Infans v2.5.0-rc1 (TEST — Summary UI refresh + timer sync fix)

TEST BUILD for the v2.5.0 release. Delete after testing.

Summary UI refresh (approved mock direction):

• Live session card on the home screen (never stops the timer itself — one stop path)
• Status strip: last feed / last diaper / sleep today
• Quick log: 5 one-tap tiles with undo snackbar; diaper opens a bottom sheet
• Plain-language sleep insight vs 7-day average (hides without data)
• All new strings in English + Spanish

Ghost timer sync fix (c946428):

• Timers resurrected after an app restart now force-stop properly when the partner ends the session
• session_ended publish retries once on failure

NOT published to Zapstore. In-app auto-update ignores prereleases — v2.4.3 phones will not see this. Sideload the arm64 APK (Pixel 7 Pro / 10 Pro XL); universal APK for anything else.

Infans v2.4.3

Fixes

• Timers: live sleep/feeding timers no longer vanish when a relay reconnect replays a stale stop event (starter sees the timer die while the partner still sees it running). 60 s clock-skew tolerance + event dedupe.

New

• Spanish localization — full UI translation (505 strings, neutral Latin American Spanish). Android picks the language from system settings; sync keys stay language-stable so mixed-language phones keep syncing.

Improvements

• ~36% smaller download — APKs are now split per CPU architecture; phones get the arm64 build (7.2 MB vs 11.8 MB).
• Room 2.6.1 → 2.8.5, KSP2 build.

Same signing key as always — no re-login or migration needed.

v2.4.2

• QR scanner is fully Google-free: ZXing decodes CameraX YUV directly, ML Kit removed
• Screenshot protection (FLAG_SECURE) on by default, with a Settings toggle — blocks screenshots, screen recording, and recents preview
• Key storage migrated off deprecated EncryptedSharedPreferences to direct AndroidKeyStore AES-256-GCM (one-time automatic migration)
• TLS-only networking: LAN cleartext exception removed
• Target/compile SDK 35 (Android 15)
• Dependency refresh: AGP 8.7.3, Kotlin 2.1.0, Compose BOM 2025.01.00, CameraX 1.4.1, WorkManager 2.10.0

v2.4.1 — Timer & Sync Stability Fixes

Two bug fixes since v2.4.0:

• Fix: sleep timer dying on tab switch — a stale forceStopTick was firing on recomposition, stopping running timers when you switched tabs. Timers now survive navigation.
• Fix: reconnect after server-initiated websocket close — relays that drop the connection (idle timeout, restart) now trigger a clean reconnect instead of a dead sync until app restart.

No new features. No schema changes. Safe to update in place from v2.4.0.

---

Infans is a privacy-first baby tracking app with Nostr-based encrypted storage and parent-to-parent sync. No telemetry, no analytics, no tracking.

v2.4.0 - Vaccine Tracker, QR Pairing, Onboarding Wizard

What's New

Features

• Vaccine tracker - Track vaccinations with type, date, next-due date, dose number, notes. New Vaccines tab in Health screen.
• QR code partner pairing - Scan QR to link with other parent. Show My QR displays your code.
• Partner pairing options - Three ways: QR scan, npub paste, NIP-05 paste.
• Frictionless onboarding - Plain-English, one-tap key generation, QR-first pairing.
• Onboarding wizard - 7-page guided flow with progress dots.
• Sleep start/stop times - Cards show start-end range.
• Export npub - Copy npub/NIP-05 to clipboard from Settings.
• Default relay swap - nostr.oxtr.dev replaces relay.primal.net for new users.
• Author tracking - Every entry shows which parent logged it.
• Haptic feedback - Vibration on log buttons, toggle in Settings.
• Key safety warning - Warns that losing key means data loss.

Bug Fixes

• Cross-device timer sync - no more duplicate records
• Sleep trend double-counting - dedup fix

Technical

• DB migrations v4-v5 (authorPubkey) + v5-v6 (vaccines)
• BackupPayload v3-v4 (vaccines)
• New deps: ZXing, CameraX, ML Kit
• CAMERA permission added

v2.3.1 — NIP-44 v2 Spec Compliance

NIP-44 v2 Spec Compliance + Disclaimers

Crypto Fixes (Nip44.kt)

• AES-256-GCM to ChaCha20 + HMAC-SHA256 (RFC 8439)
• Correct 2-phase HKDF: extract salt="nip44-v2", per-message expand info=nonce
• Chunk-based padding with calcPaddedLen
• MAC verification on decrypt with constant-time comparison
• Minimum payload validation (99 bytes / 132 base64 chars)
• ECDH uses raw x-coordinate via BouncyCastle

Tags/Docs

• encrypted tag: "nip44" to "nip44v2"
• README: Medical Disclaimer + Security Notice
• zapstore.yaml: Medical Disclaimer + Security Notice

Tests

• Nip44Test.kt: 19 tests including official spec test vector

Breaking Change

Old backups encrypted with AES-GCM (tag "nip44") will not decrypt with the new NIP-44 v2 implementation. Local Room database is unaffected. A fresh backup will be created on the next export.

v2.3.0 — Cross-Device Live Timer Sync

Live Timer Sync

Start a nap timer on one phone, stop it on the other. Both parents see the running timer in real time.

How it works

• When you start a Sleep or Breast timer, an encrypted ActiveSession event is published to your partner via Nostr (kind 30078, NIP-44 encrypted)
• Your partner phone receives it and shows the timer as running with a Started by partner badge
• Either parent can stop the timer — the stopper creates the record and publishes a session-ended event
• The other parent phone clears the timer automatically

Edge cases handled

• Partner offline at start: timer appears with correct elapsed time on reconnect
• App killed on starter phone: timer still displays on partner phone until stopped
• Simultaneous stop: first event wins, deduped by sessionId

Technical

• New ActiveSession data model (sessionId, label, childId, startTime, startedBy, alarmMinutes)
• BackupService: publishSession/decryptSession/endSession
• NostrManager: StateFlows for remote sessions, relay subscriptions, echo dedup
• LiveTimer: accepts remoteSession, shows partner badge, either-side stop
• No new dependencies, no new permissions, all on existing NIP-44 encryption infrastructure

Version: 2.3.0 (code 51)

v2.2.1 — Release signing for Zapstore

Signed with new release keystore (old one was rotated after accidental commit).

• APK signed with RSA 4096 release key
• Certificate SHA-256: f1b7cbc149675677f527837375b24b8283e8e944ef0bec46c10992b80f32ce90
• versionCode: 50, versionName: 2.2.1

v2.2.0 — Custom relays, bath tracking, activity charts & security fixes

What's New

Custom Relays

• Added a relay editor in Settings — users can now manually set their own relay list instead of relying solely on NIP-65 auto-discovery
• One URL per line, with automatic normalization (bare domain → wss://, https:// → wss://, http:// → ws://)
• Deduplication and validation on apply
• Custom relays are saved and loaded on next launch without needing a NIP-65 fetch

Bath Tracking

• Replaced the redundant Weight quick action on the home screen with a Bath quick action (Weight is still accessible via its bottom-nav tab)
• New Bath screen with three bath types: Full Bath, Sponge Bath, Tub Bath
• Optional note field, today's bath history with edit-time and delete per entry
• Full sync pipeline: baths are included in the encrypted NIP-44 backup payload and restored on partner sync
• Database migration 3→4 (adds baths table, all existing data preserved)

Activity Trend Charts

• Charts screen now has two tabs: Growth and Activity
• Growth tab: the existing WHO weight-for-age chart (unchanged)
• Activity tab: new bar charts with period and metric selectors
• Period options: Daily (7 days), Weekly (8 weeks), Monthly (6 months), Yearly (5 years)
• Metric options: Feedings (count), Sleep (hours), Diapers (count), Baths (count), Pumping (ml total), Weight (entries), Milestones (count), Health Records (count)
• Current period bar is highlighted; empty data shows a placeholder message
• BarChart component extracted to a shared file for reuse

Baby Bottle App Icon

• Replaced the crescent moon icon with a solid baby bottle silhouette (the moon was hard to make out at launcher size)
• Icon background still follows the selected color theme

Bug Fixes

NIP-65 Relay Regression

• Fixed a regression where users could only see hardcoded default relays instead of their NIP-65 relays
• Root cause: the RelayPool always started with hardcoded defaults and relied on a background NIP-65 fetch to reconfigure. The applyIcon() call from the themed-icon feature could cause a process restart, killing the fetch coroutine before it completed
• Fix: relays are now loaded from storage on startup so the pool starts with the correct relays immediately. applyIcon() now runs after initialization completes

Security Fixes

NIP-05 Identifier Leak in logcat

• 5 Log.d/Log.e/Log.w calls were writing full NIP-05 identifiers to Android's system logcat, which can be captured in bug reports or read by apps with READ_LOGS permission
• All 5 now truncate identifiers to 20 characters
• The in-app debug log was already clean (uses truncated identifiers throughout)

JSON Backup Export Warning

• Tapping "Export JSON Backup" now shows a confirmation dialog warning that the file is not encrypted
• Dialog explains the file contains all tracking data in plaintext (child's name, feeding times, sleep logs, notes) but does NOT include the Nostr private key
• Nothing exports until the user explicitly acknowledges

Notes

• APK size: 28 MB (debug, unchanged)
• Zero new dependencies added
• Database version bumped to 4 (migration included)

v2.1.0 — Theme packs, UI polish & themed app icons

What's New

Theme Packs (7 color schemes)

• Material You (system dynamic color, Android 12+)
• Purple (default)
• Ocean Blue
• Forest Green
• Rose Pink
• Sunset Orange
• Teal Mist

Settings → Appearance → Color Theme. Each option shows live color preview swatches.

Themed App Icons

The home-screen icon background now matches your selected theme color. The moon + star foreground stays the same; the background changes. The app restarts when you switch themes (expected — Android requires this to swap launcher icons).

UI Polish

• Gradient hero card on the summary screen
• Color-coded icons: feeding=primary, sleep=tertiary, diaper=secondary
• Card elevation throughout for visual depth
• Gradient bar chart fills
• Icon circles with tinted backgrounds

App Icon

Replaced the default Android Studio smiley face with a crescent moon + star on a night-sky gradient. Clean, minimal, nighttime/calm theme.

Technical

• Zero new dependencies — all theming uses existing Compose Material 3 APIs
• All icons are vector XML (no PNG bloat)
• APK size: 27MB (down from 28MB)
• minSdk 26 (Android 8.0+)