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Glad to hear that's changed. There were strident statements from the developer on Github last time I researched it to the effect that implementing '!'-style history expansion was contrary to the fish philosophy and that people just need to learn the fish-y way. Looking back it, I probably could have fixed the issue for myself by setting up vi-mode in fish, but I didn't come across that option at the time.

That is a recent(-ish) addition¹, arriving in 3.1. Your interpretation of recent may be a different length to mine, but one Debian release in this instance ;)

¹ https://github.com/fish-shell/fish-shell/pull/6140

I guess he wasn't aware. I use fish, and I'm learning this now too. I probably really should give the fish docs a read-through, as I imagine it could significantly improve my shell efficiency.