| ⇢ | A | Metadata added | |
| ⇢ | A | Service added | |
| ⇢ | A | Subject added | |
| ⇢ | A | Place added | |
| ⇢ | A | Version20200622125414 added | |
| A | ↛ | DataFilter removed | |
| A | ↛ | KeyNotExistsException removed | |
| A | ↛ | NotEqualDataException removed | 
| ⇢ | B | Version20200622125414::convertLegacyMetadata() added | |
| ⇢ | A | ArticleHydrator::populateMetadata() added | |
| ⇢ | A | Version20200622125414::postUp() added | |
| ⇢ | A | Version20200622125414::up() added | |
| ⇢ | A | Version20200622125414::down() added | |
| ⇢ | A | Subject::getScheme() added | |
| ⇢ | A | Place::setName() added | |
| ⇢ | A | Metadata::removePlace() added | |
| ⇢ | A | Metadata::getEdNote() added | |
| ⇢ | A | Subject::setScheme() added | |
| ⋮ | view more | ||
| A | ↛ | DataFilter::containsItem() removed | |
| A | ↛ | DataFilter::contains() removed | |
| A | ↛ | DataFilter::loadData() removed | |
| A | ↛ | DataFilter::reset() removed | |
| A | ↛ | KeyNotExistsException::__construct() removed | |
| A | ↛ | NotEqualDataException::__construct() removed | |