https://www.postgresql.org/developer/beta/ indicates that the current PG 10
beta is beta2; however, beta3 was released on August 10.
Links to update:
https://www.postgresql.org/about/news/1771/
https://www.postgresql.org/ftp/source/v10beta3/
I imagine there'll be a beta4, but it's not clear when, and several issues
were fixed in beta3. Most people will notice on the front page, but people
can still visit the testing page direct from a search.
Best regards,
--
Laurence "GreenReaper" Parry