Here's whatsnew:
-Many improvements in the TV emulation; to enable all the new features, use OpenGL mode and set the display quality to 3 (requires OpenGL 2.0 or newer and shader support)
-Added a tedmon-like monitor to the debugger; it supports all the commands, including assemble, but there are also some improvements and additional features (use ? to print the list of commands, or ? N for help on command N)
-It is now possible to set breakpoints on TED video positions in the debugger
-Trace command in the monitor for logging CPU instructions to a text file; when debugging the main CPU, the TED video position at the first cycle of each opcode is also logged
-Light pen emulation
-Hardware level 1526/MPS-802 printer emulation
-The file I/O ROM module now also includes a tape turbo; to enable it, set $0647 to $17, $27, $37, or $47 to select speed (from slowest to fastest), and use device 7 when saving
-Tape playback and recording can be sent to the sound output
-The RAM startup pattern has been made configurable
-Minor TED emulation improvements
-Various bug fixes

Get it here:
http://plus4emu.sourceforge.net/

-Trebor