DISK CONTROL: Enable 'Load New Disc' while disk tray is open.CORE DOWNLOADER/UPDATER: Add option to automatically backup cores when updating.and more importantly delete cores - without jumping through all the hoops of loading a core first and navigating all over the place This means we can now view bios info etc. CORE DOWNLOADER: Pressing RetroPad start on a selected, installed entry opens the Core Information menu (when using Material UI, swiping left or right triggers the same action).CORE DOWNLOADER: Installed cores are now highlighted via a symbol.CORE DOWNLOADER: Pressing RetroPad select on a Core Updater entry will now display any text in the description field of its info file.CORE DOWNLOADER: Core licenses are now shown for all entries in the Core Updater menu.

CORE DOWNLOADER: Add 'Show Experimental Cores' setting under Settings > Network > Updater.CORE DOWNLOADER: Rename 'Core Updater' to 'Core Downloader'.CORE MANAGEMENT: Improved core selection logic.

CORE MANAGEMENT: Add option to backup/restore installed cores.CORE MANAGEMENT: Add 'core management' menu (Settings -> Core).CHEEVOS/M3U: Bugfix - failed when loading M3U files with certain line endings.CHEEVOS/M3U: Bugfix - it doesn't handle trailing whitespace.

CHEEVOS/M3U: Bugfix - it didn't handle comments/directives.

CHEEVOS/M3U: Bugfix - did not handle absolute/relative paths in M3U files correctly before.

CHEEVOS: Correctly report unlocked non-hardcore achievements when hardcore is paused.

CHEEVOS: Disable hardcore mode when playing BSV file.

CHEEVOS: Support less common file extensions.

CHEEVOS: Report API errors when unlocking achievements or submitting leaderboards.

BUILTIN CORES: Builtin cores like ffmpeg and imageviewer would previously try to erroneously load a dynamic core named 'builtin' - this would fail and would just be a wasteful operation - this now skips dylib loading in libretro_get_system_info for builtin cores.

AUTO SAVESTATES: Ensure save states are correctly flushed to disk when quitting RetroArch (fixes broken save states when exiting RetroArch - without first closing content - with 'Auto Save State' enabled).

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