CHANGELOG.md in ifsc-1.5.3 vs CHANGELOG.md in ifsc-1.5.5

@@ -3,9 +3,28 @@
 All notable changes to this project will be documented in this file. The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## UNRELEASED
 
+## 1.5.5
+
+### Changed
+
+- Metadata updates
+- New Banks:
+	- HUCH : Hanamasagar Urban Co-operative Bank
+	- MDBK : Model Co-operative Bank
+	- SDTC : Shri D T Patil Co-operative Bank
+## 1.5.4
+
+### Changed
+
+- Metadata updates
+- Optimized memory consumption in php tests.
+- New Banks:
+	- KBKB : Kookmin Bank
+	- SUSB : Suco Souharda Sahakari Bank
+
 ## 1.5.3
 
 ### Changed
 
 - Metadata updates