Filter panel TV modes and filter overscan blanking work correctly again (not doing anything since b1). Extra horizontal and vertical blanking handling changed again, might cause side-effects.
NTSC horizontal long/short line artifacts are gone in TV overscan modes. NOTE: NTSC still have problems with some filter modes.
Ultra extreme debug marker colors changed.
Automatic scaling used also non-bitplanes to detect horizontal start/end. Now it matches 5.3.1.
Automatic scaling + fast drawing mode: detected topmost line was 1 line too large.
Screenshot when in non-PAL/NTSC mode memory out of bounds access fixed, caused random crashes also when entering GUI.
Fixed possible crash in fast mode drawing code if number of planes changes suddenly.
uaegfx vertical blank interrupt might have been duplicated or lost in some situations (very old bug), depending on RTG panel refresh rate setting.
Ignore V(H)POSW writes when in non-ce modes. KS V(H)POSW writes when screen mode changes caused strange side-effects, including unreliable RTG/native mode switches.
Passthrough printing fix for v4+ Windows printer drivers (untested)
This hopefully fixes SysSpeed native/RTG switching.