There was an iOS App Store release. I mentioned in the release notes that there was a security fix. The specific fix was a bug that didn’t save user preferences when deselecting OMEMO keys in the UI. I am generally good about clarity with security changes (see the SSL changes) I will be better about it in the future.
I am working more on iOS at the moment. The chat UI is a bit more refined. I have adjusted the dates and the spacing between cells depending on the message before it. iOS users who have used Messages will find this familiar. I will work on aesgcm:// links next. It may not make it into next weeks release but likely the one after that.