diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4328812c71..43b7ca8aa0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,10 @@
 
 ## master (unreleased)
 
+### New features
+
+* [#474](https://github.com/rubocop/rubocop-performance/pull/474): Add new `Performance/StringBytesize` cop. ([@viralpraxis][])
+
 ## 1.22.1 (2024-09-17)
 
 ### Bug fixes
@@ -555,3 +559,4 @@
 [@tagliala]: https://github.com/tagliala
 [@earlopain]: https://github.com/earlopain
 [@parkerfinch]: https://github.com/parkerfinch
+[@viralpraxis]: https://github.com/viralpraxis
diff --git a/changelog/new_string_bytesize_cop.md b/changelog/new_string_bytesize_cop.md
deleted file mode 100644
index 956fa63f69..0000000000
--- a/changelog/new_string_bytesize_cop.md
+++ /dev/null
@@ -1 +0,0 @@
-* [#474](https://github.com/rubocop/rubocop-performance/pull/474): Add new `Performance/StringBytesize` cop. ([@viralpraxis][])