SNK has released King of Fighters 15 update 2.21 (PS5 version 2.002.001) today for some gameplay improvements and balance adjustments. Check out the King of Fighters 15 December 7 patch notes down below.

King of Fighters 15 Update 2.21 Patch Notes | King of Fighters XV Update 2.002.001 Patch Notes | KOF15 Patch Notes for December 7:

ONLINE
Improved situations where the number of rollback frames would increase for a few
seconds immediately after a fight begins.

RANKED MATCH / CASUAL MATCH
Resolved an issue where, in certain circumstances, you would be matched to players
with a lower-level Connection Speed than the one specified.

■ HINAKO SHIJO
Shikofumi
Changed the attack’s classification from physical to projectile, resolving an issue
where certain counter moves would trigger off it.
* Despite its projectile properties, the move cannot be reflected (or nullified by other
projectiles).
Gaburiyori
Resolved an issue where the grab would not work properly when the Teishi
command was input at the same time that the character seizes the opponent.

■ BENIMARU NIKAIDO
Special Intro (Round Start)
Resolved an issue where this character’s special intros with Sylvie Paula Paula, Najd,
and Hinako Shijo were not playing as intended.

Source: SNK PDF