Version 1.4.1 - Localhost license bypass and auto-updates

Added localhost/self-licensing license bypass and WordPress auto-update
integration from license server.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

CHANGELOG.md

@@ -5,6 +5,63 @@ All notable changes to WooCommerce Tier and Package Prices will be documented in
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.4.1] - 2026-02-03
+
+### Added
+
+- **Localhost License Bypass**: License validation is automatically bypassed for localhost environments
+  - Supports localhost, 127.0.0.1, ::1 (IPv6), `*.localhost`, `*.local`, `*.test`, `*.example`, `*.invalid`
+  - Private IP ranges (Docker, VMs) are also recognized as localhost
+  - Displays "(Localhost environment - license validation bypassed)" in License Status
+
+- **Self-Licensing Bypass**: License validation is bypassed when the site URL matches the license server URL
+  - Useful for testing the plugin on the license server itself
+  - Displays "(Self-licensing server - license validation bypassed)" in License Status
+
+- **Auto-Update System**: Plugin can now receive updates directly from the license server
+  - New "Auto-Updates" settings tab under WooCommerce > Tier & Package Prices
+  - **Enable Update Notifications**: Toggle to check for available updates (default: enabled)
+  - **Automatically Install Updates**: Optional auto-install when WordPress performs background updates
+  - **Check Frequency**: Configurable hours between update checks (1-168 hours, default: 12)
+  - **Update Status**: Shows current version and available update with "Check for Updates" button
+  - Updates appear in WordPress Dashboard > Updates with full plugin info
+
+- **New Classes**:
+  - `WC_TPP_License_Checker`: Singleton class handling license validation with localhost/self-licensing bypass
+  - `WC_TPP_Update_Checker`: Singleton class integrating with WordPress plugin update system
+
+### Technical Details
+
+**License Checker Features**:
+
+- `is_localhost()`: Detects localhost environments using multiple patterns
+- `is_self_licensing()`: Compares license server URL with site URL
+- `is_license_valid()`: Main entry point with bypass logic
+- `get_bypass_reason()`: Returns 'localhost', 'self_licensing', or null
+- Cached validation (1 hour success, 5 minutes error)
+
+**Update Checker Features**:
+
+- Hooks into `pre_set_site_transient_update_plugins` for update detection
+- Hooks into `plugins_api` for update modal information
+- Hooks into `http_request_args` for license authentication
+- Hooks into `auto_update_plugin` for background updates
+- Can be disabled via `WC_TPP_DISABLE_AUTO_UPDATE` constant
+
+**New Settings Options**:
+
+- `wc_tpp_update_notification_enabled` (yes/no, default: yes)
+- `wc_tpp_auto_install_enabled` (yes/no, default: no)
+- `wc_tpp_update_check_frequency` (number, default: 12)
+
+**Update Server Endpoint**:
+
+- POST to `/wp-json/wc-licensed-product/v1/update-check`
+- Request body: `{license_key, domain, plugin_slug, current_version}`
+- Response: `{success, update_available, version, download_url, ...}`
+
+---
+
 ## [1.4.0] - 2026-01-29
 
 ### Added