They didn't declare anything about that. Vivaldi said they have their own ad blocker not dependent on V2 [0]. Edge is in process of updating their timeline [1].
I think the problem is. What if Chromium won't have code supporting V2 anymore? This means, it is just impossible to run V2 extensions because V2 is not only turned off but completely removed.
Vivaldi seems to have decided that they will provide a built-in feature for advanced ad blocking and Edge seems to be undecided yet.
Oof, sorry for spreading misinformation.
I could've sword that I read an announcement years ago by Microsoft, stating that they're not planning to deprecate V2 and keep supporting both. I cannot find this announcement anymore, and it seems the deprecation is already in effect.
Thanks for acknowledging. Mistakes can and do happen, or information has changed since the post. I also accidentally wrote misinformation here on Hacker News.
