Version 5.4.0 (2021-04-23)

Added EntityRedirectLookup::FOR_UPDATE constant
Added EntityRedirectTargetLookup (extracted from EntityRedirectLookup)

Version 5.3.0 (2020-03-10)

Allow installing with data-values/data-values 3.0.0

Version 5.2.0 (2020-03-10)

Allow installing with wikimedia/assert 0.5.0

Version 5.1.0 (2020-02-13)

Added the ItemTermStoreWriter and PropertyTermStoreWriter interfaces.

Version 5.0.0 (2020-01-24)

Stopped accepting null for term type or language in TermBuffer::prefetchTerms()

Version 4.0.0 (2020-01-06)

Added FallbackLabelDescriptionLookup interface
Stopped supporting hhvm and added support for php 7.3 and 7.4
Dropped support for diff 2.3 and added support for 3.2

Version 3.15.0 (2019-04-24)

Added ItemLookup implementations
- LegacyAdapterItemLookup which is an adapter to EntityLookup
- InMemoryEntityLookup which is a test double
Added PropertyLookup implementations
- LegacyAdapterPropertyLookup which is an adapter to EntityLookup
- InMemoryEntityLookup which is a test double
Added constructor to InMemoryEntityLookup

Version 3.14.0 (2019-04-16)

Added SeekableEntityIdPager
Added InMemoryEntityIdPager

Version 3.13.0 (2019-02-05)

Added ExceptionIgnoringEntityLookup
Bumped minimum PHP requirement to 7.x or HHVM

Version 3.12.0 (2018-11-06)

Added compatibility with Wikibase DataModel 9.x
Removed compatibility with Diff 1.x
UnresolvedEntityRedirectException: Mention source entity id in message (#200)

Version 3.11.0 (2018-08-07)

Added compatibility with Wikibase DataModel 8.x
Added compatibility with DataValues 2.x
Raised minimum PHP version to 5.6

Version 3.10.0 (2018-05-31)

Added ReferencedEntityIdLookup interface, along with:
- EntityRetrievingClosestReferencedEntityIdLookup reference implementation
- MaxReferenceDepthExhaustedException
- MaxReferencedEntityVisitsExhaustedException
- ReferencedEntityIdLookupException
Added LabelLookup interface.
- Relaxed EntityIdLabelFormatter to only require a LabelLookup.

Version 3.9.0 (2018-01-18)

Added EntityIdComposer.
Added DisabledEntityTypesEntityLookup.

Version 3.8.0 (2017-03-17)

Fixed EntityRetrievingTermLookup silently failing for entities that do not implement FingerprintProvider (#171).
Introduced caching in PrefixMappingEntityIdParserFactory (#162).
Added compatibility with Wikibase DataModel 7.x.

Version 3.7.0 (2016-11-14)

Raised minimum PHP version to 5.5.
Compatible with Wikibase DataModel 6.3
Added EntityIdPager from Wikibase\Repo\Store.
Added services for foreign entities:
- DispatchingEntityLookup
- PrefixMappingEntityIdParser
- PrefixMappingEntityIdParserFactory
- UnknownForeignRepositoryException

Version 3.6.0 (2016-05-13)

Added StatementListDiffer (was in the package private Internal namespace before).
Added StatementListPatcher (replaces an incompatible package private class with the same name).
Added TermListPatcher.
Fixed FingerprintPatcher ignoring change operations on aliases that are marked as "not associative".
Fixed StatementGuidValidator not rejecting strings with a newline at the end.

Version 3.5.0 (2016-03-14)

Added compatibility with Wikibase DataModel 6.x

Version 3.4.0 (2016-02-22)

Added RestrictedEntityLookup::reset

Version 3.3.0 (2016-02-18)

Added compatibility with Wikibase DataModel 5.0.
Added FILTER_TYPE constant to DataTypeStatementFilter, NullStatementFilter and PropertySetStatementFilter.
Fixed StatementGuidParser not parsing GUIDs with multiple dollar signs.

Version 3.2.0 (2015-12-03)

Added StatementGrouper interface and the most basic implementations:
- NullStatementGrouper
- ByPropertyIdStatementGrouper
- FilteringStatementGrouper
Added StatementFilter implementations for use in FilteringStatementGrouper:
- NullStatementFilter
- DataTypeStatementFilter
- PropertySetStatementFilter

Version 3.1.1 (2015-11-15)

Made EntityRetrievingTermLookup handle EntityLookupException (T118581)

Version 3.1.0 (2015-10-16)

Added InMemoryEntityLookup::addException
Added PropertyDataTypeMatcher
Added InProcessCachingDataTypeLookup
Added optional message and previous exception parameters to the UnresolvedEntityRedirectException constructor

Version 3.0.0 (2015-09-16)

Breaking changes:

Removed EntityRedirectResolvingDecorator
Removed UnresolvedRedirectException
EntityLookup::hasEntity now throws EntityLookupException

Non breaking changes:

Added UnresolvedEntityRedirectException
Added EntityAccessLimitException
RestrictedEntityLookup now throws EntityAccessLimitException

Version 2.0.1 (2015-09-10)

Fixed uncaught exception in EntityIdLabelFormatter::formatEntityId (T112003)

Version 2.0.0 (2015-09-02)

Moved EntityIdParser back to Wikibase DataModel:

Removed EntityIdParser
Removed EntityIdParsingException
Removed BasicEntityIdParser
Removed DispatchingEntityIdParser

Changed all Lookup contracts:

All lookups now return null when there is no value found as a result of the lookup:
- EntityRetrievingTermLookup returns null instead of throwing OutOfBoundsException.
- LanguageLabelDescriptionLookup returns null instead of throwing OutOfBoundsException.
- ItemLookup implementations should return null instead of throwing ItemNotFoundException.
- LabelDescriptionLookup implementations should return null instead of OutOfBoundsException.
- PropertyLookup implementations should return null instead of PropertyNotFoundException.
- TermLookup implementations should return null instead of OutOfBoundsException.
All lookups now throw exceptions in exceptional circumstances:
- EntityLookup implementations should throw EntityLookupException instead of returning null.
- EntityRedirectLookup implementations should throw EntityRedirectLookupException instead of returning false.
- EntityRetrievingDataTypeLookup throws PropertyDataTypeLookupException instead of PropertyNotFoundException.
- EntityRetrievingTermLookup throws TermLookupException instead of OutOfBoundsException.
- InMemoryDataTypeLookup throws PropertyDataTypeLookupException instead of PropertyNotFoundException.
- ItemLookup implementations should throw ItemLookupException instead of ItemNotFoundException.
- LabelDescriptionLookup implementations should throw LabelDescriptionLookupException instead of OutOfBoundsException.
- LanguageLabelDescriptionLookup throws LabelDescriptionLookupException instead of OutOfBoundsException.
- PropertyDataTypeLookup implementations should throw PropertyDataTypeLookupException instead of PropertyNotFoundException.
- PropertyLookup implementations should throw PropertyLookupException instead of PropertyNotFoundException.
- TermLookup implementations should throw TermLookupException instead of OutOfBoundsException.
Removed Lookup\ItemNotFoundException
Removed Lookup\PropertyNotFoundException
Added Lookup\EntityLookupException
Added Lookup\EntityRedirectLookupException
Added Lookup\LabelDescriptionLookupException
Added Lookup\TermLookupException
Added Lookup\ItemLookupException
Added Lookup\PropertyLookupException

Moved over various classes and interfaces from Wikibase Lib:

Added Lookup\RedirectResolvingEntityLookup
Added Lookup\RestrictedEntityLookup
Added Diff\EntityTypeAwareDiffOpFactory (previously called WikibaseDiffOpFactory in Lib)

Other additions:

Added Lookup\InMemoryEntityLookup

Version 1.1.0 (2015-08-10)

Moved over various classes and interfaces from Wikibase Lib:

DataValue\ValuesFinder
Entity\EntityPrefetcher
Entity\EntityRedirectResolvingDecorator
Entity\NullEntityPrefetcher
EntityId\EntityIdFormatter
EntityId\EntityIdLabelFormatter
EntityId\EscapingEntityIdFormatter
EntityId\PlainEntityIdFormatter
EntityId\SuffixEntityIdParser
Lookup\EntityLookup
Lookup\EntityRedirectLookup
Lookup\EntityRetrievingDataTypeLookup
Lookup\EntityRetrievingTermLookup
Lookup\LabelDescriptionLookup
Lookup\LanguageLabelDescriptionLookup
Lookup\TermLookup
Statement\StatementGuidValidator
Term\PropertyLabelResolver
Term\TermBuffer

These have not been changed apart from now residing in a different namespace, and in some cases using dependencies that have similarly been moved.

Added Entity\UnresolvedRedirectException, similar to the one in Wikibase Lib, though without revision info

Version 1.0.0 (2015-07-28)

Initial release containing

Entity diffing and patching functionality in Services\Diff
EntityIdParser and basic implementations in Services\EntityId
ItemLookup, PropertyLookup and PropertyDataTypeLookup interfaces
Statement GUID parser and generators in Services\Statement
ByPropertyIdGrouper