diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1b1f11f238..51f2a8e06a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -28,6 +28,7 @@ We use *breaking :warning:* to mark changes that are not backward compatible (re
 
 - [#7334](https://github.com/thanos-io/thanos/pull/7334) Compactor: do not vertically compact downsampled blocks. Such cases are now marked with `no-compact-mark.json`. Fixes panic `panic: unexpected seriesToChunkEncoder lack of iterations`.
 - [#7382](https://github.com/thanos-io/thanos/pull/7382) *: Ensure objstore flag values are masked & disable debug/pprof/cmdline
+- [#7393](https://github.com/thanos-io/thanos/pull/7393) *: *breaking :warning:* Using native histograms for grpc middleware metrics. Metrics `grpc_client_handling_seconds` and `grpc_server_handling_seconds` will now be native histograms, if you have enabled native histogram scraping you will need to update your PromQL expressions to use the new metric names.
 
 ### Removed