diff --git a/CHANGELOG.md b/CHANGELOG.md
index cc73d744f6..0991275410 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,15 @@
 
 ## master (unreleased)
 
+### Bug fixes
+
+* [#454](https://github.com/rubocop/rubocop-performance/issues/454): Fix false positives for `Performance/BigDecimalWithNumericArgument` when using BigDecimal 3.1+. ([@koic][])
+
+### Changes
+
+* [#385](https://github.com/rubocop/rubocop-performance/issues/385): Disable `Performance/BlockGivenWithExplicitBlock` by default. ([@earlopain][])
+* [#407](https://github.com/rubocop/rubocop-performance/issues/407): Make `Performance/DoubleStartEndWith` aware of safe navigation. ([@earlopain][])
+
 ## 1.21.1 (2024-06-16)
 
 ### Bug fixes
diff --git a/changelog/change_disable_block_given.md b/changelog/change_disable_block_given.md
deleted file mode 100644
index 535858d8cb..0000000000
--- a/changelog/change_disable_block_given.md
+++ /dev/null
@@ -1 +0,0 @@
-* [#385](https://github.com/rubocop/rubocop-performance/issues/385): Disable `Performance/BlockGivenWithExplicitBlock` by default. ([@earlopain][])
diff --git a/changelog/change_make_double_start_end_aware_safe_navigation.md b/changelog/change_make_double_start_end_aware_safe_navigation.md
deleted file mode 100644
index 55945f4011..0000000000
--- a/changelog/change_make_double_start_end_aware_safe_navigation.md
+++ /dev/null
@@ -1 +0,0 @@
-* [#407](https://github.com/rubocop/rubocop-performance/issues/407): Make `Performance/DoubleStartEndWith` aware of safe navigation. ([@earlopain][])
diff --git a/changelog/fix_false_positives_for_performance_big_decimal_with_numeric_argument.md b/changelog/fix_false_positives_for_performance_big_decimal_with_numeric_argument.md
deleted file mode 100644
index 90b645c23d..0000000000
--- a/changelog/fix_false_positives_for_performance_big_decimal_with_numeric_argument.md
+++ /dev/null
@@ -1 +0,0 @@
-* [#454](https://github.com/rubocop/rubocop-performance/issues/454): Fix false positives for `Performance/BigDecimalWithNumericArgument` when using BigDecimal 3.1+. ([@koic][])