• Old app cleanup: Settings > Storage now shows how much space Arc Timeline 3's old data is using on your iPhone, with a safe way to delete it when you no longer need it. Safeguards make sure everything worth keeping has been copied across first. (BIG-321, BIG-693) • Improved recording accuracy on underground metro and train lines. (BIG-607) • Improved timeline item handling around recording gaps, plus other timeline processing refinements. (BIG-444, BIG-585) • The place merge confirmation now shows each place's visit count, to help you pick the keeper. (BIG-676) • Responses in Search can now be copied with a long press. (BIG-561) • Fixed a date display issue for Japanese and Chinese at larger text sizes. (BIG-673) • Plus foundations for place categories, coming in a future update. (BIG-513)

• Merge duplicate places. If the same place has ended up recorded twice, open either one and choose Merge Places from the menu. (BIG-153) • Reduced unnecessary overnight location activity. (BIG-624) • Improved GPX import removal. (BIG-645) • The map scale bar in the Places tab now follows the card, matching the Timeline tab. (BIG-113)

• Visits without an assigned place now get their street address filled in automatically as you browse, including city and country, and become findable by city and country in search. (BIG-455) • Set a visit's one-time title to its street address with a single tap. (BIG-227) • Street-address titles display in a lighter style, so they read apart from places you've named yourself. (BIG-634) • Run automatic exports on demand with new Run Now buttons in Settings, and the last-export times shown there are now accurate. (BIG-568) • The AI assistant now handles date ranges like "last 30 days" and "since 2020" correctly, and answers questions spanning long histories more reliably. (BIG-582, BIG-564, BIG-548) • Fixed layout and translation issues in GPX import. (BIG-630, BIG-637)

• Import GPX files. Bring routes, workouts, and old exports into your timeline: open a GPX file from the Files app or a share sheet, or use the new Import GPX File option on the timeline view. You can adjust dates and timezones before importing, existing timeline data is safely set aside when an import overlaps it, and any import can be removed again later with everything restored exactly as it was. (BIG-204) • Background recording without the persistent location indicator. Arc no longer keeps the location indicator lit while recording in the background. (BIG-617) • Further improvements to recording on underground trains and metros, plus a fix for out-of-order location data that could distort recorded paths. (BIG-607) • New Export Diagnostics option on the timeline view. If a day ever looks wrong, it packages everything we need to investigate into a single file you can send us. (BIG-626) • Arc's documents folder is now visible in the Files app (On My iPhone, Arc Timeline 4).

• See what you're up to at a glance with a new widget for your home screen and lock screen, showing your current activity and when it started. (BIG-140) • Choose your map style in Settings, with separate styles for light and dark mode. (BIG-146) • Add notes to timeline items more easily, and notes now save automatically when you leave the editor. (BIG-445, BIG-473) • Fixed a crash that could occur when exporting your data.

• Fixed a UI freeze that could occur after returning to the app. (BIG-595) • Improved the reliability of migrating your data from the original Arc Timeline app. (BIG-598, BIG-608, BIG-611)

• Fixed a case where backups on storage-constrained devices could restart from scratch instead of updating incrementally. (BIG-597) • Fixed a rare case where recording could stop after an app update. (BIG-604) • Added a safeguard that recovers background recording if it stalls. (BIG-596)

• Fixed an issue where a visit's start or end time, including manual corrections you'd made, could shift back after the timeline reprocessed. (BIG-408) • Fixed false-positive duplicate-Lifetime purchase warnings for users with older one-time purchases, and added a way to dismiss the warning. (BIG-539, BIG-538) • Fixed clipping and alignment issues in exported timeline images. (BIG-546)

• Ask about your timeline in plain language. The search field now understands natural-language questions, and a new chat view answers back in plain prose and handles follow-ups. It's opt-in, and an early foundation we'll keep building on. • Search now includes your saved places, alongside visits, trips, and notes. • Better recording underground. In metros, subways, and tunnels where the phone loses GPS, Arc now recognises the situation and does a better job of following your actual route instead of stalling at the station entrance.

• New Storage view in Settings — see how much space Arc Timeline 4 is using on device and in iCloud Drive, broken down by category (BIG-313) • Cleaned up the system temp directory — iOS hasn't been reliably purging these on its end, so they were accumulating significant disk space. Affected users may recover meaningful free space on first launch • Swedish locale now uses km for long distances instead of "mil" (Scandinavian mile) (BIG-472) • Fixed the share button on the daily timeline staying visible when navigating into timeline sub-views

Export your daily timeline as an image — tap the new share button on the timeline view to save or share a PNG of your day

• Automatic Exports — Settings › Backup & Restore now offers daily and weekly automatic exports of your timeline data to iCloud Drive, in GPX or JSON format. Files appear at iCloud Drive › Arc Timeline › Exports › Daily/Weekly. Exports run when your phone is connected to power. • Place search expanded to match country, city, and street address fields, in addition to place name • Visits without an assigned place now show their street address when available, instead of "Unknown Place" • URL scheme `arctimeline://` for launching the app from Shortcuts, automation, and other apps

• Fixed a rare crash • Mapbox attribution now sits above the timeline sheet

• Improved GPS accuracy at frequently visited places with new learned Drift Profiles • Added Google Maps link to place details for richer place info • Fixed phantom timeline items appearing after brief app wake-ups • Fixed false-positive "Duplicate Subscription" warnings • Fixed onboarding occasionally re-presenting the data import page • Fixed a crash in the calendar widget on the timeline toolbar • Fixed a crash in visit sample pruning • Various sleep mode and recording reliability improvements