Apr 14, 20263.4.0 · Major

Long-range pattern detection, finally out of beta.

Plus subscribers who have been with us since January can now see patterns that span 90+ days — seasonal changes, travel effects, post-op recovery curves. The stricter correlation threshold (r ≥ 0.35) means fewer, sharper signals.

  • New · Long-range correlation view, Settings → Insights → Long-range.
  • New · Seasonal overlay: your current month compared to your own baseline.
  • New · PDF report now includes a "highlights" page for your GI visit.
  • Fix · Bristol carousel no longer double-taps into symptom screen on iPhone 13 mini.
  • Fix · Watch complication cleared state on midnight when daylight savings ended.
Mar 28, 20263.3.2 · Patch

Photo encryption upgraded to AES-GCM.

All meal and symptom photos, new and historic, are now encrypted at rest using AES-GCM with an iCloud keychain key. Existing photos are re-encrypted lazily in the background — no action needed.

  • Changed · Photo storage format migrated (backwards-compatible read for 90 days).
  • Fix · Share sheet from photo picker no longer crashes on iPadOS 18.4.
  • Fix · Voice note playback controls on Dynamic Island.
Mar 11, 20263.3.0 · Plus

AI meal analysis opens to everyone on Plus.

Point at a plate. Gutlog Plus returns a short note on estimated fiber (low / med / high) and flags likely irritants for FODMAP-sensitive and low-residue diets. Runs on a small on-device model for the vision pass; nothing about your meal leaves the phone.

  • New · AI meal analysis button on the Quick Log screen.
  • New · Irritant chips show up as log tags, so correlations can use them.
  • Changed · Quick Log screen reorganized to put the camera button above the keyboard fold.
Feb 22, 20263.2.4 · Patch

Gentle nudges, not streaks.

We added a quiet reminder system for constipation patterns — after 3 days of Bristol types 1–2, Gutlog will once offer a low-key suggestion (hydration, fiber, walk). It never nags. It never counts. You can turn it off in two taps.

  • New · Optional constipation reminder. Default off.
  • Fix · Mood emoji rendering on older iPad displays.
  • Breaking · Old "streak" field removed from JSON export. Was deprecated in 3.0; now gone entirely.
Feb 04, 20263.2.0 · Minor

Voice note logging.

Tap and hold the mic on the Quick Log screen to record up to 30 seconds. We transcribe locally (via Apple's on-device speech model) and attach both audio and text to the log.

  • New · Voice notes with on-device transcription.
  • Changed · Settings page split into Data, Privacy, Insights.
Jan 14, 20263.1.0 · Minor

watchOS 10 complication redesign.

Three new complication families (Corner, Circular, Rectangular), each with a subtle glyph for "logged today" vs "open log". The rectangular variant shows today's Bristol number plus a tiny 7-day strip.

  • New · Three complication families, full-color.
  • New · Quick log flow on Apple Watch cut from 4 taps to 2.
  • Fix · Crown scrolling on Bristol picker respected reduced-motion setting.
Dec 18, 20253.0.0 · Major

Gutlog 3: rebuilt on SwiftData.

Full rewrite of the storage layer onto Apple's SwiftData. Migration is automatic and reversible. No visible changes on day one, but everything that came after in this changelog was unlocked by it.

  • Changed · Storage engine migrated to SwiftData.
  • Breaking · iOS 16.4 now the minimum supported version (was 15.5).
  • Breaking · JSON export schema v2 — old v1 export format sunsets June 2026.
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Plus subscribers get builds roughly a week before the App Store release. The beta channel is currently averaging 2–3 builds per cycle.