Thanks to XPSemu-Chihiro by tattoohanz for the base board, drive board and card reader work, and to Cxbx-Reloaded for the method of starting Chihiro games without a BIOS.

• A new Chihiro tab for Sega's Xbox-based arcade board. The games run on the same native core as Xbox games.
• No Chihiro BIOS and no media board flash needed. Only your game and the 3 base board files.
• Games are read in place: nothing is unpacked first, and no extra space is used.
• Controls made for each game: driving games on the sticks and triggers, gun games with a crosshair on the left stick.
• Gun games also work with a USB mouse.
• Steering wheel force feedback comes through as controller rumble.
• After the first start, games skip the SEGA boot screen and start directly.

Playable so far:

• OutRun 2 (with force feedback)
• Crazy Taxi: High Roller
• Virtua Cop 3
• Ollie King
• Ghost Squad

• Each game shows its region and languages, for example "USA - En, Fr".
• Game language: Auto (the new default): games use your PS5's language when the disc has it, else English.
• The same disc in two places is marked Duplicate, with the other copy's path.
• Delete game saves in a game's settings.

• Xbox games now rumble the DualSense, on all 4 controllers.
• Turn it on or off in Settings > Controller (the button under the controller), or in the quick menu. One setting for every game.

• System > Check for updates finds the newest XPSemu on GitHub, installs it by itself and restarts.
• When a new version is out, XPSemu tells you when it starts.
• 3.1 is the first version with this: from here on, there's no need to copy files by hand to update.

• A new top choice: SSAA draws at x6 and averages it down, then SMAA smooths the edges once more. The smoothest picture XPSemu has, and the heaviest.
• In Settings > Video > Anti-aliasing, per game, and in the quick menu.

• CHD (.chd): compressed images.
• CSO (.cso): compressed images, including ones split in two (Game.1.cso + Game.2.cso).
• Split XISOs: Game.1.iso, Game.2.iso... (up to 9 parts) play as one disc.
• All of them work in Games and in the Browser.