Mecanique has been good to us so far. I would think that they keep an eye on new PICs released by Microchip and do the best they can to incorporate them in their software.

It might not be a simple thing to fully support a chip. Maybe it's a long and tedious process? I wouldn't know.

That's why I do my best to stick to "common" PICs. I started with 16F628, then 16F877 and now 18F2550 and 18F4550.