YA.16.11.0014 (or latest YA.16.xx.xxxx)
YA.16.11
copy tftp flash <tftp_server_ip> YA_16_11_0014.swi primary Boot ROM version YA.01.09 or later is required for YA.16.x firmware. hp 2530 48g firmware
Here is the text you requested for the HP 2530-48G switch firmware information. hp 2530 48g firmware