diff --git a/changelog.md b/changelog.md
index 396ce3d..266fdda 100644
--- a/changelog.md
+++ b/changelog.md
@@ -15,6 +15,7 @@
   - Module reorganization (avoid exposing `Internal` and split ElasticSearch/OpenSearch)
   - Rename `ResultsShard`'s shards to `srShards`
   - Upgrade to `Cabal` `3.0`
+  - Add `optics` definitions
 
 ```
 # Migration script