PostgreSQL 15 Beta 2 release

Hi,

The RMT[1] with the release team has set a date of June 30, 2022 for the 
PostgreSQL 15 Beta 2 release. We encourage you to try to close as many 
open items[2] prior to the release.

If you are working on patches for Beta 2, please be sure that they are 
committed no later than June 26, 2022 AoE[3].

Thanks!

John, Jonathan, Michael

[1] https://wiki.postgresql.org/wiki/Release_Management_Team
[2] https://wiki.postgresql.org/wiki/PostgreSQL_15_Open_Items
[3] https://en.wikipedia.org/wiki/Anywhere_on_Earth