diff --git a/README.md b/README.md
index e91853d9..db264e17 100644
--- a/README.md
+++ b/README.md
@@ -100,7 +100,7 @@ compliant = graph.check_decision_rules({"category": "vendor_selection"})  # poli
 ```bash
 semantica doctor
 # Python 3.11.9         pass
-# semantica 0.5.0       pass
+# semantica 0.5.1       pass
 # faiss vector store    pass
 # Config file           pass    ~/.semantica/config.yaml
 ```
@@ -1051,7 +1051,7 @@ $ semantica
 
 ╭─────────────────────────────────────────────────────────────────────────────╮
 │                                                                             │
-│    Knowledge Intelligence Platform  •  v0.5.0                              │
+│    Knowledge Intelligence Platform  •  v0.5.1                              │
 │                                                                             │
 │    🕸️  Context Graphs      ⚡ Decision Intelligence      🔍 Provenance      │
 │    🧩 Knowledge Fusion    🧠 Reasoning Engine          📊 Explainability    │
@@ -1083,7 +1083,7 @@ $ semantica kg build -s ./contracts/ -s ./reports/ --store neo4j
 $ semantica doctor
 
   Python 3.11.9         pass
-  semantica 0.5.0       pass
+  semantica 0.5.1       pass
   neo4j backend         pass     neo4j://localhost:7687
   faiss vector store    pass
   LLM provider          warn     OPENAI_API_KEY not set
@@ -1440,6 +1440,25 @@ For contributor / dev-server setup, see the full local setup guide:
 
 ---
 
+## What's New in v0.5.1
+
+- **Apache Arrow & Feather Ingestion:** Read `.arrow`, `.feather`, and `.ipc` files via `ArrowIngestor`; selective column reads, row limits, batch-aware iteration; auto-detected by extension and IPC magic bytes — `pip install semantica[ingest-arrow]`
+- **Knowledge Explorer Deployment Templates:** Ready-to-use `deploy/` configs for 7 platforms; fixed Dockerfile, full-stack Compose, `/api/health` endpoint, env-var wired `FALKORDB_HOST`/`ALLOWED_ORIGINS`
+
+  [![Docker](https://img.shields.io/badge/Docker-Compose-2496ED?style=flat-square&logo=docker&logoColor=white)](deploy/docker-compose.yml)
+  [![Railway](https://img.shields.io/badge/Railway-Deploy-0B0D0E?style=flat-square&logo=railway&logoColor=white)](deploy/railway/railway.toml)
+  [![Render](https://img.shields.io/badge/Render-Deploy-46E3B7?style=flat-square&logo=render&logoColor=black)](deploy/render/render.yaml)
+  [![Fly.io](https://img.shields.io/badge/Fly.io-Deploy-7B3FE4?style=flat-square&logo=flydotio&logoColor=white)](deploy/fly/fly.toml)
+  [![GCP Cloud Run](https://img.shields.io/badge/GCP-Cloud%20Run-4285F4?style=flat-square&logo=googlecloud&logoColor=white)](deploy/gcp/cloudrun-service.yaml)
+  [![Azure](https://img.shields.io/badge/Azure-Container%20Apps-0078D4?style=flat-square&logo=microsoftazure&logoColor=white)](deploy/azure/main.bicep)
+  [![Kubernetes](https://img.shields.io/badge/Kubernetes-Manifests-326CE5?style=flat-square&logo=kubernetes&logoColor=white)](deploy/kubernetes/)
+  [![Helm](https://img.shields.io/badge/Helm-Chart-0F1689?style=flat-square&logo=helm&logoColor=white)](deploy/helm/knowledge-explorer/)
+- **Neo4j Bulk CSV Export:** `Neo4jCSVExporter` for `neo4j-admin database import`; deterministic output, SHA-256 stable node IDs, multi-label support, `dry_run()` validation
+
+→ [Changelog](CHANGELOG.md)
+
+---
+
 ## What's New in v0.5.0
 
 - **Distance Intelligence:** 10× embedding cache, N×N semantic distance matrix, Ego Mode explorer, 5 new API endpoints
@@ -1480,6 +1499,7 @@ pip install semantica[vectorstore-qdrant]   # Qdrant vector store
 pip install semantica[vectorstore-pinecone] # Pinecone vector store
 pip install semantica[db-snowflake]         # Snowflake
 pip install semantica[ingest-parquet]       # Parquet / PyArrow
+pip install semantica[ingest-arrow]        # Apache Arrow, Feather, IPC
 pip install semantica[viz]                  # HTML interactive visualization
 pip install semantica[watch]                # Directory file watcher
 ```