diff --git a/conductor/tracks/consolidate_cruft_and_log_taxonomy_20260228/plan.md b/conductor/tracks/consolidate_cruft_and_log_taxonomy_20260228/plan.md
index 3ebd85d..3676f3f 100644
--- a/conductor/tracks/consolidate_cruft_and_log_taxonomy_20260228/plan.md
+++ b/conductor/tracks/consolidate_cruft_and_log_taxonomy_20260228/plan.md
@@ -18,7 +18,7 @@
 - [x] Task: Execute the migration script and verify the project root is clean. (61d513a)
 - [x] Task: Conductor - User Manual Verification 'Phase 3: Migration Script' (Protocol in workflow.md) (61d513a)
 
-## Phase 4: Regression Testing & Final Verification
-- [ ] Task: Run a full session through the GUI and verify that all logs and temp files are created in the new sub-directories.
-- [ ] Task: Verify that `tests/artifacts/` is correctly ignored by git.
-- [ ] Task: Conductor - User Manual Verification 'Phase 4: Regression Testing & Final Verification' (Protocol in workflow.md)
+## Phase 4: Regression Testing & Final Verification [checkpoint: 6326546]
+- [x] Task: Run a full session through the GUI and verify that all logs and temp files are created in the new sub-directories. (6326546)
+- [x] Task: Verify that `tests/artifacts/` is correctly ignored by git. (6326546)
+- [x] Task: Conductor - User Manual Verification 'Phase 4: Regression Testing & Final Verification' (Protocol in workflow.md) (6326546)