diff --git a/CHANGELOG.md b/CHANGELOG.md
index 719b7d7..219e482 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [2.1.0](https://github.com/web3-storage/fr32-sha2-256-trunc254-padded-binary-tree-multihash/compare/v2.0.0...v2.1.0) (2023-10-26)
+
+
+### Features
+
+* byte length estimate ([#20](https://github.com/web3-storage/fr32-sha2-256-trunc254-padded-binary-tree-multihash/issues/20)) ([ec93756](https://github.com/web3-storage/fr32-sha2-256-trunc254-padded-binary-tree-multihash/commit/ec93756d767883a107c0059d139189665d4141e8))
+
 ## [2.0.0](https://github.com/web3-storage/fr32-sha2-256-trunc254-padded-binary-tree-multihash/compare/v1.1.4...v2.0.0) (2023-10-19)
 
 
diff --git a/package-lock.json b/package-lock.json
index 70c442e..e1ad102 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "fr32-sha2-256-trunc254-padded-binary-tree-multihash",
-  "version": "2.0.0",
+  "version": "2.1.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "fr32-sha2-256-trunc254-padded-binary-tree-multihash",
-      "version": "2.0.0",
+      "version": "2.1.0",
       "devDependencies": {
         "c8": "7.13.0",
         "chai": "4.3.7",
diff --git a/package.json b/package.json
index ff1a543..2afeb65 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "fr32-sha2-256-trunc254-padded-binary-tree-multihash",
-  "version": "2.0.0",
+  "version": "2.1.0",
   "description": "Fil Piece multihash",
   "keywords": [
     "piece",