I'm not entirely sure because I can't compare to the 188.8.131.52 build but I think you will have these new (among others) soon
- Popup menus: Expandable folders, bitmaps and more.
- A global hot key to show Threads dialog can be specified in Options.
- Vista compatibility in both 32 and 64 bit versions.
- Macro and function properties: "Run in separate process", "Run As".
The appearance of the alpha code means that the beta should be out soon; I'd say less than a week or even THIS WEEK!