rails--rails/activestorage/CHANGELOG.md

• Use after_destroy_commit instead of before_destroy for purging attachments when a record is destroyed.

  Hiroki Zenigami

• Force :attachment disposition for specific, configurable content types. This mitigates possible security issues such as XSS or phishing when serving them inline. A list of such content types is included by default, and can be configured via content_types_to_serve_as_binary.

  Rosa Gutierrez

Rails 5.2.0.beta2 (November 28, 2017)

• Fix the gem adding the migrations files to the package.

  Yuji Yaginuma

Rails 5.2.0.beta1 (November 27, 2017)

• Added to Rails.

  DHH