Linden Lab has released the twelfth 1.20 Second Life release candidate viewer. Release candidates start counting from zero, so the first one in the series is RC0.
Linden Lab says this release candidate cycle will be extended, and some of the skinning project that was slated to come after 1.20 is being moved up, so that users will be able to switch the UI skin before this becomes the official viewer, rather than in some unspecified future release.
So, there will be a couple more release candidates before 1.20 becomes official, and it is pitched to take a bit longer between them.
This edition fixes some more crashes and freezes, but still has that nasty buffer-rendering offset glitch that afflicts snapshots, among other things.