diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8dda96507c..a9eacad0b1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,15 @@
 
 ## master (unreleased)
 
+### Bug fixes
+
+* [#289](https://github.com/rubocop/rubocop-performance/issues/289): Fix a false positive for `Performance/StringIdentifierArgument` when using namespaced class string argument. ([@koic][])
+* [#288](https://github.com/rubocop/rubocop-performance/pull/288): Recover Ruby 2.4 code analysis using `TargetRubyVersion: 2.4`. ([@koic][])
+
+### Changes
+
+* [#287](https://github.com/rubocop/rubocop-performance/pull/287): **(Breaking)** Drop Ruby 2.5 support. ([@koic][])
+
 ## 1.13.3 (2022-03-05)
 
 ### Bug fixes
diff --git a/changelog/.gitkeep b/changelog/.gitkeep
deleted file mode 100644
index e69de29bb2..0000000000
diff --git a/changelog/change_drop_ruby_2_5_support.md b/changelog/change_drop_ruby_2_5_support.md
deleted file mode 100644
index 7dfac90e4a..0000000000
--- a/changelog/change_drop_ruby_2_5_support.md
+++ /dev/null
@@ -1 +0,0 @@
-* [#287](https://github.com/rubocop/rubocop-performance/pull/287): **(Breaking)** Drop Ruby 2.5 support. ([@koic][])
diff --git a/changelog/fix_a_false_positive_for_performance_string_identifier_argument.md b/changelog/fix_a_false_positive_for_performance_string_identifier_argument.md
deleted file mode 100644
index a1222b97a9..0000000000
--- a/changelog/fix_a_false_positive_for_performance_string_identifier_argument.md
+++ /dev/null
@@ -1 +0,0 @@
-* [#289](https://github.com/rubocop/rubocop-performance/issues/289): Fix a false positive for `Performance/StringIdentifierArgument` when using namespaced class string argument. ([@koic][])
diff --git a/changelog/fix_recover_ruby_24_analysis.md b/changelog/fix_recover_ruby_24_analysis.md
deleted file mode 100644
index 80f95ede46..0000000000
--- a/changelog/fix_recover_ruby_24_analysis.md
+++ /dev/null
@@ -1 +0,0 @@
-* [#288](https://github.com/rubocop/rubocop-performance/pull/288): Recover Ruby 2.4 code analysis using `TargetRubyVersion: 2.4`. ([@koic][])