driver-deno/lib/core/connection.ts b/packages/neo4j-driver-deno/lib/core/connection.ts
index b45e746ca..40bee0ecf 100644
--- a/packages/neo4j-driver-deno/lib/core/connection.ts
+++ b/packages/neo4j-driver-deno/lib/core/connection.ts
@@ -19,6 +19,7 @@
 import { Bookmarks } from './internal/bookmarks.ts'
 import { AccessMode, TelemetryApis } from './internal/constants.ts'
 import { ResultStreamObserver } from './internal/observers.ts'
+import { ProtocolVersion } from './internal/protocol-version.ts'
 import { TxConfig } from './internal/tx-config.ts'
 import NotificationFilter from './notification-filter.ts'
 
@@ -131,7 +132,7 @@ class Connection {
    *
    * @returns {number}
    */
-  getProtocolVersion (): number {
+  getProtocolVersion (): ProtocolVersion {
     throw new Error('Not implemented')
   }
 
diff --git a/packages/neo4j-driver-deno/lib/core/driver.ts b/packages/neo4j-driver-deno/lib/core/driver.ts
index 1f8019cfb..7248e9026 100644
--- a/packages/neo4j-driver-deno/lib/core/driver.ts
+++ b/packages/neo4j-driver-deno/lib/core/driver.ts
@@ -48,6 +48,7 @@ import { newError } from './error.ts'
 import NotificationFilter from './notification-filter.ts'
 import HomeDatabaseCache from './internal/homedb-cache.ts'
 import { cacheKey } from './internal/auth-util.ts'
+import { ProtocolVersion } from './internal/protocol-version.ts'
 
 const DEFAULT_MAX_CONNECTION_LIFETIME: number = 60 * 60 * 1000 // 1 hour
 
@@ -739,7 +740,7 @@ class Driver {
    * @returns {Promise<number>} the protocol version negotiated via handshake.
    * @throws {Error} When protocol negotiation fails
    */
-  getNegotiatedProtocolVersion (): Promise<number> {
+  getNegotiatedProtocolVersion (): Promise<ProtocolVersion> {
     const connectionProvider = this._getOrCreateConnectionProvider()
     return connectionProvider.getNegotiatedProtocolVersion()
   }
diff --git a/packages/neo4j-driver-deno/lib/core/index.ts b/packages/neo4j-driver-deno/lib/core/index.ts
index b22a6600b..ec1efe74b 100644
--- a/packages/neo4j-driver-deno/lib/core/index.ts
+++ b/packages/neo4j-driver-deno/lib/core/index.ts
@@ -103,6 +103,7 @@ import resultTransformers, { ResultTransformer } from './result-transformers.ts'
 import ClientCertificate, { clientCertificateProviders, ClientCertificateProvider, ClientCertificateProviders, RotatingClientCertificateProvider, resolveCertificateProvider } from './client-certificate.ts'
 import * as internal from './internal/index.ts'
 import Vector, { VectorType, vector } from './vector.ts'
+import { ProtocolVersion } from './internal/protocol-version.ts'
 
 /**
  * Object containing string constants representing predefined {@link Neo4jError} codes.
@@ -189,7 +190,8 @@ const forExport = {
   notificationFilterDisabledClassification,
   notificationFilterMinimumSeverityLevel,
   clientCertificateProviders,
-  resolveCertificateProvider
+  resolveCertificateProvider,
+  ProtocolVersion
 }
 
 export {
@@ -269,7 +271,8 @@ export {
   clientCertificateProviders,
   resolveCertificateProvider,
   Vector,
-  vector
+  vector,
+  ProtocolVersion
 }
 
 export type {
diff --git a/packages/neo4j-driver-deno/lib/core/internal/constants.ts b/packages/neo4j-driver-deno/lib/core/internal/constants.ts
index 7403677c3..b709889e3 100644
--- a/packages/neo4j-driver-deno/lib/core/internal/constants.ts
+++ b/packages/neo4j-driver-deno/lib/core/internal/constants.ts
@@ -15,6 +15,8 @@
  * limitations under the License.
  */
 
+import { ProtocolVersion } from './protocol-version.ts'
+
 const FETCH_ALL = -1
 const DEFAULT_POOL_ACQUISITION_TIMEOUT = 60 * 1000 // 60 seconds
 const DEFAULT_POOL_MAX_SIZE = 100
@@ -23,24 +25,24 @@ const DEFAULT_CONNECTION_TIMEOUT_MILLIS = 30000 // 30 seconds by default
 const ACCESS_MODE_READ: 'READ' = 'READ'
 const ACCESS_MODE_WRITE: 'WRITE' = 'WRITE'
 
-const BOLT_PROTOCOL_V1: number = 1
-const BOLT_PROTOCOL_V2: number = 2
-const BOLT_PROTOCOL_V3: number = 3
-const BOLT_PROTOCOL_V4_0: number = 4.0
-const BOLT_PROTOCOL_V4_1: number = 4.1
-const BOLT_PROTOCOL_V4_2: number = 4.2
-const BOLT_PROTOCOL_V4_3: number = 4.3
-const BOLT_PROTOCOL_V4_4: number = 4.4
-const BOLT_PROTOCOL_V5_0: number = 5.0
-const BOLT_PROTOCOL_V5_1: number = 5.1
-const BOLT_PROTOCOL_V5_2: number = 5.2
-const BOLT_PROTOCOL_V5_3: number = 5.3
-const BOLT_PROTOCOL_V5_4: number = 5.4
-const BOLT_PROTOCOL_V5_5: number = 5.5
-const BOLT_PROTOCOL_V5_6: number = 5.6
-const BOLT_PROTOCOL_V5_7: number = 5.7
-const BOLT_PROTOCOL_V5_8: number = 5.8
-const BOLT_PROTOCOL_V6_0: number = 6.0
+const BOLT_PROTOCOL_V1: ProtocolVersion = new ProtocolVersion(1, 0)
+const BOLT_PROTOCOL_V2: ProtocolVersion = new ProtocolVersion(2, 0)
+const BOLT_PROTOCOL_V3: ProtocolVersion = new ProtocolVersion(3, 0)
+const BOLT_PROTOCOL_V4_0: ProtocolVersion = new ProtocolVersion(4, 0)
+const BOLT_PROTOCOL_V4_1: ProtocolVersion = new ProtocolVersion(4, 1)
+const BOLT_PROTOCOL_V4_2: ProtocolVersion = new ProtocolVersion(4, 2)
+const BOLT_PROTOCOL_V4_3: ProtocolVersion = new ProtocolVersion(4, 3)
+const BOLT_PROTOCOL_V4_4: ProtocolVersion = new ProtocolVersion(4, 4)
+const BOLT_PROTOCOL_V5_0: ProtocolVersion = new ProtocolVersion(5, 0)
+const BOLT_PROTOCOL_V5_1: ProtocolVersion = new ProtocolVersion(5, 1)
+const BOLT_PROTOCOL_V5_2: ProtocolVersion = new ProtocolVersion(5, 2)
+const BOLT_PROTOCOL_V5_3: ProtocolVersion = new ProtocolVersion(5, 3)
+const BOLT_PROTOCOL_V5_4: ProtocolVersion = new ProtocolVersion(5, 4)
+const BOLT_PROTOCOL_V5_5: ProtocolVersion = new ProtocolVersion(5, 5)
+const BOLT_PROTOCOL_V5_6: ProtocolVersion = new ProtocolVersion(5, 6)
+const BOLT_PROTOCOL_V5_7: ProtocolVersion = new ProtocolVersion(5, 7)
+const BOLT_PROTOCOL_V5_8: ProtocolVersion = new ProtocolVersion(5, 8)
+const BOLT_PROTOCOL_V6_0: ProtocolVersion = new ProtocolVersion(6, 0)
 
 const TELEMETRY_APIS = {
   MANAGED_TRANSACTION: 0,
diff --git a/packages/neo4j-driver-deno/lib/core/internal/protocol-version.ts b/packages/neo4j-driver-deno/lib/core/internal/protocol-version.ts
new file mode 100644
index 000000000..4a2fd2b89
--- /dev/null
+++ b/packages/neo4j-driver-deno/lib/core/internal/protocol-version.ts
@@ -0,0 +1,50 @@
+export class ProtocolVersion {
+  private readonly major: number
+  private readonly minor: number
+  constructor (major: number, minor: number) {
+    this.major = major
+    this.minor = minor
+  }
+
+  getMajor (): number {
+    return this.major
+  }
+
+  getMinor (): number {
+    return this.major
+  }
+
+  isLessThan (other: ProtocolVersion): boolean {
+    if (this.major < other.major) {
+      return true
+    } else if (this.major === other.major && this.minor < other.minor) {
+      return true
+    }
+    return false
+  }
+
+  isGreaterThan (other: ProtocolVersion): boolean {
+    if (this.major > other.major) {
+      return true
+    } else if (this.major === other.major && this.minor > other.minor) {
+      return true
+    }
+    return false
+  }
+
+  isGreaterOrEqualTo (other: ProtocolVersion): boolean {
+    return !this.isLessThan(other)
+  }
+
+  isLessOrEqualTo (other: ProtocolVersion): boolean {
+    return !this.isGreaterThan(other)
+  }
+
+  equalTo (other: ProtocolVersion): boolean {
+    return this.major === other.major && this.minor === other.minor
+  }
+
+  toString (): string {
+    return this.major.toString() + '.' + this.minor.toString()
+  }
+}
diff --git a/packages/neo4j-driver-deno/lib/core/result-summary.ts b/packages/neo4j-driver-deno/lib/core/result-summary.ts
index 2a1bedc1e..7dabd337c 100644
--- a/packages/neo4j-driver-deno/lib/core/result-summary.ts
+++ b/packages/neo4j-driver-deno/lib/core/result-summary.ts
@@ -19,6 +19,7 @@ import Integer from './integer.ts'
 import { NumberOrInteger } from './graph-types.ts'
 import { util } from './internal/index.ts'
 import GqlStatusObject, { Notification, buildGqlStatusObjectFromMetadata, buildNotificationsFromMetadata } from './notification.ts'
+import { ProtocolVersion } from './internal/protocol-version.ts'
 
 /**
  * A ResultSummary instance contains structured metadata for a {@link Result}.
@@ -42,13 +43,13 @@ class ResultSummary<T extends NumberOrInteger = Integer> {
    * @param {string} query - The query this summary is for
    * @param {Object} parameters - Parameters for the query
    * @param {Object} metadata - Query metadata
-   * @param {number|undefined} protocolVersion - Bolt Protocol Version
+   * @param {ProtocolVersion|undefined} protocolVersion - Bolt Protocol Version
    */
   constructor (
     query: string,
     parameters: { [key: string]: any },
     metadata: any,
-    protocolVersion?: number
+    protocolVersion?: ProtocolVersion
   ) {
     /**
      * The query and parameters this summary is for.
@@ -434,7 +435,7 @@ class QueryStatistics {
  */
 class ServerInfo {
   address?: string
-  protocolVersion?: number
+  protocolVersion?: ProtocolVersion
   agent?: string
 
   /**
@@ -442,9 +443,9 @@ class ServerInfo {
    * @constructor
    * @param {Object} serverMeta - Object with serverMeta data
    * @param {Object} connectionInfo - Bolt connection info
-   * @param {number} protocolVersion - Bolt Protocol Version
+   * @param {ProtocolVersion} protocolVersion - Bolt Protocol Version
    */
-  constructor (serverMeta?: any, protocolVersion?: number) {
+  constructor (serverMeta?: any, protocolVersion?: ProtocolVersion) {
     if (serverMeta != null) {
       /**
        * The server adress
@@ -463,7 +464,7 @@ class ServerInfo {
 
     /**
      * The protocol version used by the connection
-     * @type {number}
+     * @type {ProtocolVersion}
      * @public
      */
     this.protocolVersion = protocolVersion
diff --git a/packages/neo4j-driver-lite/test/unit/index.test.ts b/packages/neo4j-driver-lite/test/unit/index.test.ts
index 98971e38a..e80264abe 100644
--- a/packages/neo4j-driver-lite/test/unit/index.test.ts
+++ b/packages/neo4j-driver-lite/test/unit/index.test.ts
@@ -58,7 +58,7 @@ import neo4j, {
   RecordShape
 } from '../../'
 
-import { internal } from 'neo4j-driver-core'
+import { internal, ProtocolVersion } from 'neo4j-driver-core'
 
 const {
   logger: { Logger }
@@ -261,7 +261,7 @@ describe('index', () => {
         supportsTransactionConfig: async () => true,
         supportsUserImpersonation: async () => true,
         verifyConnectivityAndGetServerInfo: async () => new ServerInfo({}),
-        getNegotiatedProtocolVersion: async () => 5.0,
+        getNegotiatedProtocolVersion: async () => new ProtocolVersion(5, 0),
         verifyAuthentication: async () => true,
         supportsSessionAuth: async () => true,
         SSREnabled: () => false
diff --git a/packages/neo4j-driver/test/driver.test.js b/packages/neo4j-driver/test/driver.test.js
index 7332de92b..66001d9b1 100644
--- a/packages/neo4j-driver/test/driver.test.js
+++ b/packages/neo4j-driver/test/driver.test.js
@@ -591,7 +591,7 @@ describe('#integration driver', () => {
           `neo4j://${sharedNeo4j.hostnameWithBoltPort}`,
           sharedNeo4j.authToken
         )
-        if (protocolVersion >= 5.8) {
+        if (protocolVersion.isGreaterOrEqualTo({ major: 5, minor: 8 })) {
           try {
             const session1 = driver.session(auth)
             await session1.run('CREATE () RETURN 42')
diff --git a/packages/neo4j-driver/test/examples.test.js b/packages/neo4j-driver/test/examples.test.js
index cfec25faf..688889f98 100644
--- a/packages/neo4j-driver/test/examples.test.js
+++ b/packages/neo4j-driver/test/examples.test.js
@@ -118,7 +118,7 @@ describe('#integration examples', () => {
   }, 60000)
 
   it('rx autocommit transaction example', async () => {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -617,7 +617,7 @@ describe('#integration examples', () => {
   })
 
   it('rx result consume example', async () => {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -795,7 +795,7 @@ describe('#integration examples', () => {
   }, 60000)
 
   it('rx transaction function example', async () => {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -898,7 +898,7 @@ describe('#integration examples', () => {
   }, 60000)
 
   it('use another database example', async () => {
-    if (protocolVersion < 4.0 || edition !== 'enterprise') {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 }) || edition !== 'enterprise') {
       return
     }
 
diff --git a/packages/neo4j-driver/test/internal/connection-channel.test.js b/packages/neo4j-driver/test/internal/connection-channel.test.js
index 7e42a8c6a..b3bd61aa7 100644
--- a/packages/neo4j-driver/test/internal/connection-channel.test.js
+++ b/packages/neo4j-driver/test/internal/connection-channel.test.js
@@ -428,7 +428,7 @@ describe('#integration ChannelConnection', () => {
     expect(messages[0].signature).toEqual(0x01) // first message is either INIT or HELLO
 
     const protocolVersion = connection.protocol().version
-    if (protocolVersion >= 3) {
+    if (protocolVersion.isLessThan({ major: 3, minor: 0 })) {
       expect(messages[messages.length - 1].signature).toEqual(0x02) // last message is GOODBYE in V3
     }
   })
diff --git a/packages/neo4j-driver/test/rx/navigation.test.js b/packages/neo4j-driver/test/rx/navigation.test.js
index e8f0a7d6d..9252378f2 100644
--- a/packages/neo4j-driver/test/rx/navigation.test.js
+++ b/packages/neo4j-driver/test/rx/navigation.test.js
@@ -380,7 +380,7 @@ describe('#integration-rx navigation', () => {
    * @param {RxSession|RxTransaction} runnable
    */
   async function shouldReturnKeys (protocolVersion, runnable) {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -401,7 +401,7 @@ describe('#integration-rx navigation', () => {
    * @param {RxSession|RxTransaction} runnable
    */
   async function shouldReturnSummary (protocolVersion, runnable) {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -415,7 +415,7 @@ describe('#integration-rx navigation', () => {
    * @param {RxSession|RxTransaction} runnable
    */
   async function shouldReturnKeysAndRecords (protocolVersion, runnable) {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -432,7 +432,7 @@ describe('#integration-rx navigation', () => {
    * @param {RxSession|RxTransaction} runnable
    */
   async function shouldReturnRecordsAndSummary (protocolVersion, runnable) {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -449,7 +449,7 @@ describe('#integration-rx navigation', () => {
    * @param {RxSession|RxTransaction} runnable
    */
   async function shouldReturnKeysRecordsAndSummary (protocolVersion, runnable) {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -470,7 +470,7 @@ describe('#integration-rx navigation', () => {
     protocolVersion,
     runnable
   ) {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -495,7 +495,7 @@ describe('#integration-rx navigation', () => {
     protocolVersion,
     runnable
   ) {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -515,7 +515,7 @@ describe('#integration-rx navigation', () => {
     protocolVersion,
     runnable
   ) {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -532,7 +532,7 @@ describe('#integration-rx navigation', () => {
    * @param {RxSession|RxTransaction} runnable
    */
   async function shouldReturnKeysMultipleTimes (protocolVersion, runnable) {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -551,7 +551,7 @@ describe('#integration-rx navigation', () => {
    * @param {RxSession|RxTransaction} runnable
    */
   async function shouldReturnSummaryMultipleTimes (protocolVersion, runnable) {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -570,7 +570,7 @@ describe('#integration-rx navigation', () => {
    * @param {RxSession|RxTransaction} runnable
    */
   async function shouldReturnRecordsOnlyOnce (protocolVersion, runnable) {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -596,7 +596,7 @@ describe('#integration-rx navigation', () => {
     protocolVersion,
     runnable
   ) {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -619,7 +619,7 @@ describe('#integration-rx navigation', () => {
     protocolVersion,
     runnable
   ) {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -636,7 +636,7 @@ describe('#integration-rx navigation', () => {
     protocolVersion,
     runnable
   ) {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -651,7 +651,7 @@ describe('#integration-rx navigation', () => {
    * @param {RxSession|RxTransaction} runnable
    */
   async function shouldFailOnKeysWhenRunFails (protocolVersion, runnable) {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -674,7 +674,7 @@ describe('#integration-rx navigation', () => {
     protocolVersion,
     runnable
   ) {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -693,7 +693,7 @@ describe('#integration-rx navigation', () => {
    * @param {RxSession|RxTransaction} runnable
    */
   async function shouldFailOnRecordsWhenRunFails (protocolVersion, runnable) {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -716,7 +716,7 @@ describe('#integration-rx navigation', () => {
     protocolVersion,
     runnable
   ) {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -742,7 +742,7 @@ describe('#integration-rx navigation', () => {
    * @param {RxSession|RxTransaction} runnable
    */
   async function shouldFailOnSummaryWhenRunFails (protocolVersion, runnable) {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -765,7 +765,7 @@ describe('#integration-rx navigation', () => {
     protocolVersion,
     runnable
   ) {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -800,7 +800,7 @@ describe('#integration-rx navigation', () => {
     selectObservable,
     closeFunc
   ) {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
diff --git a/packages/neo4j-driver/test/rx/nested-statements.test.js b/packages/neo4j-driver/test/rx/nested-statements.test.js
index 08de9eecd..2ba854eff 100644
--- a/packages/neo4j-driver/test/rx/nested-statements.test.js
+++ b/packages/neo4j-driver/test/rx/nested-statements.test.js
@@ -56,7 +56,7 @@ describe('#integration-rx transaction', () => {
 
   it('should handle nested queries within one transaction', async () => {
     const size = 1024
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -93,7 +93,7 @@ describe('#integration-rx transaction', () => {
 
   it('should give proper error when nesting queries within one session', async () => {
     const size = 1024
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
diff --git a/packages/neo4j-driver/test/rx/session.test.js b/packages/neo4j-driver/test/rx/session.test.js
index d74915711..1c5fbdd4e 100644
--- a/packages/neo4j-driver/test/rx/session.test.js
+++ b/packages/neo4j-driver/test/rx/session.test.js
@@ -56,7 +56,7 @@ describe('#integration rx-session', () => {
   })
 
   it('should be able to run a simple query', async () => {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -80,7 +80,7 @@ describe('#integration rx-session', () => {
   }, 60000)
 
   it('should be able to reuse session after failure', async () => {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -109,7 +109,7 @@ describe('#integration rx-session', () => {
   }, 60000)
 
   it('should run transactions without retries', async () => {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -131,7 +131,7 @@ describe('#integration rx-session', () => {
   }, 60000)
 
   it('should run transaction with retries on reactive failures', async () => {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -158,7 +158,7 @@ describe('#integration rx-session', () => {
   }, 60000)
 
   it('should run transaction with retries on synchronous failures', async () => {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -185,7 +185,7 @@ describe('#integration rx-session', () => {
   }, 60000)
 
   it('should fail on transactions that cannot be retried', async () => {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -208,7 +208,7 @@ describe('#integration rx-session', () => {
   }, 60000)
 
   it('should fail even after a transient error', async () => {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -239,7 +239,7 @@ describe('#integration rx-session', () => {
 
   describe('.executeWrite()', () => {
     it('should run transactions without retries', async () => {
-      if (protocolVersion < 4.0) {
+      if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
         return
       }
 
@@ -261,7 +261,7 @@ describe('#integration rx-session', () => {
     }, 60000)
 
     it('should run transaction with retries on reactive failures', async () => {
-      if (protocolVersion < 4.0) {
+      if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
         return
       }
 
@@ -288,7 +288,7 @@ describe('#integration rx-session', () => {
     }, 60000)
 
     it('should run transaction with retries on synchronous failures', async () => {
-      if (protocolVersion < 4.0) {
+      if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
         return
       }
 
@@ -315,7 +315,7 @@ describe('#integration rx-session', () => {
     }, 60000)
 
     it('should fail on transactions that cannot be retried', async () => {
-      if (protocolVersion < 4.0) {
+      if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
         return
       }
 
@@ -338,7 +338,7 @@ describe('#integration rx-session', () => {
     }, 60000)
 
     it('should fail even after a transient error', async () => {
-      if (protocolVersion < 4.0) {
+      if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
         return
       }
 
diff --git a/packages/neo4j-driver/test/rx/summary.test.js b/packages/neo4j-driver/test/rx/summary.test.js
index 0c9b6d7a9..228c5ebeb 100644
--- a/packages/neo4j-driver/test/rx/summary.test.js
+++ b/packages/neo4j-driver/test/rx/summary.test.js
@@ -260,7 +260,7 @@ describe('#integration-rx summary', () => {
    * @param {RxSession|RxTransaction} runnable
    */
   async function shouldReturnNonNullSummary (protocolVersion, runnable) {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -277,7 +277,7 @@ describe('#integration-rx summary', () => {
    * @param {RxSession|RxTransaction} runnable
    */
   async function shouldReturnSummaryWithQueryText (protocolVersion, runnable) {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -295,7 +295,7 @@ describe('#integration-rx summary', () => {
     protocolVersion,
     runnable
   ) {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -314,7 +314,7 @@ describe('#integration-rx summary', () => {
     protocolVersion,
     runnable
   ) {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -333,7 +333,7 @@ describe('#integration-rx summary', () => {
     session,
     useTransaction = false
   ) {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -370,7 +370,7 @@ describe('#integration-rx summary', () => {
     protocolVersion,
     runnable
   ) {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -402,7 +402,7 @@ describe('#integration-rx summary', () => {
     protocolVersion,
     runnable
   ) {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -440,7 +440,7 @@ describe('#integration-rx summary', () => {
     protocolVersion,
     runnable
   ) {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -472,7 +472,7 @@ describe('#integration-rx summary', () => {
     driver,
     runnable
   ) {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -513,7 +513,7 @@ describe('#integration-rx summary', () => {
     protocolVersion,
     runnable
   ) {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -544,7 +544,7 @@ describe('#integration-rx summary', () => {
     driver,
     runnable
   ) {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -582,7 +582,7 @@ describe('#integration-rx summary', () => {
    * @param {RxSession|RxTransaction} runnable
    */
   async function shouldNotReturnPlanAndProfile (protocolVersion, runnable) {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -602,7 +602,7 @@ describe('#integration-rx summary', () => {
    * @param {RxSession|RxTransaction} runnable
    */
   async function shouldReturnPlanButNoProfile (protocolVersion, runnable) {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -623,7 +623,7 @@ describe('#integration-rx summary', () => {
    * @param {RxSession|RxTransaction} runnable
    */
   async function shouldReturnPlanAndProfile (protocolVersion, runnable) {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -645,7 +645,7 @@ describe('#integration-rx summary', () => {
    * @param {RxSession|RxTransaction} runnable
    */
   async function shouldNotReturnNotification (protocolVersion, runnable) {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -663,7 +663,7 @@ describe('#integration-rx summary', () => {
    * @param {RxSession|RxTransaction} runnable
    */
   async function shouldReturnNotification (protocolVersion, runnable) {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
diff --git a/packages/neo4j-driver/test/rx/transaction.test.js b/packages/neo4j-driver/test/rx/transaction.test.js
index 1aaf44ab3..cc28f94e0 100644
--- a/packages/neo4j-driver/test/rx/transaction.test.js
+++ b/packages/neo4j-driver/test/rx/transaction.test.js
@@ -55,7 +55,7 @@ describe('#integration-rx transaction', () => {
   })
 
   it('should commit an empty transaction', async () => {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -72,7 +72,7 @@ describe('#integration-rx transaction', () => {
   })
 
   it('should rollback an empty transaction', async () => {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -89,7 +89,7 @@ describe('#integration-rx transaction', () => {
   })
 
   it('should run query and commit', async () => {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -118,7 +118,7 @@ describe('#integration-rx transaction', () => {
   })
 
   it('should run query and rollback', async () => {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -147,7 +147,7 @@ describe('#integration-rx transaction', () => {
   })
 
   it('should run query and close', async () => {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -200,7 +200,7 @@ describe('#integration-rx transaction', () => {
   })
 
   it('should fail to commit after a failed query', async () => {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -224,7 +224,7 @@ describe('#integration-rx transaction', () => {
   })
 
   it('should succeed to rollback after a failed query', async () => {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -240,7 +240,7 @@ describe('#integration-rx transaction', () => {
   })
 
   it('should fail to commit after successful and failed query', async () => {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -266,7 +266,7 @@ describe('#integration-rx transaction', () => {
   })
 
   it('should succeed to rollback after successful and failed query', async () => {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -284,7 +284,7 @@ describe('#integration-rx transaction', () => {
   })
 
   it('should fail to run another query after a failed one', async () => {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -309,7 +309,7 @@ describe('#integration-rx transaction', () => {
   })
 
   it('should not allow commit after commit', async () => {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -334,7 +334,7 @@ describe('#integration-rx transaction', () => {
   })
 
   it('should not allow rollback after rollback', async () => {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -359,7 +359,7 @@ describe('#integration-rx transaction', () => {
   })
 
   it('should fail to rollback after commit', async () => {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -384,7 +384,7 @@ describe('#integration-rx transaction', () => {
   })
 
   it('should fail to commit after rollback', async () => {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -417,7 +417,7 @@ describe('#integration-rx transaction', () => {
   })
 
   it('should update bookmarks', async () => {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -441,7 +441,7 @@ describe('#integration-rx transaction', () => {
   })
 
   it('should propagate failures from queries', async () => {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -473,7 +473,7 @@ describe('#integration-rx transaction', () => {
   })
 
   it('should not run until subscribed', async () => {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -517,7 +517,7 @@ describe('#integration-rx transaction', () => {
   it('should not propagate run failure from summary', async () => {
     pending('behaviour difference across drivers')
 
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -539,7 +539,7 @@ describe('#integration-rx transaction', () => {
   })
 
   async function verifyNoFailureIfNotExecuted (commit) {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -551,7 +551,7 @@ describe('#integration-rx transaction', () => {
   }
 
   async function verifyFailToRunQueryAfterTxcIsComplete (commit) {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -576,7 +576,7 @@ describe('#integration-rx transaction', () => {
   }
 
   async function verifyCanRunMultipleQueries (commit) {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -600,7 +600,7 @@ describe('#integration-rx transaction', () => {
   }
 
   async function verifyCanRunMultipleQueriesWithoutWaiting (commit) {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
@@ -626,7 +626,7 @@ describe('#integration-rx transaction', () => {
   }
 
   async function verifyCanRunMultipleQueriesWithoutStreaming (commit) {
-    if (protocolVersion < 4.0) {
+    if (protocolVersion.isLessThan({ major: 4, minor: 0 })) {
       return
     }
 
diff --git a/packages/neo4j-driver/test/spatial-types.test.js b/packages/neo4j-driver/test/spatial-types.test.js
index 94d1be2b4..5a1e766d8 100644
--- a/packages/neo4j-driver/test/spatial-types.test.js
+++ b/packages/neo4j-driver/test/spatial-types.test.js
@@ -309,7 +309,7 @@ describe('#integration spatial-types', () => {
   }
 
   function neo4jDoesNotSupportPoints (done) {
-    if (protocolVersion < 2) {
+    if (protocolVersion.isLessThan({ major: 2, minor: 0 })) {
       done()
       return true
     }
diff --git a/packages/neo4j-driver/test/temporal-types.test.js b/packages/neo4j-driver/test/temporal-types.test.js
index 9d43932b3..86eed37b8 100644
--- a/packages/neo4j-driver/test/temporal-types.test.js
+++ b/packages/neo4j-driver/test/temporal-types.test.js
@@ -1466,7 +1466,7 @@ describe('#integration temporal-types', () => {
   }
 
   function neo4jDoesNotSupportTemporalTypes () {
-    if (protocolVersion < 2) {
+    if (protocolVersion?.isLessThan({ major: 2, minor: 0 })) {
       return true
     }
     return false
diff --git a/packages/neo4j-driver/test/vector-type.test.js b/packages/neo4j-driver/test/vector-type.test.js
index 713022291..e27287a26 100644
--- a/packages/neo4j-driver/test/vector-type.test.js
+++ b/packages/neo4j-driver/test/vector-type.test.js
@@ -47,7 +47,7 @@ describe('#integration vector type', () => {
   })
 
   it('write and read vectors', async () => {
-    if (protocolVersion >= 6.0 && edition === 'enterprise') {
+    if (protocolVersion.isGreaterOrEqualTo({ major: 6, minor: 0 }) && edition === 'enterprise') {
       const driver = driverGlobal
 
       const bufferWriter = Uint8Array.from([1, 1])
diff --git a/packages/testkit-backend/src/responses.js b/packages/testkit-backend/src/responses.js
index b78324672..ad08e3b73 100644
--- a/packages/testkit-backend/src/responses.js
+++ b/packages/testkit-backend/src/responses.js
@@ -69,7 +69,7 @@ export function Bookmarks ({ bookmarks }) {
 export function ServerInfo ({ serverInfo }) {
   return response('ServerInfo', {
     ...serverInfo,
-    protocolVersion: serverInfo.protocolVersion.toFixed(1)
+    protocolVersion: serverInfo.protocolVersion.toString()
   })
 }
 
diff --git a/packages/testkit-backend/src/summary-binder.js b/packages/testkit-backend/src/summary-binder.js
index 9f13f75a5..ccbc85a89 100644
--- a/packages/testkit-backend/src/summary-binder.js
+++ b/packages/testkit-backend/src/summary-binder.js
@@ -69,7 +69,7 @@ export function nativeToTestkitSummary (summary, binder) {
     },
     serverInfo: {
       agent: summary.server.agent,
-      protocolVersion: summary.server.protocolVersion.toFixed(1)
+      protocolVersion: summary.server.protocolVersion.toString()
     },
     counters: mapCounters(summary.counters),
     plan: mapPlan(summary.plan),