(I have no time to play the game much.. and other projects to work on too, so I cannot check everything)

Game version: 2.12

Upcoming features

Facts: update of names, add categories, impl diffing tool.
Node Tree: Diffing tool.
Items: Impl new Stats format serializer, simplify interface, add tweakdb support to guide weapon creation.
Fun Stuff: remove vehicle spawning (cannot work atm), add "Equip Silverhand Arm".
Don't hesitate to suggest new features, I have a few weeks free ahead.

Known issues

Persistent Data parsing is broken
Editing objects is limited to already-defined fields for files that were not save in 2.12.

(.1) Better TweakDBID widget.
(.1) Added modded classes support.
(.1) Updated Fact and TweakDBID lists.
Updated cp object blueprints for game version 2.12 (enums updated)
Fixed inventory not being saved when it had newly defined items.
Reworked CSystem serialization to not init object fields from blueprints if version != 2.12.

(.1) Updated cp object blueprints for game version 1.6 (enums updated) and fixed CItemData serialization.
Updated cp object blueprints for game version 1.5 (enums updated)
Reworked core lib to prepare for new rtti system.
Also, the core lib is now called redx instead of cpinternals.

(.14b) Hotfix, stats are being reworked by cdpr.
(.14) Updated cp object blueprints for game version 1.3 (enums updated)
(.13b) Hotfix, previous blueprints dump was incorrect.
(.13) Updated cp object blueprints for game version 1.23 (enums updated)
(.12) Updated cp object blueprints for game version 1.2 (however enums are being reworked and have not been updated).
(.11) Fix: Facts table 'delete' button wasn't working.
(.10) DB: TDBIDs update from gibbed.
(.9) Hotfix: PS4w support was broken.
(.8) Hotfix (#19): SKIN copy/paste was no longer working since the introduction of the customization data tab
(.7) Update for game version 1.1 (best practice: update your saves in-game first)
(.6) Fix: The game expects the FactsTable to be sorted by hash to work.
(.5) Fix (#14): re-enable "add new entry" in most character customization arrays
(.4) Hot Request: new constant stats are now initialized by default, the warning about unknown default value wasn't clear enough for the average user.
(.3) Added FactsDB
(.2) Hot Request: better tdbid combo entries for quick search (prefix-less), + enum properties
Fun Stuff tab: change all already spawned vehicles near you (includes all playable and non-playable vehicles, Basilisk!)
UI: some inventories now have names

(.2) HotFix UI: "unknown value" warning showing up when it isn't supposed to.
(.2) ps4w: quest item flags are slightly different, "unflag all" now clears 3 bits.
UI: "make legendary" button in the Item widget.
UI: God mode system editor reintroduced.
UI: Dynamic Array properties now have an "insert" button.
UI: Drag&drop had a null-character related issue.
UI: minor changes (sub-inventory name for V, default property...).
Experimental: hidden .buffer (non cr2w) archive file draft editor (drag&drop a .buffer file to try out).
CObject: fields definition is now hard-coded with a dumped DB (thanks to https://github.com/WopsS/RED4ext and its playground)
CEnumProperty: enums have been dumped too. The previous dump was incomplete.
Temporary Fix: Properties' actual default values are unknown. If they are not serialized in, you'll be warned that the current value widget is only displaying the editor's own default value (zero).

(.2) HotFix: CObject BPs auto-update has been disabled as it corrupts BPs with some save files. (will be investigated)
(.2) UI: Added file drag&drop, and two quick access buttons in the open dialog (one to "saved games").
HotFix: NodeRef property wasn't reserialized properly (corruption)
Removed per-node editor behavior
Tests: All editable nodes are tested for reserialization when opening a save file
UI: Collapsing headers have been replaced by tabs
UI: More tables have resizable columns
UI: CObjects' fields which do not fit in one line are now collapsible (and collapsed by default)
CObject: properties are less memory hungry
CObject: fields ordering is now recovered using a topological sort.
Options: button to show/hide CObject field types