[prginthebox]

The almost equivalent is always the scary part. Is there a guarantee that there is no technical difference between the draft and final standard? From your reply, it seems, it is intentionally not specified what exactly are the differences to force compiler vendor to buy the standards. But then the one using a draft is always scared there is one thing different which he has not looked into and this is causing problems somehow.

[johannes1234321]

Non-editorial changes would have to be voted in. This is not an easy process which can happen late.

And mind: It's not only for compiler vendors. An ISO standard is a legal document. Based on your country you might put in your software's contract that your code is compliant C++ code or might consult the standard in a legal debate with a commercial vendor. All quite limited ... but not only compiler vendors.