FluentValidation 8.0.0-preview4

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.DependencyInjectionExtensions
Dependency injection extensions for FluentValidation
17
FluentValidation.AspNetCore
AspNetCore integration for FluentValidation
15
FluentValidation.AspNetCore
AspNetCore integration for FluentValidation
14
FluentValidation.AspNetCore
AspNetCore integration for FluentValidation
13
FluentValidation.DependencyInjectionExtensions
Dependenecy injection extensions for FluentValidation
13
FluentValidation.DependencyInjectionExtensions
Dependency injection extensions for FluentValidation
12
FluentValidation.AspNetCore
AspNetCore integration for FluentValidation
12
FluentValidation.AspNetCore
AspNetCore integration for FluentValidation
11
FluentValidation.DependencyInjectionExtensions
Dependency injection extensions for FluentValidation
11

FluentValidation 8 is a major release. Please read the upgrade notes at https://fluentvalidation.net/upgrading-to-8

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
12.1.1 11 12/12/2025
12.1.0 12 12/14/2025
12.0.0 10 12/12/2025
12.0.0-preview1 6 12/11/2025
11.12.0 15 12/14/2025
11.11.0 11 12/15/2025
11.10.0 7 12/18/2025
11.9.2 11 12/28/2025
11.9.1 8 12/11/2025
11.9.0 10 12/17/2025
11.8.1 10 12/28/2025
11.8.0 9 12/12/2025
11.7.1 9 12/15/2025
11.7.0 9 12/14/2025
11.6.0 10 12/13/2025
11.5.2 5 12/13/2025
11.5.1 9 12/12/2025
11.5.0 7 12/28/2025
11.4.0 10 12/28/2025
11.3.0 8 12/28/2025
11.2.2 8 12/13/2025
11.2.1 10 12/13/2025
11.2.0 8 12/25/2025
11.1.1 7 12/28/2025
11.1.0 7 12/22/2025
11.0.3 8 12/13/2025
11.0.2 9 12/14/2025
11.0.1 10 12/14/2025
11.0.0 13 12/27/2025
10.4.0 10 12/28/2025
10.3.6 8 12/21/2025
10.3.5 10 12/22/2025
10.3.4 10 12/18/2025
10.3.3 9 12/13/2025
10.3.1 9 12/28/2025
10.3.0 8 12/12/2025
10.2.3 8 12/11/2025
10.2.2 7 12/18/2025
10.2.1 12 12/11/2025
10.2.0 10 12/13/2025
10.1.0 6 12/28/2025
10.0.4 5 12/28/2025
9.5.4 11 12/18/2025
9.5.3 5 12/28/2025
9.5.2 7 12/09/2025
9.5.1 11 12/24/2025
9.5.0 10 12/13/2025
9.4.0 7 12/28/2025
9.3.0 6 12/28/2025
9.3.0-preview3 7 12/28/2025
9.3.0-preview2 4 12/28/2025
9.3.0-preview1 9 12/28/2025
9.2.2 12 12/14/2025
9.2.1 8 12/28/2025
9.2.0 9 12/20/2025
9.1.3 9 12/11/2025
9.1.2 10 12/13/2025
9.1.1 10 12/18/2025
9.1.0 10 12/20/2025
9.0.1 7 12/13/2025
9.0.0-preview5 11 12/23/2025
9.0.0-preview4 9 12/14/2025
9.0.0-preview3 7 12/18/2025
9.0.0-preview2 7 12/28/2025
9.0.0-preview1 6 12/28/2025
8.6.3 12 12/14/2025
8.6.2 8 12/25/2025
8.6.1 8 12/20/2025
8.6.0 10 12/15/2025
8.5.1 7 12/28/2025
8.5.0 12 12/14/2025
8.5.0-preview5 9 12/23/2025
8.5.0-preview4 9 12/13/2025
8.5.0-preview3 9 12/24/2025
8.5.0-preview2 8 12/18/2025
8.5.0-preview1 11 12/15/2025
8.4.0 10 12/16/2025
8.3.0 14 12/20/2025
8.2.3 8 12/20/2025
8.2.2 11 12/13/2025
8.2.1 7 12/20/2025
8.2.0 7 12/28/2025
8.1.3 10 12/20/2025
8.1.2 8 12/28/2025
8.1.1 7 12/28/2025
8.1.0 8 12/28/2025
8.1.0-preview2 5 12/28/2025
8.1.0-preview1 5 12/28/2025
8.0.101 11 12/14/2025
8.0.100 7 12/28/2025
8.0.0 8 12/13/2025
8.0.0-rc1 6 12/28/2025
8.0.0-preview4 10 12/22/2025
8.0.0-preview3 8 12/25/2025
8.0.0-preview2 8 12/28/2025
7.6.105 12 12/21/2025
7.6.104 17 12/24/2025
7.6.103 9 12/18/2025
7.6.102 7 12/15/2025
7.6.101 10 12/28/2025
7.6.100 11 12/13/2025
7.6.0 6 12/21/2025
7.6.0-preview1 10 12/14/2025
7.5.2 14 12/13/2025
7.5.1 7 12/20/2025
7.5.0 8 12/25/2025
7.4.0 10 01/03/2026
7.3.4 12 12/18/2025
7.3.3 8 12/28/2025
7.3.2 12 12/14/2025
7.3.1 10 12/15/2025
7.3.0 7 12/28/2025
7.3.0-beta3 9 12/28/2025
7.3.0-beta2 14 12/21/2025
7.3.0-beta1 7 12/28/2025
7.2.1 9 12/20/2025
7.2.0 10 12/28/2025
7.2.0-beta3 9 12/28/2025
7.2.0-beta2 8 12/28/2025
7.2.0-beta1 10 12/28/2025
7.1.1 12 12/15/2025
7.1.0 6 12/28/2025
7.1.0-beta1 11 12/18/2025
7.0.3 9 12/28/2025
7.0.2 7 12/28/2025
7.0.1 8 12/12/2025
7.0.0 12 12/14/2025
7.0.0-beta3 6 12/17/2025
7.0.0-beta2 12 12/24/2025
7.0.0-beta1 9 12/15/2025
6.4.1 10 12/20/2025
6.4.1-beta1 7 12/28/2025
6.4.0 10 12/18/2025
6.4.0-rc4 14 12/28/2025
6.4.0-rc3 6 12/28/2025
6.4.0-rc2 5 12/28/2025
6.4.0-rc1 8 12/28/2025
6.4.0-beta9 8 12/18/2025
6.4.0-beta8 9 12/28/2025
6.4.0-beta7 11 12/13/2025
6.4.0-beta6 11 12/13/2025
6.4.0-beta5 7 12/28/2025
6.4.0-beta4 9 12/28/2025
6.4.0-beta3 8 12/27/2025
6.4.0-beta2 6 12/28/2025
6.4.0-beta10 6 12/28/2025
6.4.0-beta1 10 12/13/2025
6.3.4-alpha 10 12/28/2025
6.3.3-alpha 10 12/23/2025
6.2.1 9 12/14/2025
6.2.1-beta1 8 12/28/2025
6.2.0 8 12/13/2025
6.2.0-beta1 6 12/28/2025
6.1.0 7 01/08/2026
6.0.2 10 12/14/2025
6.0.1 9 12/09/2025
6.0.0 12 12/14/2025
5.6.2 9 01/05/2026
5.6.1 7 12/14/2025
5.5.0 12 12/14/2025
5.4.0 8 01/12/2026
5.3.0 5 01/13/2026
5.2.0 17 12/14/2025
5.1.0 12 12/11/2025
5.0.0.1 6 12/28/2025
4.0.0.1 7 12/28/2025
4.0.0 7 12/10/2025
3.4.6 8 12/14/2025
3.4.0 13 12/14/2025
3.3.1 9 12/14/2025
3.2.0 12 12/14/2025
3.1.0 11 12/12/2025
3.0.0.1 7 12/12/2025
3.0.0 10 12/20/2025
2.0.0 10 12/29/2025
1.3.0 12 12/13/2025