Release notes

Please read the upgrade guide if you are moving from 10.x to 11.x

Note that the after 11.1.0 release, the FluentValidation.AspNetCore package has been moved to a separate repository and is now versioned and released separately. These release notes now only apply to the core FluentValidation package. For FluentValidation.AspNetCore release notes, please visit the FluentValidation.AspNetCore repository.

Changes in 11.9.2

• ScalePrecisionValidator error message clarification (#2211)

Changes in 11.9.1

• Fix issue with CascadeMode on child validators (#2207)

Changes in 11.9.0

• Fix memory leak in NotEmptyValidator/EmptyValidator (#2174)
• Add more descriptive error messages if a rule throws a NullReferenceException (#2152)
• Add support for caching root parameter expressions (eg RuleFor(x => x)) (#2168)
• Prevent AddValidatorsFromAssemblyContaining from registering validators twice (#2182)
• Add builds for .net 8

Changes in 11.8.1

• Fix unintentional behavioural changes in introduced in the previous release as part of #2158

Changes in 11.8.0

• Added AbstractValidator.OnRuleAdded to allow customization of rule instances after creation (#2114)
• Fix Serbian translation of LengthValidator (#2147)
• Fix chinese culture codes (#2151)
• Add Khmer translations (#2155)
• Various performance improvements (#2158)
• Fix ChildRules with class hierarchies (#2165)

Changes in 11.7.1

• Resolved issue with combining multiple ValidationResult instances where RuleSetsExecuted wasn't properly set on the combined result (#2125)

Changes in 11.7.0

• Add additional constructor for combining multiple ValidationResult instances (#2125)
• Add PropertyPath placeholder (#2134)
• Fix Brazilian Portuguese translation (#2131)

Changes in 11.6.0

• Add OnFailurecCreated callback in ValidatorOptions.Global (#2120)
• Fix typo in Russian localization (#2102)
• Add Tajik language (#2108)
• Fixed some typos in Validator Extension docblocks (#2118)

Changes in 11.5.2

• Resolve issue with ruleset propagation for multiple levels of child rules (#2097)

Changes in 11.5.1

• Deprecated the ability to disable the root model null check via overriding AbstractValidator.EnsureInstanceNotNull (See #2069 for migration steps)
• Deprecated the Transform and TransformAsync methods (See #2072 for migration steps)

Changes in 11.5.0

• MemberNameValidatorSelector now supports wildcard indexes in property paths (#2056)
• Added overload of TestValidateAsync that accepts a context (#2052)
• Minor optimization to regex validator (#2035)
• Added Kazakh translations (#2036)
• Added Catalan translations and updated Spanish translations (#2050)
• Updates to Uzbek Latin and Cyrillic translations (#2040/#2041/#2045)
• Updates to Italian translations (#2039)
• Updates to French translations (#2065)

Changes in 11.4.0

• Deprecate ScalePrecision validator and introduce PrecisionScale validator as its replacement (#2030)

Changes in 11.3.0

• Add a net7 build
• Annotate string parameters with StringSyntaxAttribute.Regex in net7 builds (#1957)
• Fixes to SourceLink integration (#2019)
• Add Uzbek Latin and Cyrillic languages (#2013)
• Updates to Danish language (#2012)

Changes in 11.2.2

• MemberNameValidatorSelector should make use of PropertyNameResolver when parsing expressions (#2003)

Changes in 11.2.1

• Fix test helper Only() not taking into account parent-level unmatched failures (#1986)

Changes in 11.2.0

• Resolve issue with unexpected results when with nested Include calls with the MemberNameValidatorSelector (#1989)
• Add a new Selector Factory for the Composite Selector (#1988)

Changes in 11.1.1

• Fix issue with incorrect rulesets being executed in a child validator when combined with ChildRules (#1981)
• Bulgarian translations of default messages (#1973)

Changes in 11.1.0

• Added a ToDictionary method to ValidationResult (particularly useful when working with Minimal APIs)-
• MVC auto validation: Deprecated Implicit validation of child properties (#1960)
• MVC auto validation: Deprecated Implicit validation of root collection elements (#1960)
• Deprecated InjectValidator (#1960)
• Deprecated IValidatorFactory and ServiceProviderValidatorFactory (#1961)
• Introduce services.AddFluentValidationAutoValidation() and services.AddFluentValidationClientsideAdapters() as replacements for services.AddFluentValidation() (#1965)
• Remove duplication between sync and async validation in the internal model.

Changes in 11.0.3

• Fix AsyncValidatorInvokedSynchronouslyException being incorrectly thrown when the top-level When method with RuleForEach, even when invoked asynchronously (#1955)

Changes in 11.0.2

• Child validator contexts now contain a reference to their parent context (#1945)
• Support deserialization of ValidationResult using System.Text.Json (#1928)

Changes in 11.0.1

• Fix regression in the Test Helper affecting the With* and Without* assertion methods (#1937)

Changes in 11.0

• Throw exceptions when async validator is invoked synchronously (#1705)
• Removal deprecated OnFailure/OnAnyFailure callbacks.
• Remove deprecated RunDefaultMvcValidationAfterFluentValidationExecutes option from ASP.NET integration.
• Remove deprecated Options property from RuleComponent.
• Remove deprecated TestHelper methods.
• Remove non-generic PropertyValidator backwards compatibility layer.
• Add method Only() to the test helper asserting that no other validation errors were raised.
• Ensure property covariance is properly handled throughout the internal model (#1713)

Downloads

Binaries can be downloaded from nuget:

• FluentValidation - Main package
• FluentValidation.AspNetCore - ASP.NET Core integration