diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0e06ff690..8286d6836 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,8 @@
 
 ## master (unreleased)
 
+## 1.30.0 (2023-10-26)
+
 ### New features
 
 - [#270](https://github.com/rubocop/rubocop-ast/pull/270): Add `BlockNode#{first,last}_argument` helpers. ([@sambostock][])
diff --git a/docs/antora.yml b/docs/antora.yml
index 6c5a3e120..942389b47 100644
--- a/docs/antora.yml
+++ b/docs/antora.yml
@@ -1,5 +1,5 @@
 name: rubocop-ast
 title: RuboCop AST
-version: master
+version: '1.30'
 nav:
   - modules/ROOT/nav.adoc
diff --git a/lib/rubocop/ast/version.rb b/lib/rubocop/ast/version.rb
index 60a32401e..f686986ba 100644
--- a/lib/rubocop/ast/version.rb
+++ b/lib/rubocop/ast/version.rb
@@ -3,7 +3,7 @@
 module RuboCop
   module AST
     module Version
-      STRING = '1.29.0'
+      STRING = '1.30.0'
     end
   end
 end