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- Add ability to specify custom ``history_reason`` field (gh-379)
- Add ability to specify custom ``history_id`` field (gh-368)
- Add HistoricalRecord instance properties ``prev_record`` and ``next_record`` (gh-365)
- Can set admin methods as attributes on object history change list template (gh-390)
- Fixed compatibility of >= 2.0 versions with old-style middleware (gh-369)