There’s some new emoji, of course, but most of the new changes in iOS 17.4 Beta 3 — which was seeded to Public Beta testers today, and Developers on the Developer Beta track not long before that — are EU-specific.
The iOS 17.4 […] [beta] introduce a whole slew of changes for users in the European Union, allowing for alternative app stores and alternative payment methods.
There are new options for choosing a default browser, NFC has been opened up to banks and other financial institutions, and browsers aren’t mandated to use WebKit.
None of those features are coming to the US or any other territories besides EU member countries, though.
However, Stolen Device Protection, new emoji, and transcripts in Apple Podcasts are included worldwide, so there’s that. My guess is most of the engineering efforts are on EU DMA compliance and iOS 18 now… Apple’s WWDC is imminent (June), and they usually have things ready to go by mid-to-late April/early May.