Cut 1.21.0

Author: koic

CHANGELOG.md

@@ -11,6 +11,8 @@
 
 ## master (unreleased)
 
+## 1.21.0 (2024-03-30)
+
 ### New features
 
 * [#446](https://github.com/rubocop/rubocop-performance/pull/446): Support Prism as a Ruby parser (experimental). ([@koic][])

config/default.yml

@@ -58,7 +58,7 @@ Performance/Casecmp:
   Enabled: false
   Safe: false
   VersionAdded: '0.36'
-  VersionChanged: '<<next>>'
+  VersionChanged: '1.21'
 
 Performance/ChainArrayAllocation:
   Description: >-

docs/antora.yml

@@ -2,6 +2,6 @@ name: rubocop-performance
 title: RuboCop Performance
 # We always provide version without patch here (e.g. 1.1),
 # as patch versions should not appear in the docs.
-version: ~
+version: '1.21'
 nav:
   - modules/ROOT/nav.adoc