Originally posted by missingno:

But if we are talking about Windows, yes, the "current" version would be 19.

If we are talking about Opera we have to differentiate between Opera Presto (current version 12.16) and Opera Blink which is a totally different product! Therefore speaking strictly, an upgrade from Opera Presto to Opera Blink (which is a deceiving marketing bubble) is not possible.
People can however switch to Opera Blink in case they choose so.