10.2.2

Release notes

Please read the upgrade guide if you are moving from 9.x to 10.x

Changes in 10.2.2

• Add backwards compatibility overloads for the changes in 10.2.1 (#1752)

Changes in 10.2.1

• Optional internal type registration should work with AddFluentValidation as well as directly on the service collection (#1748)

Changes in 10.2.0

• Fix display name generation should be consistent between RuleForEach and RuleFor.ForEach (#1231)
• Allow AddFluentValidation to be called directly on IServiceCollection (#1726)
• Throw exception when calling ValidateAndThrow even if PreValidate prevents further validation (#1736)
• ValidationException now includes rule severity (#1733)
• Optionally support internal types when scanning assemblies for validators (#1742)
• Deprecate RunDefaultMvcValidationAfterFluentValidationExecutes in MVC configuration. Use DisableDataAnnotationsValidation instead.

Changes in 10.1.0

• Allow default severity level to be set globally (#1715)
• Extend use of variance into the internal API to resolve invalid cast exceptions in some scenarios (#1711)
• Fix clientside metadata being incorrectly generated for cross-property LessThanOrEqual/GreaterThanOrEqual (#1721)

Changes in 10.0.4

• Resolved an issue where async conditions were run synchronously when applied to synchronous property validators

Changes in 10.0.3

• Fix ArgumentOutOfRangeException when condition returns false for RuleForEach containing multiple components (#1698)

Changes in 10.0.2

• ErrorCode is now exposed on IRuleComponent

Changes in 10.0.1

• Add GetPropertyValue to IValidationRule to support #1688
• Context object is now strongly typed inside IValidationRule<T>.ApplyCondition/ApplyAsyncCondition for users of the internal API

Changes in 10.0.0

• Various performance improvements throughout the library
• Collection rules now only iterate the collection once
• Property validator classes are now generic
• Deprecated non-generic PropertyValidator.
• Changed type of ValidationResult.Errors from IList<ValidationFailure> to List<ValidationFailure>
• The internal API now uses generics.
• Various property validator options have been seperated into RuleComponents.
• Various parts of the internal API are now internal (PropertyRule, CollectionPropertyRule etc).
• ValidatorDescriptor now returns rule components in various places, where PropertyValidators were previously returned
• Default service lifetime in ASP.NET projects is now Scoped rather than Transient.
• Combined IActionContextValidatorInterceptor and IValidatorInterceptor.
• Changes to the ASP.NET Client Validator Adaptor interfaces. These now receive the rule component.
• Removed deprecated IStringSource and its inheritors.
• Removed deprecated FormattedMessageArguments from ValidationFailure.
• Removed other deprecated code.

Downloads

Binaries can be downloaded from nuget:

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

10.2.1

Release notes

Please read the upgrade guide if you are moving from 9.x to 10.x

Changes in 10.2.1

• Optional internal type registration should work with AddFluentValidation as well as directly on the service collection (#1748)

Changes in 10.2.0

• Fix display name generation should be consistent between RuleForEach and RuleFor.ForEach (#1231)
• Allow AddFluentValidation to be called directly on IServiceCollection (#1726)
• Throw exception when calling ValidateAndThrow even if PreValidate prevents further validation (#1736)
• ValidationException now includes rule severity (#1733)
• Optionally support internal types when scanning assemblies for validators (#1742)
• Deprecate RunDefaultMvcValidationAfterFluentValidationExecutes in MVC configuration. Use DisableDataAnnotationsValidation instead.

Changes in 10.1.0

• Allow default severity level to be set globally (#1715)
• Extend use of variance into the internal API to resolve invalid cast exceptions in some scenarios (#1711)
• Fix clientside metadata being incorrectly generated for cross-property LessThanOrEqual/GreaterThanOrEqual (#1721)

Changes in 10.0.4

• Resolved an issue where async conditions were run synchronously when applied to synchronous property validators

Changes in 10.0.3

• Fix ArgumentOutOfRangeException when condition returns false for RuleForEach containing multiple components (#1698)

Changes in 10.0.2

• ErrorCode is now exposed on IRuleComponent

Changes in 10.0.1

• Add GetPropertyValue to IValidationRule to support #1688
• Context object is now strongly typed inside IValidationRule<T>.ApplyCondition/ApplyAsyncCondition for users of the internal API

Changes in 10.0.0

• Various performance improvements throughout the library
• Collection rules now only iterate the collection once
• Property validator classes are now generic
• Deprecated non-generic PropertyValidator.
• Changed type of ValidationResult.Errors from IList<ValidationFailure> to List<ValidationFailure>
• The internal API now uses generics.
• Various property validator options have been seperated into RuleComponents.
• Various parts of the internal API are now internal (PropertyRule, CollectionPropertyRule etc).
• ValidatorDescriptor now returns rule components in various places, where PropertyValidators were previously returned
• Default service lifetime in ASP.NET projects is now Scoped rather than Transient.
• Combined IActionContextValidatorInterceptor and IValidatorInterceptor.
• Changes to the ASP.NET Client Validator Adaptor interfaces. These now receive the rule component.
• Removed deprecated IStringSource and its inheritors.
• Removed deprecated FormattedMessageArguments from ValidationFailure.
• Removed other deprecated code.

Downloads

Binaries can be downloaded from nuget:

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

10.2.0

Release notes

Please read the upgrade guide if you are moving from 9.x to 10.x

Changes in 10.2.0

• Fix display name generation should be consistent between RuleForEach and RuleFor.ForEach (#1231)
• Allow AddFluentValidation to be called directly on IServiceCollection (#1726)
• Throw exception when calling ValidateAndThrow even if PreValidate prevents further validation (#1736)
• ValidationException now includes rule severity (#1733)
• Optionally support internal types when scanning assemblies for validators (#1742)
• Deprecate RunDefaultMvcValidationAfterFluentValidationExecutes in MVC configuration. Use DisableDataAnnotationsValidation instead.

Changes in 10.1.0

• Allow default severity level to be set globally (#1715)
• Extend use of variance into the internal API to resolve invalid cast exceptions in some scenarios (#1711)
• Fix clientside metadata being incorrectly generated for cross-property LessThanOrEqual/GreaterThanOrEqual (#1721)

Changes in 10.0.4

• Resolved an issue where async conditions were run synchronously when applied to synchronous property validators

Changes in 10.0.3

• Fix ArgumentOutOfRangeException when condition returns false for RuleForEach containing multiple components (#1698)

Changes in 10.0.2

• ErrorCode is now exposed on IRuleComponent

Changes in 10.0.1

• Add GetPropertyValue to IValidationRule to support #1688
• Context object is now strongly typed inside IValidationRule<T>.ApplyCondition/ApplyAsyncCondition for users of the internal API

Changes in 10.0.0

• Various performance improvements throughout the library
• Collection rules now only iterate the collection once
• Property validator classes are now generic
• Deprecated non-generic PropertyValidator.
• Changed type of ValidationResult.Errors from IList<ValidationFailure> to List<ValidationFailure>
• The internal API now uses generics.
• Various property validator options have been seperated into RuleComponents.
• Various parts of the internal API are now internal (PropertyRule, CollectionPropertyRule etc).
• ValidatorDescriptor now returns rule components in various places, where PropertyValidators were previously returned
• Default service lifetime in ASP.NET projects is now Scoped rather than Transient.
• Combined IActionContextValidatorInterceptor and IValidatorInterceptor.
• Changes to the ASP.NET Client Validator Adaptor interfaces. These now receive the rule component.
• Removed deprecated IStringSource and its inheritors.
• Removed deprecated FormattedMessageArguments from ValidationFailure.
• Removed other deprecated code.

Downloads

Binaries can be downloaded from nuget:

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

10.1.0

Release notes

Please read the upgrade guide if you are moving from 9.x to 10.x

Changes in 10.1.0

• Allow default severity level to be set globally (#1715)
• Extend use of variance into the internal API to resolve invalid cast exceptions in some scenarios (#1711)
• Fix clientside metadata being incorrectly generated for cross-property LessThanOrEqual/GreaterThanOrEqual (#1721)

Changes in 10.0.4

• Resolved an issue where async conditions were run synchronously when applied to synchronous property validators

Changes in 10.0.3

• Fix ArgumentOutOfRangeException when condition returns false for RuleForEach containing multiple components (#1698)

Changes in 10.0.2

• ErrorCode is now exposed on IRuleComponent

Changes in 10.0.1

• Add GetPropertyValue to IValidationRule to support #1688
• Context object is now strongly typed inside IValidationRule<T>.ApplyCondition/ApplyAsyncCondition for users of the internal API

Changes in 10.0.0

• Various performance improvements throughout the library
• Collection rules now only iterate the collection once
• Property validator classes are now generic
• Deprecated non-generic PropertyValidator.
• Changed type of ValidationResult.Errors from IList<ValidationFailure> to List<ValidationFailure>
• The internal API now uses generics.
• Various property validator options have been seperated into RuleComponents.
• Various parts of the internal API are now internal (PropertyRule, CollectionPropertyRule etc).
• ValidatorDescriptor now returns rule components in various places, where PropertyValidators were previously returned
• Default service lifetime in ASP.NET projects is now Scoped rather than Transient.
• Combined IActionContextValidatorInterceptor and IValidatorInterceptor.
• Changes to the ASP.NET Client Validator Adaptor interfaces. These now receive the rule component.
• Removed deprecated IStringSource and its inheritors.
• Removed deprecated FormattedMessageArguments from ValidationFailure.
• Removed other deprecated code.

Downloads

Binaries can be downloaded from nuget:

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

10.0.4

Release notes

Please read the upgrade guide if you are moving from 9.x to 10.x

Changes in 10.0.4

• Resolved an issue where async conditions were run synchronously when applied to synchronous property validators

Changes in 10.0.3

• Fix ArgumentOutOfRangeException when condition returns false for RuleForEach containing multiple components (#1698)

Changes in 10.0.2

• ErrorCode is now exposed on IRuleComponent

Changes in 10.0.1

• Add GetPropertyValue to IValidationRule to support #1688
• Context object is now strongly typed inside IValidationRule<T>.ApplyCondition/ApplyAsyncCondition for users of the internal API

Changes in 10.0.0

• Various performance improvements throughout the library
• Collection rules now only iterate the collection once
• Property validator classes are now generic
• Deprecated non-generic PropertyValidator.
• Changed type of ValidationResult.Errors from IList<ValidationFailure> to List<ValidationFailure>
• The internal API now uses generics.
• Various property validator options have been seperated into RuleComponents.
• Various parts of the internal API are now internal (PropertyRule, CollectionPropertyRule etc).
• ValidatorDescriptor now returns rule components in various places, where PropertyValidators were previously returned
• Default service lifetime in ASP.NET projects is now Scoped rather than Transient.
• Combined IActionContextValidatorInterceptor and IValidatorInterceptor.
• Changes to the ASP.NET Client Validator Adaptor interfaces. These now receive the rule component.
• Removed deprecated IStringSource and its inheritors.
• Removed deprecated FormattedMessageArguments from ValidationFailure.
• Removed other deprecated code.

Downloads

Binaries can be downloaded from nuget:

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

10.0.3

Release notes

Please read the upgrade guide if you are moving from 9.x to 10.x

Changes in 10.0.3

• Fix ArgumentOutOfRangeException when condition returns false for RuleForEach containing multiple components (#1698)

Changes in 10.0.2

• ErrorCode is now exposed on IRuleComponent

Changes in 10.0.1

• Add GetPropertyValue to IValidationRule to support #1688
• Context object is now strongly typed inside IValidationRule<T>.ApplyCondition/ApplyAsyncCondition for users of the internal API

Changes in 10.0.0

• Various performance improvements throughout the library
• Collection rules now only iterate the collection once
• Property validator classes are now generic
• Deprecated non-generic PropertyValidator.
• Changed type of ValidationResult.Errors from IList<ValidationFailure> to List<ValidationFailure>
• The internal API now uses generics.
• Various property validator options have been seperated into RuleComponents.
• Various parts of the internal API are now internal (PropertyRule, CollectionPropertyRule etc).
• ValidatorDescriptor now returns rule components in various places, where PropertyValidators were previously returned
• Default service lifetime in ASP.NET projects is now Scoped rather than Transient.
• Combined IActionContextValidatorInterceptor and IValidatorInterceptor.
• Changes to the ASP.NET Client Validator Adaptor interfaces. These now receive the rule component.
• Removed deprecated IStringSource and its inheritors.
• Removed deprecated FormattedMessageArguments from ValidationFailure.
• Removed other deprecated code.

Downloads

Binaries can be downloaded from nuget:

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

10.0.2

Release notes

Please read the upgrade guide if you are moving from 9.x to 10.x

Changes in 10.0.2

• ErrorCode is now exposed on IRuleComponent

Changes in 10.0.1

• Add GetPropertyValue to IValidationRule to support #1688
• Context object is now strongly typed inside IValidationRule<T>.ApplyCondition/ApplyAsyncCondition for users of the internal API

Changes in 10.0.0

• Various performance improvements throughout the library
• Collection rules now only iterate the collection once
• Property validator classes are now generic
• Deprecated non-generic PropertyValidator.
• Changed type of ValidationResult.Errors from IList<ValidationFailure> to List<ValidationFailure>
• The internal API now uses generics.
• Various property validator options have been seperated into RuleComponents.
• Various parts of the internal API are now internal (PropertyRule, CollectionPropertyRule etc).
• ValidatorDescriptor now returns rule components in various places, where PropertyValidators were previously returned
• Default service lifetime in ASP.NET projects is now Scoped rather than Transient.
• Combined IActionContextValidatorInterceptor and IValidatorInterceptor.
• Changes to the ASP.NET Client Validator Adaptor interfaces. These now receive the rule component.
• Removed deprecated IStringSource and its inheritors.
• Removed deprecated FormattedMessageArguments from ValidationFailure.
• Removed other deprecated code.

Downloads

Binaries can be downloaded from nuget:

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

10.0.1

Release notes

Please read the upgrade guide if you are moving from 9.x to 10.x

Changes in 10.0.1

• Add GetPropertyValue to IValidationRule to support #1688
• Context object is now strongly typed inside IValidationRule<T>.ApplyCondition/ApplyAsyncCondition for users of the internal API

Changes in 10.0.0

• Various performance improvements throughout the library
• Collection rules now only iterate the collection once
• Property validator classes are now generic
• Deprecated non-generic PropertyValidator.
• Changed type of ValidationResult.Errors from IList<ValidationFailure> to List<ValidationFailure>
• The internal API now uses generics.
• Various property validator options have been seperated into RuleComponents.
• Various parts of the internal API are now internal (PropertyRule, CollectionPropertyRule etc).
• ValidatorDescriptor now returns rule components in various places, where PropertyValidators were previously returned
• Default service lifetime in ASP.NET projects is now Scoped rather than Transient.
• Combined IActionContextValidatorInterceptor and IValidatorInterceptor.
• Changes to the ASP.NET Client Validator Adaptor interfaces. These now receive the rule component.
• Removed deprecated IStringSource and its inheritors.
• Removed deprecated FormattedMessageArguments from ValidationFailure.
• Removed other deprecated code.

Downloads

Binaries can be downloaded from nuget:

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

10.0.0

Release notes

Please read the upgrade guide if you are moving from 9.x to 10.x

Changes in 10.0.0

• Various performance improvements throughout the library
• Collection rules now only iterate the collection once
• Property validator classes are now generic
• Deprecated non-generic PropertyValidator.
• Changed type of ValidationResult.Errors from IList<ValidationFailure> to List<ValidationFailure>
• The internal API now uses generics.
• Various property validator options have been seperated into RuleComponents.
• Various parts of the internal API are now internal (PropertyRule, CollectionPropertyRule etc).
• ValidatorDescriptor now returns rule components in various places, where PropertyValidators were previously returned
• Default service lifetime in ASP.NET projects is now Scoped rather than Transient.
• Combined IActionContextValidatorInterceptor and IValidatorInterceptor.
• Changes to the ASP.NET Client Validator Adaptor interfaces. These now receive the rule component.
• Removed deprecated IStringSource and its inheritors.
• Removed deprecated FormattedMessageArguments from ValidationFailure.
• Removed other deprecated code.

Downloads

Binaries can be downloaded from nuget:

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

9.5.4

Release notes

Please read the upgrade guide if you are moving from 8.x to 9.x

Changes in 9.5.4

• Fix Serbian translation of error messages (#1683)
• Add Vietnamese translations of error messages (#1677)

Changes in 9.5.3

• Fix Swedish translation for CreditCardValidator (#1664)

Changes in 9.5.2

• Fix Dutch translation of some errors (#1653)
• Fix string equality comparison in WithCustomState extension (#1658)

Changes in 9.5.1

• Fix incorrect wording in deprecation message for Transform (#1613)
• Fix ScalePrecision validator being available in intellisense for non-decimal properties.
• Expose additional overload of Transform that receives the root object in the transformer.

Changes in 9.5.0

• Introduce new syntax for applying transformations and deprecate the old syntax (#1613)

Changes in 9.4.0

• ChildRules now work as expected when inside a ruleset (#1597)
• Added ImplicitlyValidateRootCollectionElements option to MVC integration (#1585)

Changes in 9.3.0

• Support for .NET 5 and ASP.NET Core 5
• Improvements to LanguageManager's lazy loading of resources.
• Deprecate IStringSource and its implementors. Use delegates instead.
• CustomizeValidatorAttribute now works in Razor pages (netcore 3.1 and net 5.0 only) (#1541)
• RuleSetForClientSideMessagesAttribute now works in Razor pages (netcore 3.1 and net 5.0 only) (#1544)
• Fixes to Spanish translations.

Changes in 9.2.2

• Fix one of the inheritance validator overloads not working correctly (#1528)

Changes 9.2.1

• Add non-generic extensibility point to inheritance validator
• Updates to Persian translations (#1513)
• Added Bengali translations (#1517)

Changes in 9.2.0

• Add inheritance validator (#1237) - see https://docs.fluentvalidation.net/en/latest/inheritance.html
• Various performance improvements

Changes in 9.1.3

• Fix an issue with IncludeRulesNotInRuleSet not working correctly (#1493)

Changes in 9.1.2

• Make the ValidationContext.ThrowOnFailures getter public.

Changes in 9.1.1

• Update incorrect wording in CascadeMode.StopOnFirstFailure deprecation warning.

Changes in 9.1.0

• Add new Validate extension methods that allow options to be configured using a strategy (#1467)
• Introduce CascadeMode.Stop and deprecate CascadeMode.StopOnFirstFailure to resolve confusion/abiguity about setting the cascade mode at validator-level (#1437)
• RaiseValidationException can be overridden to customize the exception throwing process (#1162)
• Make ruleset separator character splitting consistent (#1424)
• Transform now works with RuleForEach (#1450)
• Introduce constants for rulesets (#1435)
• Resolve issue when attempting to use asynchronous conditions in a synchornous validaiton run (#1438)
• Added asynchronous versions of the TestHelper methods (#1423)

Example of using the new validation strategy:

// Validate specific rulesets
validator.Validate(instance, opt => {
  opt.IncludeRuleSets("MyRuleSet", "SomeOtherRuleSet");
  
  // Can also force rules not in a ruleset to be run
  opt.IncludeRulesNotInRuleSet();
});

// Validate specific properties
validator.Validate(instance, opt => {
  opt.IncludeProperties("Forename", "Surname");
  // or
  opt.IncludeProperties(x => x.Surname, x.Forename);
});

// Throw exceptions on failure
validator.Validate(instance, opt => {
   opt.ThrowOnFailures();
});

// Combine various options
validator.Validate(instance, opt => {
  opt.IncludeRuleSets("MyRuleSet", "SomeOtherRuleSet").IncludeRulesNotInRuleSet();
  opt.ThrowOnFailures();
});

Downloads

Binaries can be downloaded from nuget:

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