Summary of changes:

• Fix EX/EXRL instructions to not cause spurious PIC 3 (Tony Harminc, Fish) (#415)
• Fix E7 Prefix CCW support (Aaron Finerman, Fish)
• Fix Read Count Suffix bug causing data corruption (#575)
• Fix Locate Record Write Track Operation (Aaron Finerman, Fish) (#601)
• Fix Read Tracks CCW when chained from Prefix (Aaron Finerman, Fish) (#603)
• Fix various ICKDSF-related CCW handling bugs (Anders Edlund, Fish) (#615)
• Fix 3705 crash on attach/detach/attach (Jay Maynard)
• Fix usleep/nanosleep excessive host CPU consumption (Peter Jansen, Fish) (#589)
• Fix '--version' and '--usage' switches (Bill Lewis)
• Fix TDF file emulated tape open bug (Fish)
• Fix maketape utility to not pad binary files (Fish)
• Fix Date/time parsing issue in runtest/make-check (Peter Jansen)
• Fix dasdseq utility Large/Extended dataset truncation (Gregory, Fish) (#602)
• Fix Multi-device statement failure handling (Fish) (#604)
• Fix Hang during device detach (Fish)
• Fix Incorrect thread priority handling (Tyler Mitchell)
• Fix Occasional crash on exit (Tyler Mitchell)
• Fix Confusing/unclear shadow file messages (Fish) (#616)
• Fix cckdmap utility non-33xx dasd-type bug (Fish)
• Fix Shared devices 10-second-delay bug (Fish) (#624)
• Fix 'ENGINES' command bug (Fish) (#626)
• Fix Shutdown/exit logging (James Wekel) (#480), (#634)
• Fix Possible crash at CCKD dasd termination (Fish)
• Fix Inaccurate "Running on:" Windows name and version (Bill Lewis, Fish)
   
• New: Improved CU12, CU14 instruction performance (James Wekel) (#623)
• New: dasdls utility '-cchh' and '-nosort' options (Ian, Fish)
• New: maketape utility meta-file 'BIN' keyword support (Fish)
• New: dasdseq utility '-record' mode support (Gregory, Fish) (#614)
• New: Ability to trace only specific CCW opcodes (Fish) (#576)
• New: JSON support in HTTP server (#578)
• New: README.DAEMON document
• New: 'iconpfxs' command (Fish)
• New: Support quoted strings in storage alteration commands (Fish)
• New: Add timed statistics to instruction counting (Andrey) (#588)
• New: dyngui LCSS devnum support (Fish)
• New: Use performance cores on Apple Silicon (Enrico Sorichetti)
• New: Support 'clang' builds under Windows MSVC (Peter Jansen) (#629)
• New: Highlight 'S'evere and 'A'ction messages too (Fish)