CHANGELOG.md in timber-2.6.0.pre.beta1 vs CHANGELOG.md in timber-2.6.0.pre.beta2

@@ -5,17 +5,24 @@
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
 
+## [2.6.0-beta2] - 2017-11-16
+
+### Fixed
+
+  - Fixes an issue where a reference to the current custom context map was being capture during log line creation and then later self-modifying to make the context invalid.
+
 ## [2.6.0-beta1] - 2017-10-28
 
 ### Fixed
 
   - Encoding and rewind issues for file upload parameters have been resolved. Timber
     improved attribute normalization across all contexts and events, ignoring binary
     values like this in general.
+  - Fixes `::ActionDispatch::ExceptionWrapper` version detection preventing the `undefined method clean for #<Hash:->` error when an exception is raised in a Rack request.
 
 ## [2.5.1] - 2017-10-27
 
 ### Fixed
 
@@ -109,10 +116,11 @@
     `Timber::LogDevices::HTTP::FlushableDroppingSizedQueue` instead of a `::SizedQueue`. In the
     event of extremely high volume logging, and delivery cannot keep up, Timber will drop messages
     instead of applying back pressure.
 
 
-[Unreleased]: https://github.com/timberio/timber-ruby/compare/v2.6.0-beta1...HEAD
+[Unreleased]: https://github.com/timberio/timber-ruby/compare/v2.6.0-beta2...HEAD
+[2.6.0-beta2]: https://github.com/timberio/timber-ruby/compare/v2.6.0-beta1...v2.6.0-beta2
 [2.6.0-beta1]: https://github.com/timberio/timber-ruby/compare/v2.5.1...v2.6.0-beta1
 [2.5.1]: https://github.com/timberio/timber-ruby/compare/v2.5.0...v2.5.1
 [2.5.0]: https://github.com/timberio/timber-ruby/compare/v2.4.0...v2.5.0
 [2.4.0]: https://github.com/timberio/timber-ruby/compare/v2.3.4...v2.4.0
 [2.3.4]: https://github.com/timberio/timber-ruby/compare/v2.3.3...v2.3.4