CHANGELOG.md in stellar-base-0.14.0 vs CHANGELOG.md in stellar-base-0.15.0

@@ -4,10 +4,17 @@
 file.  This project adheres to [Semantic Versioning](http://semver.org/).
 
 As this project is pre 1.0, breaking changes may happen for minor version
 bumps.  A breaking change will get clearly notified in this log.
 
-## [unreleased](https://github.com/stellar/ruby-stellar-base/compare/v0.14.0...master)
+## [unreleased](https://github.com/stellar/ruby-stellar-base/compare/v0.15.0...master)
+
+## [0.15.0](https://github.com/stellar/ruby-stellar-base/compare/v0.14.0...v0.15.0)
+### Added
+- `Stellar::Operation.change_trust` can accept `Stellar::Asset` instance for `line`
+
+### Fixed
+- Protect `Stellar::Operation.change_trust` against malicious arguments, in the event that developers pass this argument directly from user input
 
 ## [0.14.0](https://github.com/stellar/ruby-stellar-base/compare/v0.13.0...v0.14.0)
 
 ### Added
 - We now support the bump sequence operation with `Operation.bump_sequence`.