FREERTOS for PIC32 – V6.0.2 vs last

Hi
we are using port for PIC32 V6.0.2. We have code in production and we should not switch to new one for our device update.
but i saw differences in files in folder portableMPLABPIC32MX , even in assembly code for context switch
Is it something fixed in the freertos kernel fo my porting??
can i avoid it or it is necessary? thanks in advance

FREERTOS for PIC32 – V6.0.2 vs last

Search for PIC32 in http://www.FreeRTOS.org/History.txt