[DOC-13459]: Create a release note for Couchbase Server 7.6.8

modules/release-notes/pages/relnotes.adoc

@@ -2,6 +2,9 @@
 :page-aliases: analytics:releasenote
 :description: Couchbase Server 7.6.x introduces multiple new features and fixes, as well as some deprecations and removals.
 :page-toclevels: 2
+:stem:
+
+include::partial$docs-server-7.6.8-release-note.adoc[]
 
 include::partial$docs-server-7.6.7-release-note.adoc[]
 

modules/release-notes/partials/docs-server-7.6.8-release-note.adoc

@@ -0,0 +1,119 @@
+
+
+[#release-768]
+== Release 7.6.8 (October 2025)
+
+Couchbase Server 7.6.8 was released in October 2025.
+This maintenance release contains fixes to issues.
+
+== Fixed Issues
+
+
+
+
+=== Cluster Manager
+
+[#table-known-issues-768-cluster-manager, cols="10,40,40"]
+|===
+|Issue | Description | Resolution
+
+| https://jira.issues.couchbase.com/browse/MB-67106/[MB-67106]
+
+a| *Metric Rename – Cache Miss Ratio → Miss Ratio*
+The _Cache Miss Ratio_ metric name suggested it measured memory or disk caching performance. In reality, as of version 7.6.2, it was redefined to measure the proportion of read (`get`) operations that fail because the requested key is not present in the bucket at all.  To eliminate this confusion, the metric has been renamed to *Get Miss Ratio*.
+
+| Issue resolved
+
+| https://jira.issues.couchbase.com/browse/MB-67758/[MB-67758]
+
+a| {empty}
+
+
+| Issue resolved
+
+|===
+
+
+=== Data Service
+
+[#table-known-issues-768-data-service, cols="10,40,40"]
+|===
+|Issue | Description | Resolution
+
+| https://jira.issues.couchbase.com/browse/MB-66876/[MB-66876]
+
+a| {empty}
+
+
+| Issue resolved
+
+| https://jira.issues.couchbase.com/browse/MB-67106/[MB-67106]
+
+a| *Metric Rename – Cache Miss Ratio → Miss Ratio*
+The _Cache Miss Ratio_ metric name suggested it measured memory or disk caching performance. In reality, as of version 7.6.2, it was redefined to measure the proportion of read (`get`) operations that fail because the requested key is not present in the bucket at all.  To eliminate this confusion, the metric has been renamed to *Get Miss Ratio*.
+
+| Issue resolved
+
+|===
+
+
+
+
+=== XDCR
+
+[#table-known-issues-768-xdcr, cols="10,40,40"]
+|===
+|Issue | Description | Resolution
+
+| https://jira.issues.couchbase.com/browse/MB-66649/[MB-66649]
+
+a| When modifying filter expressions or mapping configurations (explicit/migration), race conditions may prevent proper replication from the source. This can result in source bucket documents failing to replicate to the target bucket.
+
+To address this issue, the system now displays an alert when detecting replication resuming from stale checkpoints. This alert notifies users to delete and recreate the affected replication.
+
+IMPORTANT: Do not dismiss this alert by pausing and resuming the replication, as this will hide the warning without resolving the underlying issue.
+
+| Issue resolved
+
+|===
+
+
+=== Query Service
+
+[#table-known-issues-768-query-service, cols="10,40,40"]
+|===
+|Issue | Description | Resolution
+
+| https://jira.issues.couchbase.com/browse/MB-67849/[MB-67849]
+
+a| The recent builds of Couchbase Server versions 7.2.7 through 8.1.0 and Enterprise Analytics 2.1.0 include updates from the go_json library to address int64 overflow issues reported under MB-67849. The updates involve implementing proper checks for int64 overflow in order to properly represent large numbers (greater than stem:[2^63] or less than stem:[-2^63]).
+
+| Issue resolved
+
+|===
+
+
+
+
+
+
+
+
+
+
+=== Tools
+
+[#table-known-issues-768-tools, cols="10,40,40"]
+|===
+|Issue | Description | Resolution
+
+| https://jira.issues.couchbase.com/browse/MB-60676/[MB-60676]
+
+a| {empty}
+
+
+| Issue resolved
+
+|===
+
+

preview/HEAD.yml

@@ -1,6 +1,4 @@
 sources:
-  docs-server:
-    branches: [DOC-13396-Create-release-note-for-7.6.7-Release,DOC-13372-Create-release-note-for-docs-server-7.2.8]
   docs-devex:
     branches: release/7.6
   cb-swagger: