The link is to an image of the Arctype newsletter I received. I apologize for not having a better source. I couldn't find an online version of the newsletter, or any news sources that covered the end-of-life announcement.

If you go to the Arctype website (https://arctype.com/) you can see that you can no longer download the app, and you see an announcement banner at top that they are joining ClickHouse.

I am personally pretty sad that development won't continue on the Arctype SQL Client, as it is the primary client I currently use.

Arctype is well-polished and feels very natural with ClickHouse, there are not many SQL UIs like this. Frankly speaking, there are not many JavaScript applications that don't look like garbage. At least Arctype is not slow.