diff --git a/CHANGELOG.md b/CHANGELOG.md
index a4039a1e..556633e1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,9 @@
   by @Legimity).
 - PowerShell completions now work with aliases of the `task` command, not just
   the `task` binary itself (#2852 by @kojiishi).
+- Fixed task names containing certain characters (e.g. `\`, `_`, `^`) leaking
+  into checksum/timestamp filenames, breaking `sources:`/`generates:`
+  up-to-date detection (#2886 by @s3onghyun).
 
 ## v3.51.1 - 2026-05-16