diff --git a/1e2a-retry-individual-oids-on-not-our-ref.md b/1e2a-retry-individual-oids-on-not-our-ref.md
index a9cf38a..36722f5 100644
--- a/1e2a-retry-individual-oids-on-not-our-ref.md
+++ b/1e2a-retry-individual-oids-on-not-our-ref.md
@@ -48,6 +48,25 @@ This is particularly problematic because:
 
 ## Progress
 
+### 2026-01-27 [Session 17:30]
+- **Completed:** Basic retry logic implemented in migration-v2 branch
+  - Retry loop that excludes failed OIDs and retries with remaining OIDs (src/purgatory/sync/context.rs:363-471)
+  - Debug-level logging for retry operations
+  - Proper error reporting with URLs for all failure cases
+  
+- **Remaining work:**
+  - Throttling integration: Respect domain throttling limits between retries
+  - Metrics: Track retry attempts, successes, and confirmed missing OIDs
+  - OID prioritization: Implement tiered fetching strategy:
+    - First: Latest state events (kind 30617)
+    - Second: Earlier state events
+    - Third: PR refs
+    - After successful fetch, retry to get remaining OIDs that aren't confirmed missing
+  - Note: Rate limiting retries is better handled through throttling integration rather than separate backoff logic
+
+- **Not needed:**
+  - Partial success handling (git servers don't support partial fetches - they fail atomically)
+
 ### 2026-01-27 [Session]
 - Implemented Phase 1: retry logic for "not our ref" errors
 - When fetch fails with "not our ref", extracts missing OID and retries with remaining OIDs