Additions

• I added a whole lot of options for tabs!
  You can now have tabs split across multiple lines, have them match the label width, and more - check Preferences ➜ Navigation ➜ Tabs for new settings.
  You can also pin/unpin tabs by Ctrl+clicking them - this prevents them from being closed via “close all but this” shortcut and will put them at the beginning of tab list.
• Outline View now has more display options
  Among other things, this allows using it as a vertical tab list.

Improvements

• Object editor now displays overridden properties.
• aceEditor.debugShowToken() now toggles debug display if called again, shows more information, and looks better than before.
• When navigating to a function name that matches its script name, GMEdit won’t try to scroll down to the function declaration inside.
  (base IDE shows separate lookup items for functions/scripts, which is a little nasty)
• You can now include a note after the type in /// @is and this will be shown in auto-completion.
• You can now create Notes in 2.3 projects, which is also good because Script and Shader creation menu items were too close together.
• You can now cancel resource creation by pressing Esc when entering the name.

Types

• Added @typedef JSDoc comment!
  This allows to specify project-wide type aliases.
• Added support for tuples!
  This means that if you are turning an array with different-typed values, you can specify what each cell holds.
• Added support for specified_map, a ds_map with known key-value pair types.
  This also means that GMEdit can now check access to async_load
• Added an option to disable implicit int<->bool casts.
• Doing arr[i,k] now reasonably implies that arr is a Type[][] rather than just Type[].
• Index-based built-in types (surfaces, data structures, etc.) now accept -1 very specifically as an allowed value.
• Object/constructor type inference will now auto-type variables when assigned assets (spr = spr_some types as sprite) and also supports spr = -1 as sprite (or spr = func() as sprite) for convenience.
• Added an option to warn about redundant casts (like doing 4 as int).
• @param types now auto-apply to 2.3 named arguments and argument#/argument[] so that you don’t have specify types in both places.
• Added an option to index non-top-level variables in Create events.
  This can be handy for configuration-specific logic that’s usually in if-blocks.

Fixes

• Fixed status bar being able to make the code editor view wider than intended.
  I think this is the third time I’m fixing this specific bug since styling is complex.
• Fixed a few built-in functions having incorrect return values as far as linter is concerned.
• Lone $ no longer highlights in numeric value color.
• Fixed tabs continuing to show the “changes” marker when saving in Show Aside view.
• Fixed multi-select object properties denying to save.
• Fixed #import not working for importing items into “built-in” (int, array, etc.) types.
• Fixed multiple code editors having blinking cursors if focusing-unfocusing the editor in specific ways.
• Fixed 2.3 timeline moments being saved in 2.2 format.
• Fixed nested with recovering self type incorrectly.
• Fixed a few timing-specific issues with GMLive.js