Hay otro post que explicaba que traía, pocas mejoras, básicamente como siempre, amplia compatibilidad con los nuevos juegos.
Ahora busco.
EDIT ::
Firmware 2.5:
=========================
Changelog:
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Fixed the problem of adding the soft-rest function for Game 3151,3380,3482,3484
Fixed the compatibility of game 3499,3477
Auto anti-piracy patching function was added
(Game tested up to 3498)
Firmware 2.4b
=========================
1. Solve the problem of adding the soft-rest function for Game 3366,,3367,3369,3396,3401,3406,3415,3416,3417,3418,3424,3429,3449,3456
2. Solve the problem of adding the RTS function for Game 3149,3397,3401,3414,3418,3427,3429
3. Fix the compatibility of game 3369,3380,3396,3424,3449
4. "Instant-code" feature was added, useful for adding privacy code.
5. Fix the "cheat engine", to detect D4 and C code properly. (Thanks the suggestions of Narin(http://www.gbatemp.net)
6. Added deletion feature in iCard mode. Press "Select" to delete files.
** Please note we are currently still working on RTS for 3369
En el 2.4 introducieron el poder borrar archivos en my Disc (que en mi opinion se estaba quedando sin uso).
Y no entiendo lo del Instant-code, tendré que buscarlo y usarlo xD