v12.4.22

• Games in zstd packs that hang at startup (ASTRO BOT and others): the zstd runtime (ampr-emu-ng) that went into packed games could be 0.3.2, and versions before 0.3.4 hang some games at startup. New packs now get 0.4.0 or newer, and so does Add the AMPR emulator when you pick ampr-emu-ng.
• Update the zstd runtime: open a game that's already in zstd packs in Convert. If its runtime is old, missing or the LZ4-only ampr_emu, a new button puts the newest ampr-emu-ng in. A folder is changed in place. An image on the PS5 isn't changed: the runtime goes in a ShadowMount+ backport folder. Not yet tried on a console.
• ShadowMount+ emulator check: with emulator updates on, ShadowMount+ puts its own libSceAmpr.sprx into every game in place of the game's. If that file can't run zstd packs, Convert now says so for a game on the PS5, and how to turn it off.
• Security update: updated the SSH library used for SFTP connections to fix two low-severity security issues. Nothing changes in how the app works.