diff --git a/Docs/Changelog_sm5.txt b/Docs/Changelog_sm5.txt
index 4e4ef035af..cf0c250110 100644
--- a/Docs/Changelog_sm5.txt
+++ b/Docs/Changelog_sm5.txt
@@ -8,6 +8,11 @@ ________________________________________________________________________________
 StepMania 5.0 beta 2 | 20130???
 --------------------------------------------------------------------------------
 
+2013/05/20
+----------
+* [NotesLoaderSM] New algorithm for converting negative BPMs and stops to
+  warps, more closely matching the behavior of old StepManias.
+
 2013/03/24
 ----------
 * [MusicWheel] Add the ChangeSort method to the Lua interface to allow the