message: chore: update changelog version
diff: @@ -5,6 +5,7 @@ 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
  +## [21.1.0-beta.1] - 2020-05-19
  ### Changed
  - Static `storage/` functions used by `UserSession` are no longer globally exported, as they are wrapped by publicly accessible `UserSession` methods. Functions that are no longer accesible are `getFileUrl`, `getFileContents`, `getFile`, `putFile`, `deleteFile`, and `listFiles`.
  - Removed various static functions that have been replaced by `UserSession` .
  