The pace of Galaxy S3 Jelly Bean leaks is showing no signs of slowing down, with a new build leaking today, bringing the total up to three in the past week. The latest build, version XXDLH6 is based on Android 4.1.1 and has appeared online, where it's available as an ODIN-flashable .md5 file. This makes it easier to flash than the last leak (XXDLH4), which was only available as an OTA package. Note that this is for the international Galaxy S3 only (GT-i9300), and won't work on the U.S. models.
At this point, we're pretty sure Jelly Bean for the international Galaxy S3 isn't far off -- rumors suggest a possible IFA 2012 launch, and we wouldn't be surprised if that turned out to be the case. If you know your way around ODIN, and you're feeling brave enough to flash pre-release firmware, you'll find download links over at the source page. If not, be sure to check out our Galaxy S3 Jelly Bean feature overview.