v4.0.0

🚨 Breaking Changes

• ignore indexed properties by @latonz in #1351
• add enum underlying type conversion by @latonz in #1352
• strict mappings by default by @latonz in #1353
• support mapping properties of custom collection mappings by @latonz in #1364
• improve handling of read-only and immutable types by @latonz in #1413
• improve member matching performance for member names with lots of upper case letters by @latonz in #1447
• enum from/to string explicit mappings by @BeeTwin in #1483

🚀 Features

• introduce MapValueAttribute to map constant values and method provided values by @latonz in #1335
• add MappingTarget attribute to set the mapping target as the first parameter by @latonz in #1376
• support additional mapping method parameters by @latonz in #1400
• inline methods consisting of a single return statement or local variable declaration expression by @hartmair in #1422
• support private constructors by @latonz in #1405
• improve handling of read-only and immutable types by @latonz in #1413
• improve constructor mapping readability by @aradalvand in #1448
• add support for mappers being nested under interfaces or records by @david-driscoll in #1464
• enum from/to string explicit mappings by @BeeTwin in #1483
• enum from/to string naming strategies for different letter casings by @BeeTwin in #1486
• enum from/to string naming strategies for DescriptionAttribute and EnumMemberAttribute by @latonz in #1507

🐛 Bug Fixes

• adjust diagnostic messages to be correct when applied with MapValue by @latonz in #1332
• allow same-name members with different casings by @latonz in #1350
• replace invalid MapPropertyAttribute constructors with valid versions by @latonz in #1354
• failing projection with static mapper from another assembly by @trejjam in #1418
• collect EnumerateUnmappedOrConfiguredTargetMembers to prevent collection was modified exception by @trejjam in #1438
• support inline expression with casting by @trejjam in #1419
• correct map nested interfaced enumerations by @latonz in #1404
• only initialize unflattened nullable target members when needed by @latonz in #1408
• improve handling of read-only and immutable types by @latonz in #1413
• improve member matching performance for member names with lots of upper case letters by @latonz in #1447
• initialize nullable values when assigning null to a child member by @latonz in #1449
• report inaccessible constructor instead of mapping could not be created by @latonz in #1462
• support inlining of method with generic type arguments by @trejjam in #1498
• refactor member matching and member mapping building process by @latonz in #1334

Full Changelog: v3.6.0...v4.0.0
Migration guide: https://mapperly.riok.app/docs/breaking-changes/4-0/