Units between versions were mostly not a problem due to the culture.
Virtually all third party commercial libraries had source available, which had a raft of benefits (even if you often needed to pay more for the library to get the source.)
Meanwhile for other languages, libraries were often sold without any source, and you were royally screwed if you had a problem later.
Virtually all third party commercial libraries had source available, which had a raft of benefits (even if you often needed to pay more for the library to get the source.)
Meanwhile for other languages, libraries were often sold without any source, and you were royally screwed if you had a problem later.