I've put up an rc1 release with the following bit added to the RELEASE-NOTES-1.20 file:
=== Known issues in 1.20.0 === These are issues that we're targeting to be fixed in a later release in the 1.20 series. Issues may be added or removed from this list as we see fit. For now, it is comprised of those bugs on the 1.20.0 milestone in Bugzilla.
* (bug 27202): API: Add timestamp sort to list=allimages * (bug 35894): Reports of secret key generation "hanging" on windows * (bug 37209): LinkCache doesn't currently know about this title * (bug 37714): [Regression] Incomplete log entries * (bug 38334): PHP Notice: Undefined index: href in /www/w/skins/Vector.php on line 416 * (bug 39268): [Regression] Toolbar inserts in main textarea only (instead of the focussed textarea) * (bug 40598): [Regression] jquery.localize tests are failing in IE6-8 * (bug 40632): Kill $wgCleanupPresentationalAttributes from MediaWiki core * (bug 40641): Clicking "others" in Special:Version asks to download a file * (bug 40780): searchsuggest-containing line ("containing...") doesn't include the entered text * (bug 40939): [Regression] InfoAction: Call to a member function getUserText() on a non-object
Full release notes: http://mah.everybody.org/mediawiki/1.20/RELEASE-NOTES-1.20.txt
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