- Highlight and selection colors are now hidden while dragging textures.

- Fixed disappearing temp file in testing parameters when "Use short paths" is checked.
- Added option for resource to exclude them from the testing parameters (for example, you may want to exclude zdoom.pk3)

Fixed a bug where flipping a line resulted in a crash, if its start vertex did not belong to any other line

- Re-enabled UDMF comments for element indices (should work with ZDBSP now)
@ Added test case for triangulation

Fixed a bug that crashes the SurfaceManager sometimes

- Increased spacing for image previews in the information panels so that long texture names can be fully displayed

- Better handling of missing UDMF TEXTMAP fields (Error now includes the element and index at which the field is missing and will not abort loading. Instead it will use a default value.)
- UDMF TEXTMAP now contains the indices of elements as comment next to the structure header.
- Thing cages in Visual Mode now also get the selection and highlight color so that a selection and highlight on things without sprite can also be seen.

Added default thing flag "dm" (1024) to game configurations so that things appear in deathmatch by default

- Progressive undo/redo system (much faster and up to 1000 undo/redo levels) Please note that several plugin functions and properties have changed.
- Some small optimizations in the classic 2D rendering (cached linedef flags, reduced some unneeded redrawing)

- Fixed a bug that allowed to use texture names longer than 8 characters, making the WAD file unusable after saving
@ added a texturenamelength config var. Setting it to higher than 8 may result in unexpected behaviour due to the speed optimizations relying on 8 char texture names and should not be changed for now.