Provide a general description of the code changes in your pull request... were there any bugs you had fixed? If so, mention them. If these bugs have open GitHub issues, be sure to tag them here as well, to keep the conversation linked together.
If there's anything else that's important and relevant to your pull request, mention that information here. This could include benchmarks, or other information.
If you are updating any of the CHANGELOG files or are asked to update the CHANGELOG files by reviewers, please add the CHANGELOG entry at the top of the file.
Finally, if your pull request affects documentation or any non-code changes, guidelines for those changes are available here
Thanks for contributing to Rails!