Codenames

This page lists several code names of Apple features.

Broadway: Apple Card
Brook: Handwashing detection (BrookServices and BrookDataCollection private frameworks since iOS 14).
Durian: AirTags (seen eg. in the firmware update)
Ensemble: Universal Control (macOS 12/iOS 15)
Haywire: Lightning video adapters (eg. Lightning to HDMI)
HiFive: Chip present in Lightning cable connectors to negotiate the Lightning protocol.
Hydra: Multiplexing chip in iDevices since iPhone X to deal with the Lightning protocol.
Madrid: iMessage^[1]
Medusa: iPad Split Screen (probably Slide Over etc. too)
Mesa: TouchID
Rose: U1 / Ultra Wide Band chip
Stark: CarPlay
Stockholm: Apple Pay / Secure Element
Skywagon: Xcode Cloud
Tristar: Multiplexing chip in iDevices that deals with the Lightning protocol.
Wormhole: AirDrop^[2]

Unknown names

Codenames seen somewhere, but for which we don't know the meaning or it's not certain, and needs more investigation.

Absinthe: FairPlay-related
Avocado: Seen in SpringBoard code os_feature_enabled_impl("SpringBoard", "Avocado")
Futhark: Private framework since iOS 9 (text detection?)
Mescal: FairPlay-related
Morphun: Private framework, there's also a MorphunData asset in mesu.
Neutrino: Private frameworks since iOS 11 (NeutrinoCore and NeutrinoKit).
Osprey: Private framework iOS 13, related to Siri, uses Absinthe
Pegasus: Private framework since iOS 9 (not related to NSO's exploit tool).
Proud Lock: Mentioned on SpringBoard code, possibly FaceID unlock?
Silex: Private framework since iOS 11.
Vapor: Seen in SpringBoard code os_feature_enabled_impl("NotificationCenter", "Vapor")
Viceroy: Seen in multiple frameworks, FaceTime-related.
Xavier: Private frameworks since iOS 14 (XavierCore/XavierNews).

Since the A6, Apple SoCs have Apple-designed CPU cores. This table lists their names.

^ "Madrid" and com.apple.madrid appear in iMessage code, data files, and protocol
^ sharingd used to have classes like SDWormholeConnection
^ https://twitter.com/never_released/status/1431406418322657280