diff --git a/CHANGELOG.md b/CHANGELOG.md
index eeb675c6df..290d916bb5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,8 @@
 
 ## master (unreleased)
 
+## 2.21.2 (2023-09-30)
+
 ### Bug fixes
 
 * [#1126](https://github.com/rubocop/rubocop-rails/pull/1126): Fix a false positive for `Rails/RedundantActiveRecordAllMethod` when using some `Enumerable`'s methods with block argument. ([@koic][])
diff --git a/docs/antora.yml b/docs/antora.yml
index 9e0ff48acb..a5c58943de 100644
--- a/docs/antora.yml
+++ b/docs/antora.yml
@@ -2,6 +2,6 @@ name: rubocop-rails
 title: RuboCop Rails
 # We always provide version without patch here (e.g. 1.1),
 # as patch versions should not appear in the docs.
-version: ~
+version: '2.21'
 nav:
   - modules/ROOT/nav.adoc
diff --git a/docs/modules/ROOT/pages/cops_rails.adoc b/docs/modules/ROOT/pages/cops_rails.adoc
index 01133267c7..c328af841f 100644
--- a/docs/modules/ROOT/pages/cops_rails.adoc
+++ b/docs/modules/ROOT/pages/cops_rails.adoc
@@ -4324,6 +4324,25 @@ users.where(id: ids)
 user.articles.order(:created_at)
 ----
 
+==== AllowedReceivers: ['ActionMailer::Preview', 'ActiveSupport::TimeZone'] (default)
+
+[source,ruby]
+----
+# good
+ActionMailer::Preview.all.first
+ActiveSupport::TimeZone.all.first
+----
+
+=== Configurable attributes
+
+|===
+| Name | Default value | Configurable values
+
+| AllowedReceivers
+| `ActionMailer::Preview`, `ActiveSupport::TimeZone`
+| Array
+|===
+
 === References
 
 * https://rails.rubystyle.guide/#redundant-all
@@ -6571,7 +6590,7 @@ end
 
 | Pending
 | Yes
-| Yes
+| No
 | 2.21
 | -
 |===
@@ -6590,8 +6609,8 @@ render 'foo', status: :continue
 render status: 100, plain: 'Ruby!'
 
 # good
-render status: :continue
-render status: 100
+head :continue
+head 100
 ----
 
 === Configurable attributes
diff --git a/lib/rubocop/rails/version.rb b/lib/rubocop/rails/version.rb
index 76ac997773..9e9f054da0 100644
--- a/lib/rubocop/rails/version.rb
+++ b/lib/rubocop/rails/version.rb
@@ -4,7 +4,7 @@ module RuboCop
   module Rails
     # This module holds the RuboCop Rails version information.
     module Version
-      STRING = '2.21.1'
+      STRING = '2.21.2'
 
       def self.document_version
         STRING.match('\d+\.\d+').to_s
diff --git a/relnotes/v2.21.2.md b/relnotes/v2.21.2.md
new file mode 100644
index 0000000000..b6bb966b43
--- /dev/null
+++ b/relnotes/v2.21.2.md
@@ -0,0 +1,11 @@
+### Bug fixes
+
+* [#1126](https://github.com/rubocop/rubocop-rails/pull/1126): Fix a false positive for `Rails/RedundantActiveRecordAllMethod` when using some `Enumerable`'s methods with block argument. ([@koic][])
+* [#1121](https://github.com/rubocop/rubocop-rails/issues/1121): Fix an error for `Rails/SelectMap` when using `select(:column_name).map(&:column_name)` without receiver model. ([@koic][])
+* [#1119](https://github.com/rubocop/rubocop-rails/issues/1119): Fix an incorrect autocorrect for `Rails/RedundantActiveRecordAllMethod`  when `all` has parentheses. ([@masato-bkn][])
+* [#1130](https://github.com/rubocop/rubocop-rails/issues/1130): Fix crash for `Rails/UniqueValidationWithoutIndex` with bare validate. ([@jamiemccarthy][])
+* [#1124](https://github.com/rubocop/rubocop-rails/issues/1124): Fix false positives for `Rails/RedundantActiveRecordAllMethod` when receiver is not an Active Record model. ([@koic][])
+
+[@koic]: https://github.com/koic
+[@masato-bkn]: https://github.com/masato-bkn
+[@jamiemccarthy]: https://github.com/jamiemccarthy