Fast mode drawing + HAM + left TV overscan blanking part of display caused HAM artifacts.
Fast mode shres HAM in hires or hires HAM in lores didn't include skipped pixels in HAM color calculation.
Fast mode drawing didn't mask bitplane addresses with chip ram address mask.
Fast mode Remove interlace artifacts scrolling glitches mostly fixed.
Garbage was possible in right border if bitplane ended earlier than HDIW. Fast mode only.
Filter settings should not limit display width or height in extreme or higher overscan modes, extreme (and higher) should always show whole display area.
Hardware emulated RTG boards didn't have vsync timing (b21)
DIWHIGH state restore was unreliable.
Automatic scaling (and related filters) now also work correctly if HDIW end never matches.
Filtered lores option supported again. (If Amiga mode resolution is higher than display panel mode: normally every other pixel is dropped, filtered lores mode takes average color of two pixels)
VPOS(H)W write refresh rate changes work again. (For example Wings of Death, DynaBlaster fake 60Hz). Non-CE modes only accept forwards vpos move and not out of range values.
RTG with default settings (all 4 checkboxes in left side of RTG panel unticked) display positiong fixed.
Adjusted display position and screenshot position/size slightly to better match older versions.