Here’s an update to my previous post to more directly answer the OP’s question. 7.3 was released on 1 Jan 2017. Unfortunately, it seems that forum @administrators do not usually announce when a release is shifted from pre-prelease mode to production so that the built-in check-for-updates thing updates can pick it up. I suspect 7.3 was never released to production though it’s possible it was released and then withdrawn when the incorrect MD5 issue became known. The MD5 issue was fixed in 7.3.1 on 17 Jan 2017.