PKGJ update 0.57

Hey togheter,

I picked up my vita again after about a year and the PKGJ store said there is a new update now. My current version is 0.55 and the update it is asking for is 0.57.
Is it save to press yes and let it update? Also what comes with the new update?

Thank you very much! I forgot how good this handheld was :D