This happened:
Bugfixes
erlang mode: Fix mode crash when trying to read an empty context.
comment addon: Fix broken behavior when toggling comments inside a comment.
xml-fold addon: Fix a null-dereference bug.
Page up and page down now do something even in single-line documents.
Fix an issue where the cursor position could be off in really long (~8000 character) tokens.
New features
javascript mode: Better indentation when semicolons are missing. Better support for TypeScript classes, optional parameters, and the type keyword.
The blur and focus events now pass the DOM event to their handlers.