| ⇢ | A | ChangeRevisionFieldMixin added | |
| ⇢ | A | ChangeRevisionMongoDBAccess added |
| ⇢ | A | ChangeRevisionFieldMixin.get_indexes() added | |
| ⇢ | A | ChangeRevisionMongoDBAccess.update() added | |
| ⇢ | A | ChangeRevisionMongoDBAccess.insert() added | |
| ⇢ | A | ChangeRevisionMongoDBAccess.add_or_update() added | |
| ⇢ | A | ChangeRevisionMongoDBAccess.get() added |