DL4 MkII 1.01 (released July 5, 2022) includes new improvements and bug fixes and is strongly recommended for all DL4 MkII users.   How do I update DL4 MkII to 1.01? Make sure you've installed Line 6 Updater 1.25 or later (released April 7, 2022). Earlier versions can't see DL4 MkII. Mac: https://line6.com/software/readeula.html?rid=11223 IMPORTANT! On newer macOS versions, your computer may display a pop-up reading "Line 6 Updater.pkg can’t be opened because Apple