docs: update CHANGELOG

CHANGELOG.md

@@ -5,7 +5,20 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [Unreleased]
+## [1.0.0-alpha6] - 2025-02-20
+
+### Added
+
+- Database SQLite support. (tank#52)
+
+### Changed
+
+- **BREAKING:** There is only one migration step.  You need to re-create the database and delete the existing files.
+- Update Go version to 1.23 (tank#84)
+
+### Fixed
+
+- /imports endpoint doesn’t return running imports (tank#85)
 
 ### Removed
 
@@ -19,7 +32,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - The setting `DATABASE_URL` is now read from the environment.
 - The settings `CORS_ALLOWED_ORIGINS`, `CORS_ALLOWD_HEADER`, `CORS_ALLOWED_METHODS`,
  `TANK_CORS_ALLOW_CREDENTIALS` and `TANK_CORS_DEBUG` are read from the environment (tank#78)
-- `make release' target to the Makefile (tank#70)
+- `make release` target to the Makefile (tank#70)
 
 ### Changed