Draft back-branch release notes are up for review

[Tom Lane]

I've committed first-draft release notes for next week's
releases at

https://git.postgresql.org/gitweb/?p=postgresql.git;a=commitdiff;h=0995cefa74510ee0e38d1bf095b2eef2c1ea37c4

Please send any review comments by Sunday.

                        regards, tom lane