diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..4d04af2
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,44 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+## [v0.1.3] - 2026-02-05
+
+### Added
+- Sensor config endpoints (GET/PUT `/api/v1/sensors/<id>/config`)
+- OTA trigger endpoint (`POST /api/v1/sensors/<id>/ota`)
+- Calibration trigger endpoint (`POST /api/v1/sensors/<id>/calibrate`)
+- Heartbeat timeout detection (marks sensors offline)
+- Sensor metrics history endpoint
+- OpenAPI 3.0 spec with Swagger UI at `/api/docs`
+
+## [v0.1.2] - 2026-02-05
+
+### Added
+- IEEE OUI database download (`make oui`)
+- MAC vendor lookup utility
+- BLE company_id to manufacturer mapping (30+ vendors)
+- Device profile enrichment in API responses
+- Export endpoints: devices.csv, devices.json, alerts.csv, probes.csv
+- Auto-populate vendor field on device creation
+
+## [v0.1.1] - 2026-02-05
+
+### Added
+- Makefile start/stop/restart/status commands
+- Health endpoint with uptime tracking (`/api/v1/health`)
+- CLI module (`esp32-web` command)
+- Database migrations via Flask-Migrate
+- Listen on all interfaces (0.0.0.0:5500)
+- `make help` target
+
+## [v0.1.0] - 2026-02-05
+
+### Added
+- Flask app factory with blueprint architecture
+- SQLAlchemy 2.x models: Sensor, Device, Sighting, Alert, Event, Probe
+- REST API endpoints for all models
+- UDP collector with data stream parsers
+- pytest fixtures and initial tests
+- Containerfile for podman
+- Makefile for common tasks
diff --git a/TASKS.md b/TASKS.md
index 340c470..d28da51 100644
--- a/TASKS.md
+++ b/TASKS.md
@@ -2,24 +2,35 @@
 
 **Last Updated:** 2026-02-05
 
-## Current Sprint: v0.1.3 — Fleet Management
+## Current Sprint: v0.1.4 — Zones & Presence
 
 ### P1 - High
+- [ ] Zone model (name, description, location)
+- [ ] `POST /api/v1/zones` — create zone
+- [ ] `GET /api/v1/zones` — list zones
+- [ ] `PUT /api/v1/zones/<id>` — update zone
+- [ ] Assign sensors to zones
+
+### P2 - Normal
+- [ ] Device zone tracking (which zone a device is in)
+- [ ] Dwell time analysis
+- [ ] Presence history endpoint
+
+### P3 - Low (carried from v0.1.3)
+- [ ] Add pagination to all list endpoints
+- [ ] Add request logging middleware
+
+## Completed: v0.1.3 — Fleet Management
+
 - [x] `GET /api/v1/sensors/<id>/config` — read sensor config
 - [x] `PUT /api/v1/sensors/<id>/config` — update sensor config
 - [x] `POST /api/v1/sensors/<id>/ota` — trigger OTA update
 - [x] `POST /api/v1/sensors/<id>/calibrate` — trigger calibration
-
-### P2 - Normal
 - [x] Sensor heartbeat timeout detection
 - [x] Sensor metrics history endpoint
+- [x] OpenAPI 3.0 spec with Swagger UI
 
-### P3 - Low
-- [ ] Add pagination to all list endpoints
-- [x] Add OpenAPI/Swagger spec
-- [ ] Add request logging middleware
-
-## Completed: v0.1.2 - OSINT Features
+## Completed: v0.1.2 — OSINT Features
 
 - [x] IEEE OUI database download (`make oui`)
 - [x] MAC vendor lookup utility
@@ -28,7 +39,7 @@
 - [x] Export endpoints (devices.csv, devices.json, alerts.csv, probes.csv)
 - [x] Auto-populate vendor on device creation
 
-## Completed: v0.1.1 - Server Management
+## Completed: v0.1.1 — Server Management
 
 - [x] Makefile start/stop/restart/status commands
 - [x] Health endpoint with uptime tracking
@@ -36,7 +47,7 @@
 - [x] Initial database migration
 - [x] Listen on all interfaces (0.0.0.0:5500)
 
-## Completed: v0.1.0 - Project Scaffold
+## Completed: v0.1.0 — Project Scaffold
 
 - [x] Flask app factory pattern
 - [x] SQLAlchemy 2.x models
diff --git a/TODO.md b/TODO.md
index 91ee3f2..d962345 100644
--- a/TODO.md
+++ b/TODO.md
@@ -5,31 +5,23 @@
 - [ ] Pagination for all list endpoints
 - [ ] Filter by date range
 - [ ] Sort options
-- [ ] OpenAPI/Swagger spec generation
 - [ ] Rate limiting (flask-limiter)
 - [ ] API authentication (JWT or API keys)
+- [ ] Request logging middleware
 
 ## OSINT
 
-- [ ] IEEE OUI database download script
-- [ ] MAC vendor lookup on device creation
-- [ ] BLE company ID database
 - [ ] Device fingerprinting by advertisement patterns
 - [ ] SSID categorization (home, corporate, mobile hotspot)
 
 ## Collector
 
-- [ ] Heartbeat timeout (mark sensor offline)
 - [ ] CSI data storage (optional, high volume)
 - [ ] Data retention policy (auto-cleanup old records)
-- [ ] Metrics collection (packets/sec, errors)
 
 ## Fleet Management
 
-- [ ] Sensor config read/write
-- [ ] OTA orchestration
-- [ ] Calibration management
-- [ ] Bulk commands
+- [ ] Bulk commands (multi-sensor OTA/config)
 
 ## Deployment