I'll tell you right away, I've had a long break from programming, so I've forgotten a lot, but I ran into this problem.
I made a demoboard for myself with a PIC32AK1216GC41036 MCU. I've started to slowly brush up on my programming knowledge.

The problem I encountered was that everything was fine with compiler version 5.00 (and earlier). But upgrading to version 5.10 returns a message saying the compiler doesn't have information about this controller.
pic32m-gcc.exe: error: unrecognized command-line option '-mcpu=32AK1216GC41036'
And if I searched around, I saw that in version 5.00 the directory looked like this:

and in version 5.10 it looked like this:

and the search returned no results for these processors.
I'll tell you right away, I've tried every possible trick and trick I know, but the results are negative.
Can someone tell me how to upgrade to 5.10 or add the missing MCUs to the compiler?
I would be grateful for your help.