Switched to Zellij a few years back mostly for the sane defaults, I expected to come crawling back to tmux, but it's actually stuck quite nicely and has become a staple in my workflow. It hasn't been a perfect experience, but I like it a lot and I'm happy to see a new feature-rich release like this.
Anthropic was pulling ahead of their peers, but if they can't hear their customer's complaints about negatively changing value between releases they're going to undermine their position until no advantage is left.
Anthropic continues to pull ahead of the other ai companies in terms of 'trustworthiness' If they want to really test their red team I hope they look at CUPS