I’d just like to report that I successfully changed the gender in my passport.

Unfortunately, I overpowered the gender-change spell and accidentally transed the King:

Though I would like to complain that the Series C biometric passports have pretty terrible artwork as backgrounds on the visa pages (THERE'S NO VARIETY AT ALL?!), especially compared with the lovely imagery of the Series B passports.
@gsnedders you also have to sign them after receiving the passport, which is 10 times more nervewracking than doing so on an application form that can be thrown away and restarted :p
@eta the Series B passport I got in 2020 was like that too; think that’s been the case since they moved most applications online? I was surprised mine didn’t get printed given it was done via a paper form (as is required by the Fast Track service)
@gsnedders oh interesting -- yeah, I have a Series C renewed via fast track paper too (...which ended up taking more like 2 months in the end, but that's a separate story) which I had to sign