FluentValidation 8.1.2

A validation library for .NET that uses a fluent interface to construct strongly-typed validation rules.

Showing the top 20 packages that depend on FluentValidation.

Packages Downloads
FluentValidation.AspNetCore
AspNetCore integration for FluentValidation
3
FluentValidation.AspNetCore
AspNetCore integration for FluentValidation
2
FluentValidation.DependencyInjectionExtensions
Dependenecy injection extensions for FluentValidation
2
FluentValidation.DependencyInjectionExtensions
Dependency injection extensions for FluentValidation
2
FluentValidation.AspNetCore
AspNetCore integration for FluentValidation
1

FluentValidation 8 is a major release. Please read the upgrade notes at https://fluentvalidation.net/upgrading-to-8 Changes in 8.1.1: * Added RuleSetsExecuted property on ValidationResult. * Resolved issue introduced in 8.1 where the shared condition cache does not work correctly with RuleForEach (#970). Changes in 8.1: * Add format support in message placeholders. * Added support for overriding indexers for collection rules. * Allow error codes to be used to override localization key in the Language Manager. * Additional error details are now shown in the ShouldNotHaveValidationErrorFor test extension. * Conditions defined with root-level When/WhenAsync/Unless/UnlessAsync are now only executed once (instead of once for each rule). * Support Otherwise method chained from root-level When/WhenAsync/Unless/UnlessAsync. * Minor wording changes to default English error messages. * Japanese translation of the default error messages. * Added Skip property to MVC5's CustomizeValidatorAttribute for parity with AspNetCore and WebApi. * Remove type constraint on the OverridePropertyName overload that takes an expression. Added Skip property to MVC5's CustomizeValidatorAttribute to bring parity with AspNetCore and WebApi integration. Changes in 8.0: * Support validating only specific properties by path. * Added OnFailure method * Deprecated RuleFor(..).SetCollectionValidator in favour of RuleForEach(...).SetValidator * IStringSource.GetString now takes a validation context instead of a model instance. * Introduce PropertyValidatorOptions in order to clean up the IPropretyValidator interface. * Moved the legacy ValidatorAttribute and AttributedValidatorFactory into a separate FluentValidation.Attributes package. * Remove the pre-7.0 localization mechanism * Remove the pre-7.0 methods for custom validation * Removed many other deprecated methods Full release notes can be found at https://github.com/JeremySkinner/FluentValidation/blob/master/Changelog.txt

Version Downloads Last updated
12.0.0 1 6/9/2025
12.0.0-preview1 0 1/2/2025
11.11.0 1 6/8/2025
11.10.0 0 6/14/2025
11.9.2 0 6/10/2024
11.9.1 0 4/23/2024
11.9.0 0 12/21/2023
11.8.1 1 6/9/2025
11.8.0 0 10/19/2023
11.7.1 0 8/12/2023
11.7.0 0 8/11/2023
11.6.0 0 7/4/2023
11.5.2 0 4/7/2023
11.5.1 0 2/20/2023
11.5.0 0 2/13/2023
11.4.0 0 11/23/2022
11.3.0 1 6/9/2025
11.2.2 0 9/11/2022
11.2.1 0 8/28/2022
11.2.0 0 8/8/2022
11.1.1 0 8/6/2022
11.1.0 0 6/9/2025
11.0.3 0 6/10/2022
11.0.2 0 5/27/2022
11.0.1 0 5/7/2022
11.0.0 0 4/30/2022
10.4.0 0 3/11/2022
10.3.6 0 12/13/2021
10.3.5 0 11/30/2021
10.3.4 1 6/6/2025
10.3.3 1 6/6/2025
10.3.1 1 6/6/2025
10.3.0 1 6/6/2025
10.2.3 1 6/6/2025
10.2.2 1 6/6/2025
10.2.1 1 6/6/2025
10.2.0 1 6/6/2025
10.1.0 2 6/6/2025
10.0.4 1 6/6/2025
9.5.4 1 6/6/2025
9.5.3 1 6/6/2025
9.5.2 1 6/6/2025
9.5.1 1 6/6/2025
9.5.0 1 6/6/2025
9.4.0 1 6/6/2025
9.3.0 1 6/6/2025
9.3.0-preview3 1 6/6/2025
9.3.0-preview2 1 6/6/2025
9.3.0-preview1 0 8/26/2020
9.2.2 0 9/20/2020
9.2.1 0 9/19/2020
9.2.0 1 6/6/2025
9.1.3 1 6/6/2025
9.1.2 2 6/6/2025
9.1.1 2 6/6/2025
9.1.0 1 6/6/2025
9.0.1 1 6/6/2025
9.0.0-preview5 1 6/6/2025
9.0.0-preview4 1 6/6/2025
9.0.0-preview3 1 6/6/2025
9.0.0-preview2 1 6/6/2025
9.0.0-preview1 1 6/6/2025
8.6.3 1 6/6/2025
8.6.2 1 6/6/2025
8.6.1 1 6/6/2025
8.6.0 1 6/6/2025
8.5.1 1 6/6/2025
8.5.0 1 6/6/2025
8.5.0-preview5 1 6/6/2025
8.5.0-preview4 1 6/6/2025
8.5.0-preview3 1 6/6/2025
8.5.0-preview2 1 6/6/2025
8.5.0-preview1 2 6/6/2025
8.4.0 1 6/6/2025
8.3.0 1 6/6/2025
8.2.3 1 6/6/2025
8.2.2 1 6/6/2025
8.2.1 1 6/7/2025
8.2.0 0 3/26/2019
8.1.3 0 1/25/2019
8.1.2 1 6/6/2025
8.1.1 1 6/6/2025
8.1.0 0 12/6/2018
8.1.0-preview2 0 11/14/2018
8.1.0-preview1 1 6/6/2025
8.0.101 1 6/7/2025
8.0.100 1 6/6/2025
8.0.0 1 6/6/2025
8.0.0-rc1 1 6/6/2025
8.0.0-preview4 1 6/6/2025
8.0.0-preview3 1 6/6/2025
8.0.0-preview2 1 6/6/2025
7.6.105 1 6/6/2025
7.6.104 1 6/7/2025
7.6.103 1 6/6/2025
7.6.102 1 6/6/2025
7.6.101 0 6/13/2018
7.6.100 1 6/6/2025
7.6.0 1 6/6/2025
7.6.0-preview1 1 6/6/2025
7.5.2 1 6/6/2025
7.5.1 1 6/6/2025
7.5.0 1 6/6/2025
7.4.0 0 1/26/2018
7.3.4 0 1/2/2018
7.3.3 1 6/6/2025
7.3.2 1 6/6/2025
7.3.1 0 12/13/2017
7.3.0 1 6/6/2025
7.3.0-beta3 1 6/6/2025
7.3.0-beta2 1 6/6/2025
7.3.0-beta1 1 6/6/2025
7.2.1 1 6/6/2025
7.2.0 1 6/6/2025
7.2.0-beta3 1 6/6/2025
7.2.0-beta2 1 6/6/2025
7.2.0-beta1 1 6/6/2025
7.1.1 1 6/6/2025
7.1.0 1 6/6/2025
7.1.0-beta1 1 6/6/2025
7.0.3 0 6/7/2017
7.0.2 1 6/6/2025
7.0.1 1 6/6/2025
7.0.0 1 6/6/2025
7.0.0-beta3 1 6/6/2025
7.0.0-beta2 2 6/6/2025
7.0.0-beta1 2 6/6/2025
6.4.1 1 6/6/2025
6.4.1-beta1 1 6/6/2025
6.4.0 0 3/3/2017
6.4.0-rc4 1 6/6/2025
6.4.0-rc3 1 6/6/2025
6.4.0-rc2 0 1/30/2017
6.4.0-rc1 1 6/6/2025
6.4.0-beta9 1 6/6/2025
6.4.0-beta8 1 6/6/2025
6.4.0-beta7 1 6/6/2025
6.4.0-beta6 1 6/6/2025
6.4.0-beta5 1 6/6/2025
6.4.0-beta4 1 6/6/2025
6.4.0-beta3 1 6/6/2025
6.4.0-beta2 1 6/6/2025
6.4.0-beta10 1 6/6/2025
6.4.0-beta1 1 6/6/2025
6.3.4-alpha 1 6/6/2025
6.3.3-alpha 1 6/6/2025
6.2.1 1 6/8/2025
6.2.1-beta1 1 6/6/2025
6.2.0 1 6/8/2025
6.2.0-beta1 1 6/6/2025
6.1.0 1 6/8/2025
6.0.2 1 6/8/2025
6.0.1 1 6/8/2025
6.0.0 1 6/8/2025
5.6.2 1 6/8/2025
5.6.1 1 6/8/2025
5.5.0 1 6/8/2025
5.4.0 1 6/8/2025
5.3.0 1 6/8/2025
5.2.0 1 6/8/2025
5.1.0 1 6/8/2025
5.0.0.1 0 10/24/2013
4.0.0.1 1 6/6/2025
4.0.0 1 6/8/2025
3.4.6 1 6/7/2025
3.4.0 1 6/6/2025
3.3.1 1 6/8/2025
3.2.0 1 6/8/2025
3.1.0 1 6/8/2025
3.0.0.1 1 6/6/2025
3.0.0 1 6/8/2025
2.0.0 0 1/9/2011
1.3.0 1 6/8/2025