A new beta version has been released. Changes in FS-UAE 2.3.99rc1 ("FS-UAE 2.4 RC 1"):

• (Launcher)Don't refresh the online database when running the file scanner.
• (Launcher) Game database changes for better forward compatibility.

Please see the preliminary release notes for FS-UAE 2.4 for information about what’s new if you are upgrading from FS-UAE 2.2.x. If no problems appear, FS-UAE 2.4.0 will be released shortly :)