# Changelog

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

The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

## [0.1.1] - 2025-12-08

### Changed
- Moved configuration from hard-coded values to external `config.json` file
- Configuration now loads from JSON file with graceful fallback to defaults
- Config file is loaded relative to script location for portability

### Added
- `config.json` - External configuration file for all application settings
- `load_config()` function with error handling and default value fallback
- Warning messages when config file is missing or malformed

## [0.1.0] - 2025-12-04

### Added
- Initial release of Series 4 Emitter
- Micromate (Series 4) heartbeat monitoring for Seismo Fleet Manager
- THORDATA folder scanner for MLG files
- Automatic detection of newest MLG file per unit by timestamp
- Age calculation and status classification (OK / LATE / STALE)
- Console heartbeat display with formatted output
- Optional HTTP POST to SFM backend endpoint
- Configurable age thresholds and scan intervals
- Debug logging capability
- Graceful error handling for filesystem and network operations