diff --git a/CHANGELOG_PENDING.md b/CHANGELOG_PENDING.md
index a296771..3a373c5 100644
--- a/CHANGELOG_PENDING.md
+++ b/CHANGELOG_PENDING.md
@@ -5,6 +5,8 @@ Types: FEAT · FIX · UI · DATA · AI · INFRA
 
 ---
 
+{"d":"2026-04-04","t":"FIX","m":"Proxy Network: IP geo-lookup via ip-api.com on register/heartbeat (country_code + city now populated); heartbeat_count column + uptime_pct computed per heartbeat (was always 0.00); dedup fix — register returns existing token for same IP+port; heartbeat no longer overwrites registered IP (prevented IPv6 churn conflicts)"}
+{"d":"2026-04-04","t":"DATA","m":"Proxy Network: migration 023 — heartbeat_count column added, existing node uptime_pct backfilled, duplicate registration from same IPv6 removed (4 nodes → 3)"}
 {"d":"2026-04-04","t":"AI","m":"Blog Engine v4: STEP8b Reduction Pass (25-35% content cut, removes repeated concepts) + STEP8c Style Lock (tone consistency, scope/OPM fix, no inline SKUs) — pipeline now 12 steps, version v4-reduction-stylelock"}
 {"d":"2026-04-04","t":"DATA","m":"Blog calibration: Gold Standard 3 added (Style B troubleshooting — 2026-04-04 field feedback, flowing narrative, zero sections, failure as behavior not scenario)"}
 {"d":"2026-04-04","t":"FIX","m":"Flexoptix scraper: contentHash call fixed (was passing JSON.stringify string, now passes object directly)"}