Update: Per Jeff Rubenstein (Social Media Manager, PlayStation Blog): In case you were wondering what it's all about, the operating stability of some online PS3 titles has been improved. Hope that clears things up!
It's now official- Sony has indeed skipped a retail release of PS3 Firmware 2.15 (Debug) in lieu of PS3 Firmware Update 2.17 which is out now via Network Update or below!
Download: PS3 FW Update 2.17 (US) / PS3 FW Update 2.17 (EU)
There isn't an official changelog available yet, but it appears to be primarily a bugfix update at this time.
Also, for what it's worth a little birdie told us Sony Devs already have 2.20 so perhaps another quick update will follow soon? :P
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