docs(2meet-data-optimizer): add PR-106 to PR-110 to the 1.3.0 release notes

- Changed: deferred table upgrades (PR-107), index lock on the primary
  (PR-108), cold cache flush by version (PR-110); Fixed: dropped tables in
  post status sync (PR-106)
- Verify: composer test
- PR: PR-101 (follow-up)

readme.txt

@@ -114,6 +114,9 @@ The Classifier tab analyzes your existing `wp_postmeta` data (access frequency,
 * Logger info / notice lines only with WP_DEBUG_LOG (filter `tmdo_log_info`)
 * The public listings REST output withholds email, phone, address and IP fields even when declared public
 * Admin form posts are handled before the page renders; uninstall.php globals are prefixed
+* Existing flat tables are upgraded from WP-CLI or WP-Cron only; a group waiting for its upgrade uses native meta, then a drift fix rebuilds it
+* The index lock goes to the primary under read/write splitting; clearing the cold cache bumps a version instead of scanning the object cache group
+* Groups whose flat table was dropped no longer cause database errors on post status changes
 
 = 1.2.0 =
 * `wp tmdo drift-check <entity> [--group] [--sample] [--fix]`: reports flat-vs-native drift per key (miss / diff / extra) and rebuilds drifted flat rows from native; native meta is never written, and aeav_only sites are refused