diff --git a/docs/pages/release_notes.md b/docs/pages/release_notes.md
index 6a87a10f65..575350baca 100644
--- a/docs/pages/release_notes.md
+++ b/docs/pages/release_notes.md
@@ -145,4 +145,5 @@ Other languages are equivalent.
 *   [#1041](https://github.com/pmd/pmd/pull/1041): \[java] Make BasicProjectMemoizer thread safe. - [bergander](https://github.com/bergander)
 *   [#1042](https://github.com/pmd/pmd/pull/1042): \[java] New security rule: report usage of hard coded IV in crypto operations - [Sergey Gorbaty](https://github.com/sgorbaty)
 *   [#1044](https://github.com/pmd/pmd/pull/1044): \[java] Fix for issue #816 - [Akshat Bahety](https://github.com/akshatbahety)
+*   [#1048](https://github.com/pmd/pmd/pull/1048): \[core] Make MultiThreadProcessor more space efficient - [Gonzalo Exequiel Ibars Ingman](https://github.com/gibarsin)