# Changelog > **Note:** This file is a technical changelog for developers and maintainers. For user-focused highlights, migration notes, and upgrade instructions, see [README.MD](./README.MD). All notable changes to this project will be documented in this file. ## [3.2] - Stable Release - 2025-06-13 ### Added (3.2) - **Enhanced Installer Script**: Major improvements to the automated installer - **Docker Deployment Option**: Complete Docker deployment workflow as alternative to native installation - **Selectable Configuration Directory**: Users can now customize config directory instead of hardcoded paths - **Installation Type Selection**: Choice between native systemd service or Docker deployment - **Automated Docker Setup**: Generates docker-compose.yml, Dockerfile, and management scripts - **Enhanced Documentation**: Comprehensive update of all documentation files to match current codebase - **Protocol Specification Updates**: Detailed protocol documentation with implementation examples - **Configuration Validation**: Improved configuration structure validation and error reporting - **Developer Resources**: Updated build instructions and development setup guides - **Repository Cleanup**: Comprehensive .gitignore for all major IDEs and development tools ### Changed (3.2) - **Installer User Experience**: - Removed all Unicode symbols and emoticons for universal terminal compatibility - Eliminated duplicate output during installation completion - Streamlined configuration process with better prompts - **Documentation Structure**: Reorganized documentation for better clarity and maintenance - **Configuration Examples**: Updated all configuration examples to reflect current options - **API Documentation**: Enhanced API endpoint documentation with comprehensive examples ### Fixed (3.2) - **Installer Compatibility**: Removed Unicode dependencies ensuring compatibility with all terminal types - **Output Duplication**: Fixed duplicate completion messages in installer workflow - **Path Configuration**: Enhanced flexibility in directory structure setup ### Completed (3.2) - **Feature Development**: Active development of new features and improvements - **Testing Enhancements**: Expanded test coverage and validation - **Performance Optimizations**: Ongoing performance improvements and monitoring --- ## [3.1-Stable] - 2025-06-08 ### Added (3.1) - **v3 (mod_http_upload_external) Support**: Implemented secure file uploads using HMAC-SHA256 validation and expiration checks, specifically designed for Prosody's mod_http_upload_external compatibility. - **JWT Authentication**: Complete JWT token authentication system with configurable algorithms and expiration times. - **Multiple Authentication Protocols**: Support for legacy v1, enhanced v2, token-based, and v3 HMAC protocols alongside JWT authentication. - **File Naming Strategy**: Configurable file naming options including HMAC-based, original filename preservation, or no specific naming convention. - **Advanced Configuration Structure**: Comprehensive configuration sections including server, security, uploads, downloads, logging, deduplication, ISO, timeouts, versioning, ClamAV, Redis, and workers. ### Changed (3.1) - **Enhanced HMAC Validation**: Improved validation logic to support multiple protocol versions (v1, v2, token, v3) with proper fallback mechanisms. - **Authentication Priority**: Implemented authentication priority system with JWT taking precedence when enabled, falling back to HMAC protocols. - **Network Protocol Support**: Enhanced IPv4/IPv6 dual-stack support with protocol forcing options (ipv4, ipv6, auto). - **Configuration Hot-Reloading**: Added support for reloading logging configuration via SIGHUP signal without full server restart. ### Fixed (3.1) - **Protocol Compatibility**: Addressed compatibility issues with different HMAC protocol versions and mod_http_upload_external clients. - **Error Handling**: Improved error handling for invalid or expired signatures during file uploads. - **Configuration Validation**: Enhanced configuration validation to prevent common misconfigurations. --- ## [3.0-Stable] - 2025-06-07 ### Added (3.0) - Official Docker Compose support and example (`dockerenv/docker-compose.yml`). - Multi-stage Dockerfile for minimal images (`dockerenv/dockerbuild/Dockerfile`). - Extended documentation for Docker, Compose, and deployment paths. - Quickstart and configuration examples for containerized environments. - Monitoring and Prometheus metrics documentation improvements. - **Seamless IPv4 and IPv6 support:** The server now automatically supports both IPv4 and IPv6 connections out of the box, with improved dual-stack handling and configuration via `forceprotocol`. ### Changed (3.0) - Minimum Go version is now **1.24** (was 1.20). - Updated all documentation and config examples to reflect new version and Docker usage. - Improved configuration normalization and environment variable overrides for containers. - Enhanced worker pool and resource auto-scaling logic. ### Fixed (3.0) - Minor bugfixes for config parsing and Docker path handling. - Improved error messages for missing or invalid configuration in container environments. --- ## [2.8-Stable] - 2026-05-01 ### Added (2.8) - Version check history for improved tracking. - Enhanced ClamAV scanning with concurrent workers. ### Changed (2.8) - Improved ISO-based storage for specialized use cases. - Auto-scaling workers for optimized performance. ### Fixed (2.8) - Minor issues in worker thread adjustments under high load. --- ## [2.7] - 2026-02-10 ### Added (2.7) - Concurrency improvements and auto-scaling worker enhancements - Cleanup and removal of unused parameters in sorting functions ### Changed (2.7) - Additional logging for file scanning operations ### Fixed (2.7) - Minor stability issues related to ISO container mounting - Fixed dual stack for upload (IPv4/IPv6) --- ## [2.6-Stable] - 2025-12-01 ### Added (2.6) - Deduplication support (removes duplicate files). - ISO Container management. - Dynamic worker scaling based on CPU & memory. - PreCaching feature for faster file access. ### Changed (2.6) - Worker pool scaling strategies for better performance. - Enhanced logging with rotating logs using lumberjack. ### Fixed (2.6) - Temporary file handling issues causing "Unsupported file type" warnings. - MIME type checks for file extension mismatches. --- ## [2.5] - 2025-09-15 ### Added (2.5) - Redis caching integration for file metadata. - ClamAV scanning for virus detection before finalizing uploads. ### Changed (2.5) - Extended the default chunk size for chunked uploads. - Updated official documentation links. ### Fixed (2.5) - Edge case with versioning causing file rename conflicts. --- ## [2.0] - 2025-06-01 ### Added (2.0) - Chunked file uploads and downloads. - Resumable upload support with partial file retention. ### Changed (2.0) - Moved configuration management to Viper. - Default Prometheus metrics for tracking memory & CPU usage. ### Fixed (2.0) - Race conditions in file locking under heavy concurrency. --- ## [1.0] - 2025-01-01 ### Added (1.0) - Initial release with HMAC-based authentication. - Basic file upload/download endpoints. - Logging and fundamental configuration using .toml files.