Changelog
Every release, newest first.
The audio path has never changed: no transcoding, no resampling, no mixer. DSD goes out as DoP to your USB DAC; PCM goes out at the file's native rate. Each entry links to the full release notes.
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1-bit 1.7
First Light
Ask Siri to play your library, a Home screen of automatic mixes your own bridge builds from your listening history, and — optional and off by default — richer artwork and artist notes. Plus performer credits, a new DAC profile, and CarPlay recents.
- Siri voice control — say “play [album, artist, or playlist] on 1-bit”, at home, on the Lock Screen, and in CarPlay; Apple handles the voice and the app plays from your on-device library
- A Home screen of automatic mixes — Heavy Rotation, Drive Mix, Wind Down, an Auto Mix that sequences by musical key, and a time-of-day mix — generated by your own bridge from the listening history you chose to share (the v1.5 opt-in)
- Optional richer metadata via Atlas (off by default, per bridge): higher-resolution square cover art plus artist biographies and album descriptions
- Performer credits in track metadata, recent searches and recently-played in CarPlay, and a Mytek Brooklyn DAC+ profile
- Bridge 0.1.7 adds Smart Mixes, on-device audio analysis (waveform, loudness, key and tempo), and the optional Atlas premium-metadata path
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1-bit 1.6
direct drive
Browse and play straight from any UPnP / DLNA media server — no bridge required — plus a CarPlay reliability overhaul and an optional floating player.
- UPnP / DLNA media servers as music sources: browse and play directly from a NAS media server or a Chord 2Go’s built-in library, with no bridge in the path
- Server-to-renderer casting: tracks from a UPnP source play on a DLNA renderer, and the renderer fetches the audio straight from that server (2Go → 2Go works)
- CarPlay, made dependable: steering-wheel pause/resume no longer reloads or restarts the track, resume keeps your position, and silent stalls self-heal
- An optional floating dock & control deck (Settings → Appearance): a compact pill that expands into a full player without leaving the tab
- Bigger, more capable Home Screen widgets with full transport controls, library grid polish, and a fix for an iOS 26.5 crash during PCM playback
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1-bit 1.5
the one with Chord 2Go support
Play bit-exact to a Chord 2Go or any DLNA renderer on your network, back up playlists to your own bridge, and keep a private listening history.
- Play to a Chord 2Go and other DLNA / UPnP renderers — the renderer fetches the audio straight from your bridge over the LAN
- Optional per-bridge playlist backup, so playlists survive a reinstall
- Optional per-bridge listening history, viewable on the bridge admin console
- On-device MetricKit diagnostics that never leave the phone
- Bridge 0.1.5 adds the DLNA / UPnP MediaServer that makes the Chord 2Go path possible
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1-bit 1.4
the one that goes in the car
CarPlay on the head unit, offline downloads, an in-app log viewer, and an optional DSD-domain DSP chain.
- CarPlay — browse, search, tap-to-play, and Now Playing on a real CarPlay app (DSD is hidden there, since DoP markers can’t survive head-unit playback)
- Offline downloads to app-private storage, excluded from iCloud backup
- A rolling diagnostic log viewer in Settings — stays on the device
- DSD-domain DSP (beta): decimator, modulator, and volume stage that stay in the DSD domain
- Bridge 0.1.4 adds public-mode hosting and CarPlay-optimised variants; deployment target moves to iOS 26.1
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1-bit 1.3
the one where we forgot to change the codename
Background library scans, classical metadata, a Listening Tips guide — and an easter-egg card that still calls itself 1.2.
- Opportunistic background scans for big libraries — runs only while charging, idle, and on Wi-Fi
- Classical metadata: composer, conductor, and work fields, so concert recordings group correctly
- A Listening Tips guide collecting what makes the app sound right
- Long-press a folder to play, queue, or append without leaving the browser
- Bridge 0.1.3 adds a Library Inspector and server-side classical extractors
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1-bit 1.2
too late, too soon
Admin-approved bridge pairing, optional upscaled variants, and per-share cellular control.
- Admin-approved pairing — bridges can require operator approval before a device joins
- Discover-on-network pairing: tap to join, no token to type
- Optional upscaled PCM variants, generated locally on your bridge
- Per-share cellular gate: Always allow, Warn before streaming, or Wi-Fi only
- A fully lock-free render path (no syscalls during the audio callback)
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1-bit 1.1
from the heart
The 1-bit bridge launches — a free, open-source companion server — alongside a stack of launch-week fixes.
- The 1-bit bridge: a free, open-source server for Mac, Windows, Linux, or Raspberry Pi, talking to the app over HTTPS instead of SMB
- Bonjour discovery so nearby bridges show up automatically
- A proper Settings home: theme override, alternate icons, ReplayGain on PCM, crossfeed
- The unglamorous launch-week fixes — crash traces, a mass-delete trap on large libraries, AVAudioEngine auto-revive
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1-bit 1.0
1-bit is out
The first release: an iOS music player that sends your music bit-for-bit from your NAS to your DAC.
- Bit-exact PCM straight to a USB DAC, bypassing the iOS system mixer
- DSD (DSF) played as DoP for native decoding on the DAC — DSD64, DSD128, DSD256
- Library scan from an SMB share or the on-device Documents folder
- Gapless playback, plus the fiddly bits: sample-rate renegotiation and per-DAC PLL settling
Also
Bridge release notes live on the 1-bit bridge releases page. More about the app on the 1-bit home page.