The feature is GBT directly from the bitcoin daemon. The problem is that GBT REQUIRES an address. Not an anti-feature but not the way "get work" worked. Now Con can't possibly setup a binary with everyone's individual bitcoin address. People do see that I hope. Since it won't mine without an address one is put into the code so that if there is a problem solo mining would work. There is bold mention of it in the release notes. It is stated in the readme. It's not really a huge thing but people seem overly bothered by needing to read when upgrading. Things change. For having to put in a bitcoin address on the new version you get a much better work supply from your daemon.
If you forget to fill in your pool credentials, should it then just default to mining using Con's credentials?
If you leave out a parameter necessary for mining on a given pool, it will just not mine on that pool, and will provide a message explaining the situation.
Solo mining requires a payout address, so if that parameter is not provided, then clearly, solo mining should not occur on anyone's address, and the user should be informed about the situation.
Am I missing something here?