flux_updater 1.0.0

OTA update system for Flux applications with bytecode diff, version control, and seamless hot-reload capabilities.

Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

1.0.0 - 2026-01-06

Added

• FluxUpdateManager - Main client for checking and applying OTA updates
• OTA Server - Shelf-based REST API server for release management
  • POST /releases - Upload new release
  • GET /releases/:appId/latest - Get latest version info
  • GET /patches/:appId/:from/:to - Download incremental patch
  • GET /chunks/:appId/:version - Download full bytecode chunk
• Bytecode Diffing - XOR + GZip compression for efficient patch delivery (~5-10% of full size)
• Version Control - Semantic versioning with rollback support
• Code Signing - HMAC-SHA256 signature generation and verification
• CLI Tools
  • flux_updater compile - Compile Flux source to bytecode
  • flux_updater release - Create signed release package
  • flux_updater push - Upload release to OTA server
  • flux_updater info - Display bytecode file information
• ChunkSerializer - Binary serialization/deserialization for bytecode chunks
• DiffManager - Efficient binary diff generation and application
• VersionManager - Local version tracking and rollback management
• SignatureUtils - Cryptographic utilities for code signing

Security

• HMAC-SHA256 signature verification for all releases
• Integrity checks on downloaded patches and chunks
• Secure key management utilities

Documentation

• Complete API reference
• Quick start guide
• App Store compliance guidelines (iOS/Android)
• Architecture overview