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chrisyamas merged 2 commits into from
Dec 26, 2025
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Formalizing Release v1.0 -- Stable Baseline #245

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88db344
Add CHANGELOG.md establishing v1.0 stable baseline
chrisyamas Dec 23, 2025
048ea8c
Updated to allow duplicate headings per version
chrisyamas Dec 23, 2025
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4 changes: 4 additions & 0 deletions .markdownlint.yaml
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Expand Up @@ -19,3 +19,7 @@ MD033: false

# Remove "no emphasis as heading"
MD036: false

# Allow duplicate headings under different parents (needed for CHANGELOG.md)
MD024:
siblings_only: true
45 changes: 45 additions & 0 deletions CHANGELOG.md
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@@ -0,0 +1,45 @@
# Changelog

All notable changes to the TIDES specification 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).

## [Unreleased]

## [1.0] - 2025-12-23

### Changed

- Promoted to stable release (no normative changes from v1.0-beta.1)

### Added

- CHANGELOG.md to track specification changes

## [1.0-beta.1] - 2024-01-06

### Added

- Initial pre-release of the TIDES data specification
- **Core Tables:**
- `vehicle_locations` - Timestamped vehicle locations and speeds.
- `passenger_events` - Timestamped passenger-related events, including boardings and alightings.
- `fare_transactions` - Timestamped fare transaction, associated with devices.
- `stop_visits` - Summarized boarding, alighting, arrival, departure, and other events (kneel engaged, ramp deployed, etc.) by trip and stop for each service date.
- `trips_performed` - Trips performed for each service date.
- `station_activities` - Summarized transactions, entries, and exits by stop or station and time period for each service date (for events not associated with a trip).
- `devices` - Measurement devices, such as AVL, APC, and AFC devices, associated with vehicles or stops or stations.
- `train_cars` - Assets that comprise vehicles, such as train cars, with descriptive information.
- `vehicle_train_cars` - Relationships between assets and vehicles.
- `vehicles` - Vehicles, including buses and train consists, with descriptive information.
- `operators` - Personnel who operate vehicles.
- TIDES Data Package Profile for data packaging
- Sample template data package structure
- Validation tools and test scripts
- Documentation site with governance policies
- Change management policy with semantic versioning

[Unreleased]: https://github.com/TIDES-transit/TIDES/compare/v1.0...HEAD
[1.0]: https://github.com/TIDES-transit/TIDES/compare/v1.0-beta.1...v1.0
[1.0-beta.1]: https://github.com/TIDES-transit/TIDES/releases/tag/v1.0-beta.1