Note that I'm referring to GNAT PRO & GNAT Community. I believe licensing are the main differences. Someone above kindly pointed out that not all the community

Note that I'm referring to GNAT PRO & GNAT Community. I believe licensing are the main differences. Someone above kindly pointed out that not all the community libraries are GPL (some could be BSD), but I prefer the software I might use for production to have something closer to an MIT license. In my eyes, I'd rather the default GNAT Community have a very liberal MIT license for the compiler and all the libraries, and have the IDE (GPS I believe),SPARK, support, and maybe some libraries as commercial products. That might not make sense for their customer base though.