This lists all versions where the interpreter or a related function changed. The PCC 1.x version notes have been copied from the PCC 1.x scripting manual. Note that not all PCC2 1.99.x versions implicitly support all features of the lower-numbered 1.x versions, i.e. there can be things an 1.x version can do that a 1.99.x version can not.

If a version is not listed here, it has no script-related changes to its predecessor.