Hello!

Is there any option to get to know about RemedyBG updates without going to https://remedybg.itch.io/remedybg? Maybe email subscribtion or some "update" button in RemedyBG itself like in 10x editor?

As far as I know there isn't.

x13pixels generally posts a new thread in the forum when there is a new version, and so it will show up in the handmade network rss/atom feed which could help if you check that.