Merge pull request #713 from postmanlabs/feature/changelog-update

Update CHANGELOG.md with changes done in this release.

Author: VShingala

CHANGELOG.md

@@ -2,6 +2,17 @@
 
 ## [Unreleased]
 
+### Added
+
+- Fixed issue [#31](https://github.com/postmanlabs/openapi-to-postman/issues/31#issuecomment-1481258315) Added support for enableOptionalParameters option in v2 interface.
+
+### Fixed
+
+- Fixed issue [#11835](https://github.com/postmanlabs/postman-app-support/issues/11835) where Accept header was not present in Example request.
+- Fixed issue where conversion was failing with RangeError in case of non-schema circular refs.
+- Fixed issue where conversion was failing with TypeError by safer lodash functions usage.
+- Fixed issue where TypeErrors were happening for null/undefined params.
+
 ## [v4.11.0] - 2021-04-14
 
 ### Added