All has been quiet on the firmware update front as of late, and PS3 owners have been stuck on 2.10 for almost three months now since the last update happened around Christmas time. However, that all changed tonight as Sony have stealthily released firmware 2.17 upon the world.
Updates:
Sony has taken the time to comment on their US Blog to reveal the update is simply for improving the "operating stability of some online PS3 titles." So, if you've been having annoying lag or dropout problems in some games maybe you’ll have more success online now.