4.0.0 release (#783)

* update CHANGELOG

* update release date

* update release date again

* update release date

* add Credentials in CHANGELOG

---------

Co-authored-by: Chenna Keshava B S <21219765+ckeshava@users.noreply.github.com>

Author: khancode

CHANGELOG.md

@@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [[Unreleased]]
 
+## [4.0.0] - 2024-12-23
+
 ### Added
 - Support for the Multi-Purpose Tokens (MPT) amendment (XLS-33)
 - Add `include_deleted` to ledger_entry request