-* BREAKING CHANGE: Legacy skins Simple, MySkin and Standard were all removed.
- Nostalgia was moved to an extension.
+* BREAKING CHANGE: Legacy skins Simple, MySkin, Chick, Standard and Nostalgia
+ were all removed. (Nostalgia was moved to an extension.) The SkinLegacy and
+ LegacyTemplate classes that supported them were removed as well and are now a
+ part of the Nostalgia extension.