diff --git a/CHANGELOG.md b/CHANGELOG.md
index b73e0567d61..3ecd654d82d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,18 @@
 
 All notable changes to this project will be documented in this file. See [standard-version](https://github.com/conventional-changelog/standard-version) for commit guidelines.
 
+## [1.31.0](https://github.com/ajaxorg/ace/compare/v1.30.0...v1.31.0) (2023-10-23)
+
+
+### Features
+
+* add nasal language ([#5342](https://github.com/ajaxorg/ace/issues/5342)) ([4fff99e](https://github.com/ajaxorg/ace/commit/4fff99e320539a1472ce0512cd1fd3e5fc7f2ca6))
+
+
+### Bug Fixes
+
+* doc tooltip not filtering properly ([e5034c7](https://github.com/ajaxorg/ace/commit/e5034c7b58fb47fe57b28dbb001e72a567ef9abe))
+
 ## [1.30.0](https://github.com/ajaxorg/ace/compare/v1.29.0...v1.30.0) (2023-10-13)
 
 
diff --git a/build b/build
index fdda569bde1..2eb6b076cb4 160000
--- a/build
+++ b/build
@@ -1 +1 @@
-Subproject commit fdda569bde10114a8dd8057a5831a225a716b5c3
+Subproject commit 2eb6b076cb4734175331c7f1c33f84aa6a7ac445
diff --git a/package.json b/package.json
index 20b3cc59ef0..d6285f02c52 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
     "name": "ace-code",
     "description": "Ajax.org Code Editor is a full featured source code highlighting editor that powers the Cloud9 IDE",
-    "version": "1.30.0",
+    "version": "1.31.0",
     "homepage": "http://github.com/ajaxorg/ace",
     "engines": {
         "node": ">= 0.6.0"
diff --git a/src/config.js b/src/config.js
index 071e33984c5..0fcaf644709 100644
--- a/src/config.js
+++ b/src/config.js
@@ -168,6 +168,6 @@ var reportErrorIfPathIsNotConfigured = function() {
     }
 };
 
-exports.version = "1.30.0";
+exports.version = "1.31.0";