Last week, I announced the MediaWiki 1.20 release candidate that I created on wikitech-l (http://lists.wikimedia.org/pipermail/wikitech-l/2012-September/063226.html shortened: http://hexm.de/lo).
A few people have downloaded it and, so far, I don't know of any problem reports, but maybe that is because the people on wikitech-l are already using newer versions MediaWiki.
Today I'd like to get more people looking at it, so I'm announcing it on mediawiki-l and mwusers.com.
Download: http://mah.everybody.org/mediawiki-1.20.0beta0.tar.gz
Release Notes: https://gerrit.wikimedia.org/r/gitweb?p=mediawiki/core.git;a=blob_plain;f=RE... shortened: http://hexm.de/ln
GPG signatures: http://mah.everybody.org/mediawiki-1.20.0beta0.tar.gz.sig
Public key: http://mah.everybody.org/contact-info http://pgp.mit.edu:11371/pks/lookup?op=vindex&search=0x7956EE477F901A30
(If there there is anyone with a PGP key in the Philadelphia/New York City area who can sign my key, let me know. I have to get some more signatures.)