Hey all,

OOjs UI 0.13.0 was released last week. It will be in MW from 1.27.0-wmf.5+, which will be deployed to production in the regular train starting tomorrow. As there are a couple of nominal breaking changes and a deprecation, please look carefully over them to determine if they affect your code.

*Breaking changes since last release:*

- [BREAKING CHANGE] Remove aliases for OO.ui.mixins (C. Scott Ananian)

We deprecated the old names of the mixins system in v0.11.4 in June, when we adopted the new naming system. We believe we have remedied all known users of the deprecated code (VisualEditor, Echo, Flow, MobileFrontend, Graph and Citoid all have had changes made to compensate).

- [BREAKING CHANGE] Turn Element#gatherPreInfuseState into a static method (Bartosz Dziewoński)

This is a nominal breaking change; there are no known users of this feature, which we are improving for performance, cleanliness and usability; expect more soon.

*Deprecating change since last release:*

- [DEPRECATING CHANGE] SelectFileWidget: Rename dragDropUI option to showDropTarget (Ed Sanders)

We renamed the option `dragDropUI`, a boolean which controlled whether the SelectFileWidget would display a drag-and-drop target UI element, has been renamed to `showDropTarget`. The old option name still works for now, but will be removed in v0.15.0.

- [DEPRECATING CHANGE] TextInputWidget: Add getValidity function, deprecate isValid (Prateek Saxena)

Despite the naming of this function, it returned a Promise, not a boolean. The new getValidity function works better and is named sanely. The isValid() function still works for now, but will be removed in v0.15.0.

Additional details are in the full change log https://phabricator.wikimedia.org/diffusion/GOJU/browse/master/History.md;v0.13.0 . This is the first breaking change since v0.12.0 was released in July; since then there have been 252 code changes to the library by 22 developers; my thanks to all of them. If you have any further questions or need help dealing with deprecations, please let me know. As always, general library documentation is available at http://goog_969668313/mediawiki.org https://www.mediawiki.org/wiki/OOjs_UI and generated code-level documentation and interactive demos at doc.mediawiki.org https://doc.wikimedia.org/oojs-ui/master/#!/api.

Yours,