There is a new GURPS book out.
I play exactly no Steampunk at all. But I launched a crossover GURPS Steampunk / Space: 1889 / GURPS Voodoo game way back when. It sadly didn't really keep going due to the mix of players just not being able to get to game that often. But we had wonderful PCs and I wish we'd had the wherewithal to keep it going.
Partly out of longing for that lost game - and my joy in Space: 1889's background - has kept me interested in GURPS Steampunk. Another book has hit the digital shelves.
I didn't playtest this one but I did get some Additional Material credit. So I got that going for me.
Short version: I like it. I probably won't use it, but I wish I could.