Issues

• 🐛 Some AutoFixture 5.0.0-rc1 libraries dont support target framework .NETStandard,Version=v2.0

  bug
  AutoFixture/AutoFixture#1567 · Filter by author GeraldLx opened on Sep 1, 2026

• ✨ Full NUnit parameterized tests support and support CancelAfterAttribute

  AutoFixture/AutoFixture#1560 · Filter by author tonyhallett opened on Jun 29, 2026

• Simplify OmitSpecimen

  AutoFixture/AutoFixture#1554 · Filter by author zvirja opened on Apr 19, 2026 · v5.0
  2

  

• Release V5 for all the obsolete glue libraries

  AutoFixture/AutoFixture#1549 · Filter by author zvirja opened on Apr 16, 2026 · v5.0
  2

• Move AutoFixture.TUnit into project

  AutoFixture/AutoFixture#1540 · Filter by author zvirja opened on Apr 6, 2026 · v5.0
  3

• ✨ Support FakeItEasy 9

  AutoFixture/AutoFixture#1519 · Filter by author janthomasQS opened on Mar 10, 2026
  1

• 🐛 GuardClauseAssertion does not seem to work with constraints on type parameters

  bug
  AutoFixture/AutoFixture#1516 · Filter by author rent-a-developer opened on Dec 28, 2025

• 🐛 'static abstract' interface members causing exception when using AutoMoqCustomization

  bug
  AutoFixture/AutoFixture#1515 · Filter by author R0boC0p opened on Nov 6, 2025
  3

• ✨Implement support for object creation by using the builder pattern instead of constructors.

  AutoFixture/AutoFixture#1498 · Filter by author bestsoftever opened on Mar 10, 2025

• Make NoSpeciment singleton

  acceptedenhancement
  AutoFixture/AutoFixture#1489 · Filter by author Griboedoff opened on Feb 13, 2025
  1

• 🚨 Vulnerable dependancy System.ComponentModel.Annotations

  AutoFixture/AutoFixture#1484 · Filter by author apex-lachezar-gizdov opened on Nov 20, 2024
  3

• Minimum Fare dependency introduces vulnerable package

  AutoFixture/AutoFixture#1481 · Filter by author slaneyrw opened on Oct 22, 2024
  2

• 🐛 StackOverflow exception when creating member configured NSubstitute proxies of abstract records

  bug
  AutoFixture/AutoFixture#1480 · Filter by author Crown0815 opened on Oct 15, 2024

• autofixture is missing NuGet package README file

  acceptedenhancementgood first issue
  AutoFixture/AutoFixture#1439 · Filter by author lyndaidaii opened on Feb 9, 2024 · v5.0
  7

  

• 🐛 Auto properties on large record types causes severe performance degradation

  bug
  AutoFixture/AutoFixture#1432 · Filter by author putnap opened on Dec 21, 2023
  4

• ✨ DataAnnotations support for specimen factories

  acceptedfeature request
  AutoFixture/AutoFixture#1426 · Filter by author aivascu opened on Dec 4, 2023 · future

• 🐛 Enum data type is not applied when a member has both [StringLength] and [EnumDataType] annotations

  bugdata annotationstriage
  AutoFixture/AutoFixture#1409 · Filter by author cervengoc opened on Oct 11, 2023
  4

• ✨ Repeatable random numbers

  feature request
  AutoFixture/AutoFixture#1406 · Filter by author cbersch opened on Sep 26, 2023 · future
  2

• 🐛 AutoNSubstitute does not use ForPartsOf for abstract classes

  bug
  AutoFixture/AutoFixture#1355 · Filter by author rcdailey opened on Jun 27, 2022 · v5.0
  1

• 🐛 Fixture cannot create Byte Array with RegularExpressionAttribute

  bugdata annotationstriage
  AutoFixture/AutoFixture#1348 · Filter by author RonSijm opened on May 23, 2022
  2

• 🐛 ReadonlyCollectionPropertiesBehavior causes InvalidCastException when used with OmitOnRecursionBehavior

  bugtriage
  AutoFixture/AutoFixture#1341 · Filter by author ArturDorochowicz opened on Apr 8, 2022
  1

• 🐛 ReadonlyCollectionPropertiesBehavior does not account for collection property being null

  bugtriage
  AutoFixture/AutoFixture#1340 · Filter by author ArturDorochowicz opened on Apr 8, 2022 · v5.0

• 🐛 ReadonlyCollectionPropertiesBehavior does not select collection Add method correctly

  bugtriage
  AutoFixture/AutoFixture#1339 · Filter by author ArturDorochowicz opened on Apr 8, 2022
  1

• ✨ Skip nullable parameters when doing GuardClauseAssertion

  feature requestIdioms
  AutoFixture/AutoFixture#1328 · Filter by author zvirja opened on Feb 3, 2022 · v6.0
  4

• ConcurrentDictionary

  feature request
  AutoFixture/AutoFixture#1176 · Filter by author JoshKeegan opened on Apr 24, 2020 · v5.0
  6