What's Changed

New features

• Extended BeEquivalentTo with support for checking the type of the properties by @dennisdoomen in #3066

Fixes

• Ensured WithTracing is safe when used with BeEquivalentTo globally by @dennisdoomen in #3067

Others

• Revisit the .editorconfig rules by @dennisdoomen in #3063
• Bump cspell from 9.1.1 to 9.1.2 by @dependabot[bot] in #3068
• Use .NET 9 SDK by @jnyrup in #3069
• Bump cspell from 9.1.2 to 9.1.3 by @dependabot[bot] in #3071

Full Changelog: 8.4.0...8.5.0

What's Changed

Improvements

• Allow excluding properties by name anywhere in the graph by @dennisdoomen in #3062
• Added Should().Throw(), ThrowAsync() and ThrowWithinAsync() flavors that don’t require a specific exception type by @Xceed-DelvaJB in #3059

Others

• Bump cspell from 9.0.1 to 9.0.2 by @dependabot in #3050
• Bump JetBrains/qodana-action from 2024.2 to 2025.1 by @dependabot in #3044
• Fix qodana warnings by @jnyrup in #3053
• Add contributor grant by @dennisdoomen in #3055
• Bump cspell from 9.0.2 to 9.1.1 by @dependabot in #3058

New Contributors

• @Xceed-DelvaJB made their first contribution in #3059

Full Changelog: 8.3.0...8.4.0

What's Changed

Improvements

• Improve rendering of exception messages when using WithMessage by @dennisdoomen in #3039
• Clarify the date/time type when comparing dates, times and combinations of those by @dennisdoomen in #3049

Others

• Bump cspell from 8.17.5 to 8.18.1 by @dependabot in #3041
• Bump cspell from 8.18.1 to 8.19.2 by @dependabot in #3042
• Bump cspell from 8.19.2 to 8.19.3 by @dependabot in #3043
• Bump cspell from 8.19.3 to 9.0.0 by @dependabot in #3045
• Bump cspell from 9.0.0 to 9.0.1 by @dependabot in #3046
• Fix links to test suites in bug report template by @robvanuden in #3047

Full Changelog: 8.2.0...8.3.0

What's Changed

Improvements

• Optimize various string operations by @jnyrup in #3037
• Reworked formatting and support multi-dimensional arrays. by @dennisdoomen in #3009

Fixes

• Restore StringSyntax annotations by @jnyrup in #3033
• Regex fixups by @jnyrup in #3034
• Handle missing caller identifier by @jnyrup in #3036

Others

• Bump cspell from 8.17.3 to 8.17.5 by @dependabot in #3035

Full Changelog: 8.1.1...8.2.0

What's Changed

Fixes

• Fix a formatting exception when {} is used as a dictionary key. by @dennisdoomen in #3029
• Removed the PS script that opens the FA website because it misbehaves. by @dennisdoomen in #3030

Full Changelog: 8.1.0...8.1.1

What's Changed

Improvements

• Add [NotNull] attribute on the Should() method for object assertions by @0xced in #2987
• Improves the subject identification for chained assertions and those that use Which by @dennisdoomen in #3000

Fixes

• Fixed a regression in which CompleteWithinAsync treated a canceled task as an exception by @dennisdoomen in #2853

Documentation

• Reconnected the new license to the history of the old license by @dennisdoomen in #2985
• Removed an incorrect date/time example from the docs by @dennisdoomen in #2989

Others

• Make sure developers don't accidentally update to v8 without understanding the new license by @dennisdoomen in #2988
• Bump Microsoft.Testing.Extensions.TrxReport from 1.5.1 to 1.5.3 by @dependabot in #2993
• Bump TUnit from 0.6.154 to 0.7.24 by @dependabot in #2992
• Bump the mstest group with 2 updates by @dependabot in #2991
• Backport updates to pipelines by @jnyrup in #3001
• Bump cspell from 8.17.2 to 8.17.3 by @dependabot in #3005
• Bump Roslynator.Analyzers from 4.12.10 to 4.12.11 by @dependabot in #3004
• Bump TUnit from 0.7.24 to 0.10.6 by @dependabot in #3002
• Upmerge from v7 by @dennisdoomen in #3006
• Renamed CallerStatementBuilder to StatementParser by @dennisdoomen in #3007
• Bump Meziantou.Analyzer and Microsoft.NETFramework.ReferenceAssemblies by @dependabot in #3014
• Bump Microsoft.NET.Test.Sdk, Microsoft.NETFramework.ReferenceAssemblies and Newtonsoft.Json by @dependabot in #3013
• Bump Microsoft.NETFramework.ReferenceAssemblies and Roslynator.Analyzers by @dependabot in #3012
• Bump the xunit group with 3 updates by @dependabot in #3010
• Adjust dependencies by @jnyrup in #3015
• Bump NUnit3TestAdapter from 4.6.0 to 5.0.0 in the nunit group by @dependabot in #3011
• Fixed typo in introduction page by @tealamore in #3019
• Bump Verify.Xunit from 28.10.1 to 28.11.0 in the xunit group by @dependabot in #3022
• Bump TUnit from 0.10.6 to 0.13.3 by @dependabot in #3026
• Bump Microsoft.Testing.Extensions.CodeCoverage from 17.13.1 to 17.14.1 by @dependabot in #3024
• Bump the mstest group with 2 updates by @dependabot in #3023
• Bump Microsoft.NETFramework.ReferenceAssemblies, System.Collections.Immutable and System.Reflection.Metadata by @dependabot in #3025
• Upmerge from v7 by @jnyrup in #3028
• Fixed a regression in which CompleteWithinAsync treated a canceled ta… by @dennisdoomen in #3027

New Contributors

• @tealamore made their first contribution in #3019

Full Changelog: 8.0.1...8.1.0

What's Changed

Improvements

• Improve failure message for string assertions when checking for equality by @vbreuss in #2972
• Add [NotNull] attribute on the Should() method for object assertions by @0xced in #2987

Fixes

• Fixed a regression in which CompleteWithinAsync treated a canceled task as an exception by @dennisdoomen in #2853

Others

• Backport updates to pipelines by @jnyrup in #3001

Full Changelog: 7.1.0...7.2.0

What's Changed

Improvements

• Provide a toggle to suppress the soft warning about commercial use by @dennisdoomen in #2984

Others

• Update docs to make license change more clear by @jnyrup in #2953
• Bump all dependencies by @dennisdoomen in #2962
• Bump System.Collections.Immutable and System.Reflection.Metadata by @dependabot in #2969
• Bump SharpCompress from 0.38.0 to 0.39.0 by @dependabot in #2968
• Bump the nuke group with 2 updates by @dependabot in #2967
• Bump Verify.Xunit from 28.8.1 to 28.9.0 in the xunit group by @dependabot in #2965
• Bump the mstest group with 2 updates by @dependabot in #2966
• Bump cspell from 8.17.1 to 8.17.2 by @dependabot in #2964
• Discard backported changes from 7 by @dennisdoomen in #2974
• Various textual and styling fixes as well as some clarification of v7 and v8. by @dennisdoomen in #2978
• Bump Xunit.StaFact from 1.1.11 to 1.2.69 in the xunit group by @dependabot in #2979
• Bump TUnit from 0.6.33 to 0.6.154 by @dependabot in #2980
• Bump Reflectify from 1.4.0 to 1.5.0 by @dependabot in #2981
• Bump System.Formats.Asn1 from 9.0.0 to 9.0.1 by @dependabot in #2983
• Bump coverlet.collector from 6.0.3 to 6.0.4 by @dependabot in #2982

Full Changelog: 8.0.0...8.0.1

What's Changed

Improvements

• Backport TUnit to v7 by @dennisdoomen in #2971
• Backport xUnit 3 support by @dennisdoomen in #2970

Others

• Bump all dependencies by @dennisdoomen in #2962

Full Changelog: 7.0.0...7.1.0

What's Changed

License change

• Update ownership and license to the Xceed Community License @dennisdoomen in #2943

Breaking Changes

• Moved all support for DataSet, DataTable, DataRow into FluentAssertions.DataSets by @dennisdoomen in #2267
• Remove obsolete OrEqualTo methods by @IT-VBFK in #2269
• Remove SpacesPerIndentionLevel by @jnyrup in #2281
• Drop support for .NET Core by @dennisdoomen in #2302
• Change AllSatisfy to succeed on empty collections by @jnyrup in #2321
• Add ForConstraint to IAssertionScope by @IT-VBFK in #2324
• Change OnlyContain to succeed on empty collections by @IT-VBFK in #2350
• Drop support for NSpec3 by @ITaluone in #2356
• Removed binary formatter by @lg2de in #2278
• Converted AsyncFunctionAssertions into real base class by @lg2de in #2359
• Move non-generic NotThrow[After] to ActionAssertions by @jnyrup in #2371
• Rename EquivalencyAssertionOptions to EquivalencyOptions by @vbreuss in #2414
• Allow fluently calling WithoutMatchingRules and WithoutSelectionRules while using BeEquivalentTo by @vbreuss in #2457
• Consolidate namespace and file location by @vbreuss in #2449
• Allow event monitoring to ignore failing event accessors by @ITaluone in #2629
• Improve BeUpperCased/BeLowerCased semantics by @drewjcooper in #2660
• Various naming improvements by @dennisdoomen in #2745
• Redesigned AssertionScope and how it travels over chained calls by @dennisdoomen in #2539
• Simplify inheritance of SubsequentOrderingAssertions by @vbreuss in #2439
• Renamed RespectingRuntimeTypes and RespectingDeclaredTypes to better clarify their purpose by @dennisdoomen in #2866
• Renamed ExcludingNestedObjects to WithoutRecursing to better describe its purpose by @dennisdoomen in #2876
• Remove support for HttpResponseMessage assertions by @ITaluone in #2909
• Redesign Configuration, Services and AssertionOptions by @dennisdoomen in #2901

New features

• Introduces an attribute to mark an entire assembly as one that contains custom assertions. by @dennisdoomen in #2389
• Introduced a new attribute to allow global initialization of the assertion options by @dennisdoomen in #2292
• Add support for NUnit4 by @vbreuss in #2483
• Add missing NotBeIn(DateTimeKind) DateTime assertion by @IT-VBFK in #2536
• Allow specifying EquivalencyOptions in string assertions by @vbreuss in #2413
• Add BeNaN and NotBeNaN assertions by @arocheleau in #2606
• Add scoped value formatters by @ITaluone in #2676
• TUnit Framework Support by @thomhurst in #2758

Improvements

• Optimize TypeMemberReflector by @jnyrup in #2320
• Improve failure message for string assertions when checking for equality by @vbreuss in #2307
• Capitalize true and false in failure messages by @BusHero in #2390
• Pass Boolean literals as becauseArguments by @jnyrup in #2393
• BeEmpty() materializes IEnumerable only once, even on failure by @louis-z in #2530
• Add [NotNull] attribute on the Should() method for object assertions by @0xced in #2380
• Allow nested AssertionScopes to chain their context by @dennisdoomen in #2607
• Avoid allocations when chaining contexts by @jnyrup in #2613
• Add option to ignore newline style when comparing strings for equivalency by @vbreuss in #2565
• Add [StringSyntax("CompositeFormat")] to all because parameters by @psychotoad in #2635
• Add support for Satisfy on ReferenceTypeAssertions by @siewers in #2597
• Filter the list of events returned by RaisePropertyChangeFor by @arocheleau in #2677
• Add a bunch of assertions on XElement and XDocument by @ITaluone in #2690
• Correctly specify nullability of Subject for NumericAssertions by @vbreuss in #2473

Fixes

• Fixed formatting error when checking nullable DateTimeOffset with BeWithin/Before by @rokklobster in #2312
• Ensure explicitly implemented members are discoverable in BeEquivalentTo by @dennisdoomen in #2152
• Pass down the reason to inner AssertionScope by @IT-VBFK in #2318
• Handle comparing an IDictionary subject with an IDictionary<,> expectation by @ITaluone in #2358
• Pass FormattingOptions to inner AssertionScope by @ITaluone in #2329
• Improve failure message for NotBeOfType and BeReadable/BeWritable by @jnyrup in #2399
• Do not continue asserting on the concrete exception type when the exception is null by @IT-VBFK in #2398
• Guard methods against assertion scope [Not]HaveExplicit(Property|Method) by @IT-VBFK in #2403
• Exclude private protected members from BeEquivalentTo by @jnyrup in #2417
• Fix issue when an empty ArraySegment is a member of a class by @ITaluone in #2511
• Correct null handling when using a custom comparer by @MartinDemberger in #2489
• Avoid treating "\\r\\n" as new line. by @vbreuss in #2569
• Make ThrowWithinAsync respect canceled tasks by @jnyrup in #2614
• Fixed BeEquivalentTo when using a custom comparer targeting nullable types by @arocheleau in #2648
• Remove non-compliant StringSyntaxAttribute by @IT-VBFK in #2669
• Do not use UsingLineBreaks for [Not]BeSameAs by @jnyrup in #2726
• Properly report the path even if custom mapping is used by @dennisdoomen in #2860
• GlobalConfiguration.TestFramework did not reconfigure the run-time test framework being used. by @dennisdoomen in #2918
• GlobalEquivalencyOptions.CloneDefaults needs to be public by @dennisdoomen in #2926

Documentation

• added closing parenthesis in docs (collections.md) by @JoelWakefield in #2295
• Grammatical changes of "which" to "whose" by @mpityo in #2355
• Add a note to XML-docs that explains the (Not)ContainEquivalentOf problem by @IT-VBFK in #2354
• Add release notes for #2393 by @IT-VBFK in #2396
• Restore DateTime tips by @jnyrup in https://github.com/fluenta...