@DTS Engineer Using Xcode 26.2, targeting an iPhone 17 Pro running 26.1, Xcode crashes saying the symbol isn't available. FB21116398. This is the case accessing both the eligibility property, as well as the additional age range declaration enum cases.

@DTS Engineer Thanks for confirming, I can put my availability check in my code and just comment it out until Xcode is also fixed. The availability in Xcode headers also says 26.0. I did confirm it works as expected on an iOS 26.2 device.

@DTS Engineer you or others may have already seen this one but just in case you haven't. FB21240249 - DeclaredAgeRange: DeclaredAgeRangeAction symbol unavailable on macOS catalyst apps causing crash - documentation says otherwise

@DTS Engineer Fixed for AgeRangeDeclaration, but not ParentalControls property for significant change. FB21340649 - DeclaredAgeRange: Production Issue - AgeRangeService.ParentalControls.significantAppChangeApprovalRequired causes crashes on iOS 26.0 and 26.1 devices

Thanks for sharing my feedback ID @DTS Engineer! I almost forgot about this one. I'm updating it with some new context! Widget Extension running against the memory limit would be good. Potentially a different ask but related. Feedback updated. I assume/speculate that any upcoming system extensions that power app intents with Siri would have strict memory footprint limits.