Google AdWords quietly released an update to the AdWords Editor, they are now at version 12.2 which brings Gmail asset-based ads, full support for promotion and video extensions, and a new budget type option for video ads.

Here are the release notes:

Gmail asset-based ads: Asset-based ads in Gmail are now fully supported in AdWords Editor.
Campaign total budgets: Video campaigns now have the option of choosing Campaign Total budget type.
Custom rules updated: New built-in custom rules are now available for structured snippet extensions and non-serving campaigns and ad groups.
Semantic location: You can now set a bid modifier to target your ads by location with AdWords Editor.
Promotion extensions: Promotion extensions are now fully supported by AdWords Editor.
Life events: “Life events” is now a category of audience targeting.
Video campaign extensions: All video campaign extensions are now supported.
Ad group level ad rotation: Ad groups can now be set to so ads rotate.
Expanded language targeting: Campaign language targeting in now available for Bengali, Tamil, and Telugu.
Forum discussion at Google+.