diff --git a/.sdlc/branches/feature/data-models.yaml b/.sdlc/branches/feature/data-models.yaml
index 24e6d30..c7e354c 100644
--- a/.sdlc/branches/feature/data-models.yaml
+++ b/.sdlc/branches/feature/data-models.yaml
@@ -2,3 +2,5 @@ name: feature/data-models
 feature: data-models
 base_branch: main
 created_at: 2026-02-11T01:03:19.867726692Z
+merged_at: 2026-02-11T01:07:15.026997567Z
+merge_strategy: squash
diff --git a/.sdlc/features/data-models/manifest.yaml b/.sdlc/features/data-models/manifest.yaml
index 33b3c2a..c6a5be7 100644
--- a/.sdlc/features/data-models/manifest.yaml
+++ b/.sdlc/features/data-models/manifest.yaml
@@ -2,7 +2,7 @@ slug: data-models
 title: Core Data Models & Persistence
 created: 2026-02-11T01:01:34.898239681Z
 branch: feature/data-models
-phase: merge
+phase: released
 phase_history:
     - phase: draft
       entered: 2026-02-11T01:01:34.898239681Z
@@ -30,6 +30,9 @@ phase_history:
       exited: 2026-02-11T01:07:08.91325329Z
     - phase: merge
       entered: 2026-02-11T01:07:08.91325329Z
+      exited: 2026-02-11T01:07:15.02758418Z
+    - phase: released
+      entered: 2026-02-11T01:07:15.02758418Z
 artifacts:
     audit:
         status: passed
diff --git a/.sdlc/state.yaml b/.sdlc/state.yaml
index 4795a4d..2530fe5 100644
--- a/.sdlc/state.yaml
+++ b/.sdlc/state.yaml
@@ -10,8 +10,8 @@ active_work:
           branch: feature/task-management-ui
           phase: ready
 blocked: []
-last_updated: 2026-02-11T01:03:20.536148072Z
-last_action: CREATE_BRANCH
+last_updated: 2026-02-11T01:07:15.028540811Z
+last_action: MERGE_FEATURE
 last_actor: cli
 history:
     - timestamp: 2026-02-11T01:01:34.898710806Z
@@ -69,3 +69,8 @@ history:
       feature: data-models
       actor: cli
       result: success
+    - timestamp: 2026-02-11T01:07:15.028539308Z
+      action: MERGE_FEATURE
+      feature: data-models
+      actor: cli
+      result: success