Merge pull request #245 from TIDES-transit/develop

Formalizing Release v1.0 -- Stable Baseline

Author: chrisyamas

.markdownlint.yaml

@@ -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

CHANGELOG.md

@@ -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