I've been using 4.18 for a few years now and it's been working fine. I do mostly 8-bit stuff with Tinys and Megas. But I'm thinking of upgrading to 6.1/6.2 since I want to getting into AVR32s and ARMs. But reading in this thread I see that some of my C code written for existing projects may not be "compatible" with 6.x.
An example; the use of PROGMEM. I read in one post that AS handles PROGMEM differently now and I would have to change my code in existing projects.
What sort of other "growing pains" can I expect if I make the move from AS4 to 6.x?
Thanks in advance.