Platform-agnostic concepts: shared/mobile/conflict-resolution-concepts.md

Conflict Resolution — Couchbase Lite iOS/macOS

Conflicts occur when the same document is modified on multiple devices before syncing. CBL resolves them automatically using last-write-wins by default, or with a custom resolver.

How conflicts arise

Device A: doc rev 1 → edit → rev 2a  (synced)
Device B: doc rev 1 → edit → rev 2b  (offline, then syncs)
                                ↓
                    Conflict: 2a vs 2b

Default resolution: last-write-wins

CBL picks the revision with the higher sequence number. No code required.