CHANGES file should be updated for each PR

[blakedewey]

Just putting in an issue for visibility. We have had a lot of PRs merged recently and quite a few do not update the CHANGES file to reflect the PR. Just keep it in mind if you are doing a review!

[satra]

+1 - we have been sloppy about this.

[oesteban]

BTW, we've been sloppy about this again lately.

[mgxd]

@oesteban I agree - let's keep this in mind going forward