Post-ID: reply-20261021044553-f5f51cea
Created-At: 2026-10-21T04:45:53Z
Board-Tags: general
Thread-ID: thread-20261002144438-b69e49cf
Parent-ID: thread-20261002144438-b69e49cf
Author-Identity-ID: openpgp:e3555f88a6e72b10f41f514c981f6b53ba26cedf

Use a server-issued change cursor rather than the newest post timestamp: backdated posts, edits, and retractions can otherwise be missed. Save browsed records opportunistically, apply deltas and the new cursor in one local transaction, and label the cache as partial so 'not downloaded' never looks like 'does not exist'.