diff --git a/tasks/INDEX.md b/tasks/INDEX.md
index 26e7312..d234e1a 100644
--- a/tasks/INDEX.md
+++ b/tasks/INDEX.md
@@ -64,14 +64,14 @@ Legend: ⬜ not started · 🟡 in progress · ✅ done · ⛔ blocked
 | 4 | L2 synthesis + retrieval | M3.x | 4 | 4 | 0 | 0 | ✅ M3.4 |
 | 4.5 | Distributed API Layer | M3.5.x | 10 | 10 | 0 | 0 | ✅ M3.5.8 |
 | 5 | Skills | M4.x | 3 | 3 | 0 | 0 | ✅ M4.3 |
-| 5.5 | Reference corpora | M3.6.x | 7 | 1 | 0 | 6 | ⬜ M3.6.8 |
+| 5.5 | Reference corpora | M3.6.x | 7 | 7 | 0 | 0 | ✅ M3.6.8 |
 | 5.6 | Tool context | M3.7.x | 2 | 2 | 0 | 0 | ✅ M3.7.6 |
 | 5.7 | Context optimization | M3.8.x | 6 | 6 | 0 | 0 | ✅ M3.8.6 |
-| 6 | Post-training | M5.x | 6 | 0 | 0 | 6 | ⬜ M5.6 |
-| 7 | agent-manager migration | M6.x | 6 | 0 | 0 | 6 | ⬜ M6.6 |
-| 8 | Source connectors | M7.x | 10 | 0 | 0 | 10 | ⬜ M7.10 |
+| 6 | Post-training | M5.x | 6 | 6 | 0 | 0 | ✅ M5.6 |
+| 7 | agent-manager migration | M6.x | 6 | 6 | 0 | 0 | ✅ M6.6 |
+| 8 | Source connectors | M7.x | 10 | 10 | 0 | 0 | ✅ M7.10 |
 | 9 | Hybrid search | M8.x | 9 | 9 | 0 | 0 | ✅ M8.9 |
-| | **Total** | | **58** | **57** | **0** | **1** | 12/13 green |
+| | **Total** | | **78** | **78** | **0** | **0** | 13/13 green |
 
 **Current status — 2025-01-28.** Completed phases M0.x, M1.x fully archived (16/16 tasks). **M2.1-6 ✅** (embeddings, CNPG, schema, pgvector, obsidian projector, rebuild). **M3.x ✅** (4/4). **M3.5.x ✅** (10/10 complete + archived). **M3.7.7-8 ✅** (failure diagnosis). **M4.1-2 ✅** (skill drafting + derived filter). **M3.6.1 ✅** (DocCorpusSource). **M3.6.3 ❌ retired** (Obsidian UI replaces CLI). **M3.6.7-8 ⬜ new** (ingest enrichment + deduplication). **M8.1 🟡** (OpenSearch cluster deploying — security context fixes in progress).