"CLOC" is still there, but the weather features are all gone/broken, and have been for a long time. Something about how the Roku app store works, had kept the developer from updating the official channel version for a long time. Which is why so many people have (had?) the private CLOCKPRI app installed, I'm sure. And now, the private screensaver is gone, replaced by Roku's fish tank. And the public one is broken--it doesn't show the weather.
I would pay money (even a subscription, if it was a low one) to have this back again. I'm happy to pay a reasonable price for something I rely on to keep it running. And I literally might replace my Roku over this, if the CLOC app doesn't get updated. Time and weather displaying on my TV, whenever I'm not actively watching something, is a useful feature I've gotten used to having. If I have to, I'll hack something together with a Raspberry Pi and spare time, and then Roku will have lost a years-long customer.
Roku doesn't realize just how much they shot themselves in the foot here. If they make me go through effort to replace functionality I had on my Roku, I'm replacing my Roku. I'm not going to keep something I don't trust and I expect to keep losing functionality on.