Did Fastmail's webmail interface get a major overhaul back around 2018 or 2019? It's all a blur to me, but this is what I seem to remember. In any event, I have found the experience to be consistently unparalleled in all the ways that matter. This is why I'm surprised to see complaints. Very interested in everyone's opinion.

I've been with FM since 2002. In the early years, the interface was just "ok". But it was in line with many other providers and its subpar UI was inline with the times (being early 2000s). It has come a long way since then and probably peaked a few years ago. As someone mentioned, power users are more annoyed by the UI "pretty" changes with no better functionality.

I'm by no means a power user so I just go with the flow. Though I did recently encounter the subject line issue as mentioned above and had a scroll far too long to be able to find where to edit it.

To those who have issue about changes being implemented without notice, that is how its done these days. Most companies use agile methodologies and have frequent releases. A small tweak here, a small tweak there. They can't possible deliver notice on every small change. I get your frustration, but also understand it from a business perspective.

FM don't make moment-to-moment changes though (except to fix critical bugs). For the most-recent changes they had time to write a blog post about it.

I refuse to believe someone in the know couldn't have written a few paragraphs about how (now) to do stuff.

You would HOPE that they'd already written corresponding documentation of internal logic changes (& its aims & pros & cons) for themselves & their testing of the changes and that they'd not regressed anything should have revealed precisely the things that users would need to know.