diff --git a/CHANGELOG.md b/CHANGELOG.md
index 15785000f7..5264c794c4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -20,6 +20,7 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 ### Added
 - `setFee` and `setFeePerSnarkCost` for `Transaction` and `PendingTransaction` https://github.com/o1-labs/o1js/pull/1968
 - Doc comments for various ZkProgram methods https://github.com/o1-labs/o1js/pull/1974
+- `MerkleList.popOption()` for popping the last element and also learning if there was one https://github.com/o1-labs/o1js/pull/1997
 
 ### Changed
 - Sort order for actions now includes the transaction sequence number and the exact account id sequence https://github.com/o1-labs/o1js/pull/1917