At the eleventh hour ( read as after this little Moobeat went to sleep for the night ), Riot stumbled upon a pretty devious bug that prevented them from going through with the planned Monday Night to Tuesday Morning patching to update the game to include all this wonderful new content from the Ziggs Patch.
Summoners,- Filthy Animals, Network Ops Tech, via the official forums.
We will be scheduling the release of the Ziggs Patch for early February. We have discovered a potentially serious issue with the update, and – as part of our continued commitment to providing the best possible game experience – we want to take the time make sure conditions are perfect for this rambunctious yordle’s debut on the Fields of Justice.
We will have further details on the availability of the Ziggs Patch as they become available. Stay tuned for more updates in the near future!
Thanks for your patience, and thanks for playing League of Legends.
RiotDaemon stepped in on another thread to chime in with just a little more information about the bug and how Riot is likely to proceed
official forumsI certainly understand it is frustrating to not have the patch notes yet, so I will shed some light on exactly what happened.
We found what was considered a blocker bug that would severely impact many players enjoyment of league of legends, so rather than pushing the patch live and causing lots of players to have a bad experience, we wanted to fix the issue before it went live.
Here is why the patch notes aren't out yet:
We are preparing two different patches for everyone, one with everything we had planned to go out and one with several things stripped out of the patch. The first option is what we hope to go with if we can fix the blocker bug quickly, while the second option is what we will use if we can't fix the issue quickly.
The patch notes aren't out because we haven't commited to using either patch yet.