Changed, Drag Linedefs/Vertices/Sectors/Things modes: line length labels are now displayed the same way as in Draw modes.
Changed, Drag Linedefs/Vertices/Sectors/Things modes: "lock movement to cardinal directions" mode (Alt-Shift-Drag) now locks movement in 4 directions instead of 8 and doesn't snap map elements to nearest grid intersections when they are not aligned to it.
Added, Visual mode, GZDoom, DECORATE: FORCEXYBILLBOARD flag is now supported.
Added, Visual mode, GLOOME, DECORATE: FLOORSPRITE, CEILSPRITE, WALLSPRITE, ROLLSPRITE and STICKTOPLANE flags are now supported (implementation is somewhat broken ATM and probably doesn't work the same way as in GLOOME, because Windows build with most these features is nowhere to be found...).
Fixed, Visual mode: in some cases Thing brightness was calculated incorrectly.
Updated ZDoom_DECORATE.cfg.
Changed, General interface: all main menu toolbars are now visible when starting the editor for the first time.
Changed, General interface: "Prefabs" and "Edit" menus are now hidden when no map is loaded.
Changed, General interface: moved "Dynamic Grid Size" menu item to the "Edit" menu, also moved the button to the matching position on the toolbar.
Changed, General interface: changed "Show Comments" menu item position in the "View" menu, also moved the button to the matching position on the toolbar.
Game configurations: removed "gamedetect" block, because it was unused by the editor.
Updated documentation ("Map Format Settings" page).
Game configurations: removed "GZDoom only" from FraggleScript actions (because FraggleScript can be used in ZDoon).
Internal: fixed a couple of bugs in DebugConsole.StopTimer();
Changed, Linedef/Thing Info panel: when displaying a linedef/thing with an ACS special, which uses a script with arguments, appropriate action argument names are replaced with script argument names.
Changed, Sector/Linedef/Thing Edit windows, Comments tab: window is no longer closed when pressing Enter while editing a comment. Newline is inserted instead.
Changed: Script Editor window is now toggled to normal state when pressing "Show Script Editor" button if said window was already open, but minimized.
Fixed: in some cases action arguments were not cleared during setup when displaying multiple map elements with mixed argument values.
Internal: added ArgumentsControl.
General interface: selection info is now always displayed.
Visual mode: you can now hold Alt-Shift or Ctrl-Alt while selecting sidedefs to stop selecting connected sidedefs when already (un)selected sidedef is encountered.
Added, Numeric Textbox: you can now use "+++" and "---" prefixes to incrementally increase or decrease result values by given value.
Fixed, Numeric Textbox: fixed a potential divide by zero exception when using "/" prefix in numeric textboxes with decimal input enabled.
Fixed, Thing Info panel: relative z position of things with "+SPAWNCEILING" flag was incorrect.
Changed: Update checker now displays messages using MessageBoxes when called manually.
Map Analysis: changed result descriptions for Unknown Texture and Missing Texture checks.
Doom map format: renamed "Secret" linedef flag to "Shown as 1-sided on automap".
Updated ZDoom_DECORATE.cfg (A_RadiusGive stuff).
DECORATE: added "//$ArgNEnum" special comment. It can be used to specify an enum to use with the argument.
Documentation: updated "Action Argument Settings" and "DECORATE keys" pages.
Game Configurations: updated things in ZDoom "Bridges" category to use argument types 23 and 24.
Documentation: added "Action Argument Settings" page, updated "Basic Settings", "Map Format Settings", "Linedefs Settings" and "Things Settings" pages in Configurations -> Game Configurations group.
Documentation: updated "DECORATE keys" page.
Game configurations, Strife, Doom map format: several thing flags were named incorrectly.
Game configurations, Strife, Doom map format: several linedef flags were listed as "Unknown".
Edit Selection mode: 15-degree rotation steps require more precision...
MAPINFO: added "DoomEdNum" and "SpawnNums" blocks support.
MAPINFO: added "#include" directive support.
MAPINFO: added "$gzdb_skip" special comment support.
DECORATE: "spawnthing" Game Configuration block is now updated using "SpawnID" actor property.
Game configurations: added "class" property to the most of ZDoom things.
Actions: removed "Reload MAPINFO" action.
Documentation: merged "GLDEFS and MODELDEF support", "(Z)MAPINFO support" and "TEXTURES support" topics into "(G)ZDoom text lumps support", added info about the other text lumps GZDB can use.
Renamed the default program configuration file from "GZBuilder.cfg" to "GZBuilder.default.cfg".
Changed the default keys of "Move Thing Left\Right\Forward\Back" actions to arrow keys (was Ctrl + arrow keys).
Updated documentation: added "Command Line Parameters" topic.
Visual mode: added support for "Transfer Floor Brightness" (210) effect.
Visual mode: added support for "Transfer Ceiling Brightness" (211) effect.
Visual mode: changed the way thing brightness is calculated. Should be closer to GZDoom now.
Sector Edit Form: you can now enter "++" or "--" into "Height Offset" input to raise or lower sectors by their height.
Cosmetic fix in ZDoom_linedefs.cfg.
Changed, Numeric textboxes: trailing zeros are no longer displayed to reduce visual noise.
Fixed, paired numeric controls: in some cases culture-specific decimal separator was not used.
Fixed, map loading: inability to initialize D3D device is now handled a bit more gracefully.
Fixed, main toolbar context menu: we should suppress context menu closing only when user clicks on a menu item while holding Shift key.
Fixed, Game configurations: several Skulltag things were not included in many Zandronum game configurations.
Added, Game configurations: added "thingclasshelp" property. It's used to open a website when thing class name is clicked in the Thing Edit form.
Changed, "Raise/Lower sector to nearest" action: 3d floors are now taken into account when using the action on things.
Updated documentation.
Info panels: float values are now formatted regardless of current CultureInfo (e.g. decimal separator is now always dot). Also, they are no longer clamped to 2 decimal places.
Updated ZDoom_ACS.cfg.
Changed, Thing Edit Form (UDMF): rearranged Action and Identification groups to match the rest of the Edit forms.
Changed: Classic Thing Edit form no longer has tabs.
Fixed, Visual mode, UDMF: sector geometry cache was not updated after using "Match Brightness" and "Change Brightness" actions on ceilings, so the changes made by them were not visible when using Classic modes in "View Ceiling Textures" mode.
Fixed, Visual mode, UDMF: "Match Brightness" and "Change Brightness" actions set brightness incorrectly in some cases.
Fixed: ACS script names gathering logic was unable to process relative #include and #import paths (like '#import "..\acs\qtilt.acs"').
Updated ZDoom_DECORATE.cfg.
Visual mode: when "Synch camera position" setting is enabled, and the cursor was outside of a sector when entering Visual mode, camera height is now adjusted based on nearest sector (previously the height was adjusted only when the cursor was inside of a sector).
"Auto-align textures X", "Auto-align textures X and Y" actions, UDMF: alignment source sidedef part's horizontal scale is now applied to all aligned sidedefs.
Visual mode, UDMF: 'lightfog' flag is now automatically updated when changing sidedef brightness or using "Match Brightness" action.
Linedefs mode: added "Update 'lightfog' flag" menu item.
Game configurations: cosmetic changes in UDMF linedef flag names.
Updated ZDoom_DECORATE.cfg.
Fixed, long texture names support: in some cases long texture names were not processed correctly when pasting map geometry.
Fixed, Visual mode: in some cases combined sidedef brightness was calculated incorrectly. Also, MAPINFO FadeColor and OutsideFogColor properties are now taken into account.
Hexen_linedefs.cfg: "Door Raise" and "Door Locked Raise" used incorrect enums for "Close Delay".
Fixed, Visual mode, UDMF: when several wall parts were selected, only one could be dragged with the mouse.
Fixed, Visual mode, Auto-align textures, UDMF: TEXTURES scale is now taken into account when aligning textures.
Fixed, Visual mode, Auto-align textures (Y), UDMF: nearest height matching is now applied to non-wrapped middle backsides.
Cosmetic changes in ZDoom_ACS.cfg.
Sound Environment Mode: sound environments can now be picked by editing sound environment things.
Sound Environment Mode: detected sound environments names are now used as item names in the tree view.
Fixed, Classic modes: incorrect texture was used as unknown floor/ceiling texture (I broke this in r2199).
Fixed, MainForm: reverted MainForm.UpdateToolStripSeparators. By making it look simpler I made it work more buggy...
Updated ZDoom_DECORATE.cfg.
Moved stuff around a bit in PK3Reader. Will it fix random crashes? I dunno, a least I was no longer able to trigger them...
Recompiled SharpCompress library using VS 2008, so it no longer references .net 4.0 stuff. Will it fix random crashes? See above.