V1.0.0.121

The patch was due to be released on the week of the 4th of July, but it was delayed several days because of the finding of bugs. Riot ultimately decided to release first the changes to the PVP.net platform only. As of this time, the patch hasn't been released.

Release Notes PVP.net v1.38.30
The patch to the PVP.net platform were released before the rest of the patch on Thursday, July 7th.
 * PVP.net patcher now has a “Region” selector. Players may choose language (English, German, French, Spanish, and Polish) and region (NA, EU West, EU Nordic + East)
 * Updated the filter on summoner name creation and change
 * Fixed a bug with multiple error pop-ups appearing in PVP.net
 * Updated UI for the “Submit Log” interface
 * Updated Custom Game Lobby interface
 * Updated UI for Custom Game creation
 * Added default names to Custom Game creation.
 * Custom Games now have a “Quit” button in Champion Select. Players will no longer have to log back into PVP.net to cancel a custom game in Champion Select.
 * Removed warnings for leaving Battle Training during Champion Select
 * Updated Champion filters in the Summoner Profile
 * Updated UI when viewing other players’ Mastery Pages
 * Fixed a bug that could cause you to overwrite your own Mastery Pages
 * Fixed a bug with viewing other players’ Rune Pages
 * Added multiple rune purchases to the store. Players can now use the “+” and “-“ signs to choose how many runes of a certain type to buy, up to 9
 * Multiple bug-fixes for the PVP.net store
 * Updated matchmaking to make level 30s matching with non-30s rarer