diff --git a/sponsoredTransactions/backend/CHANGELOG.md b/sponsoredTransactions/backend/CHANGELOG.md
index c5ede65f..31d7ec01 100644
--- a/sponsoredTransactions/backend/CHANGELOG.md
+++ b/sponsoredTransactions/backend/CHANGELOG.md
@@ -1,5 +1,8 @@
 ## Unreleased changes
 
+- Change to use the `contract-client` from the Rust SDK.
+- Add reject reason decoding of reverted transactions during the dry-run.
+
 ## 2.0.0
 
 - Use `AccountSignatures` type for the input parameter to the `permit` function. The sponsored transaction smart contract uses the `check_account_signature` host function with the `AccountSignatures` type as input parameter to verify signatures in the smart contract now.