Yesterday, TinderBoxPushLog started showing little green squares under “Mac OSX64″ and “Linux64″. Guess what – those are OSX10.6 64bit and linux64 bit builds!

There are opt and debug builds, with incremental builds triggered by checkin during the day, full clobber builds run every night and all builds available on ftp.m.o. All the usual goodness.

If you are running on 64bit OS, and want to help, you can download the nightly builds from here and try them out. We tested like crazy in staging, so think it all works, but if you hit any problems, we’d love to hear about them, particularly with the nightly updating, or crash reporting.

As I type, the rest of the mechanics are still being rolled out to production in digestible chunks – unittests, talos, and release-build-automation are some highlights – but it is exciting to see this new-desktop-OS work rollout to production. The curious can follow the 10.6 64bit work here and the linux64 work here.

There’s been a ton of behind the scenes work to make this happen. Please send chocolate/beer/kudos to Bear, Armen, Coop, Josh. Also a special shout out to jlazaro, jdow for all the work imaging up 90 machines so these new OS came online with enough slaves in the pool-of-slaves to keep wait times healthy.