Let me explain the last 24 hours. We finished and started the roll-out of 0.1.8. We first rolled it out to some of our nodes and the IRC channel. We then started rolling it out to exchanges. BTER was first and implemented 0.1.8 yesterday. After getting his node up and running, Karma (Creator of CryptiKit) found a bug and reported it to Boris. We stopped the roll-out to fix the bug. Boris ended up fixing the bug yesterday evening but then they found another possible problem while fixing that. So last night and this morning Boris was working to fix the problems. He believes he has it fixed and just rolled out an update of 0.1.8 to the IRC channel and our nodes. We are going to give it an hour or so while he runs to the Market to make sure no more issues arise. At that point, we will update the exchanges and then post the release notes and download link.
If you transferred money yesterday, it's possible that it was either transferred from a node on a different version or transferred TO a node that was on a different version at the time (i.e. BTER). The funds are not lost and the transaction can be re-sent once everyone is updated to the new version and it will go through as usual. The issue is probably related to the halted roll-out due to the discovered bugs.
Keep in mind 0.1.8 was a partial optimization and for 0.1.9 we actually went back and re-wrote everything from scratch to use the new DB structure and improve every aspect of the code. While 0.1.8 loads in about 20 minutes (way faster than previous version), 0.1.9 is a tenfold increase in performance in lots of areas and is running effectively on 512 mb instances. We should be ready to put 0.1.9 into testing this week if all goes well.