# Changelog

All notable changes to the small-batch tea roaster are documented here.

## [1.4.0] - 2026-07-12

### Added

- Roast profiles for high-mountain oolong, hojicha, and aged white tea.
- Per-batch notes for origin, harvest date, moisture level, and operator observations.
- Audible alerts for charge temperature, first aroma transition, and cooling completion.

### Fixed

- Temperature readings occasionally freezing during rapid cooling.
- Batch timers continuing to run after an emergency stop.
- Exported roast logs rounding airflow values incorrectly.

### Changed

- Improved heater response at low power for finer control during finishing.
- Increased cooling fan ramp-up speed to reduce carryover roasting.
- Updated the batch summary to display weight loss as both grams and percentage.

## [1.3.2] - 2026-06-21

### Added

- Optional preheat hold that maintains the target temperature before charging.
- Warning when a saved profile exceeds the roaster's recommended batch size.

### Fixed

- Fan speed resetting when a roast profile was paused and resumed.
- Duplicate batch IDs after restoring data from a backup.
- Fahrenheit labels appearing on Celsius temperature exports.

### Changed

- Reduced temperature overshoot during preheating.
- Extended roast-history retention from 90 days to one year.
- Clarified maintenance reminders for the chaff tray and exhaust screen.

## [1.3.0] - 2026-05-30

### Added

- Custom multi-stage roast profiles with independent heat, airflow, and duration settings.
- Live rate-of-rise graph for bean temperature.
- CSV export for production and quality-control records.

### Fixed

- Scale readings drifting when the cooling tray fan was active.
- Saved profiles losing their final cooling step after editing.
- Display flicker when switching quickly between manual and profile modes.

### Changed

- Reworked manual controls to keep heat and airflow adjustments on one screen.
- Profile names now support up to 48 characters.
- Default cooling time increased from three to four minutes for batches above 750 g.