FluentValidation 9.0.0-preview3
Prefix ReservedSee the version list below for details.
dotnet add package FluentValidation --version 9.0.0-preview3
NuGet\Install-Package FluentValidation -Version 9.0.0-preview3
<PackageReference Include="FluentValidation" Version="9.0.0-preview3" />
<PackageVersion Include="FluentValidation" Version="9.0.0-preview3" />
<PackageReference Include="FluentValidation" />
paket add FluentValidation --version 9.0.0-preview3
#r "nuget: FluentValidation, 9.0.0-preview3"
#:package FluentValidation@9.0.0-preview3
#addin nuget:?package=FluentValidation&version=9.0.0-preview3&prerelease
#tool nuget:?package=FluentValidation&version=9.0.0-preview3&prerelease
A validation library for .NET that uses a fluent interface to construct strongly-typed validation rules.
| Product | Versions Compatible and additional computed target framework versions. | 
|---|---|
| .NET | net5.0 was computed. net5.0-windows was computed. net6.0 was computed. net6.0-android was computed. net6.0-ios was computed. net6.0-maccatalyst was computed. net6.0-macos was computed. net6.0-tvos was computed. net6.0-windows was computed. net7.0 was computed. net7.0-android was computed. net7.0-ios was computed. net7.0-maccatalyst was computed. net7.0-macos was computed. net7.0-tvos was computed. net7.0-windows was computed. net8.0 was computed. net8.0-android was computed. net8.0-browser was computed. net8.0-ios was computed. net8.0-maccatalyst was computed. net8.0-macos was computed. net8.0-tvos was computed. net8.0-windows was computed. net9.0 was computed. net9.0-android was computed. net9.0-browser was computed. net9.0-ios was computed. net9.0-maccatalyst was computed. net9.0-macos was computed. net9.0-tvos was computed. net9.0-windows was computed. net10.0 was computed. net10.0-android was computed. net10.0-browser was computed. net10.0-ios was computed. net10.0-maccatalyst was computed. net10.0-macos was computed. net10.0-tvos was computed. net10.0-windows was computed. | 
| .NET Core | netcoreapp2.0 was computed. netcoreapp2.1 was computed. netcoreapp2.2 was computed. netcoreapp3.0 was computed. netcoreapp3.1 was computed. | 
| .NET Standard | netstandard2.0 is compatible. netstandard2.1 was computed. | 
| .NET Framework | net461 is compatible. net462 was computed. net463 was computed. net47 was computed. net471 was computed. net472 was computed. net48 was computed. net481 was computed. | 
| MonoAndroid | monoandroid was computed. | 
| MonoMac | monomac was computed. | 
| MonoTouch | monotouch was computed. | 
| Tizen | tizen40 was computed. tizen60 was computed. | 
| Xamarin.iOS | xamarinios was computed. | 
| Xamarin.Mac | xamarinmac was computed. | 
| Xamarin.TVOS | xamarintvos was computed. | 
| Xamarin.WatchOS | xamarinwatchos was computed. | 
- 
                                                    
.NETFramework 4.6.1
- No dependencies.
 
 - 
                                                    
.NETStandard 2.0
- No dependencies.
 
 
NuGet packages (2.8K)
Showing the top 5 NuGet packages that depend on FluentValidation:
| Package | Downloads | 
|---|---|
| 
                                                        
                                                            FluentValidation.DependencyInjectionExtensions
                                                        
                                                            
                                                         Dependency injection extensions for FluentValidation  | 
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| 
                                                        
                                                            FluentValidation.AspNetCore
                                                        
                                                            
                                                         AspNetCore integration for FluentValidation  | 
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| 
                                                        
                                                            Ocelot
                                                        
                                                         Ocelot is an API gateway based on .NET stack.  | 
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| 
                                                        
                                                            Reo.Core.Validation
                                                        
                                                         Package Description  | 
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| 
                                                        
                                                            Reo.Core.DataModels
                                                        
                                                         Package Description  | 
                                                    
GitHub repositories (253)
Showing the top 20 popular GitHub repositories that depend on FluentValidation:
| Repository | Stars | 
|---|---|
| 
                                                        
                                                            ardalis/CleanArchitecture
                                                        
                                                         
                                                            Clean Architecture Solution Template: A proven Clean Architecture Template for ASP.NET Core 9
                                                         
                                                     | 
                                                    |
| 
                                                        
                                                            abpframework/abp
                                                        
                                                         
                                                            Open-source web application framework for ASP.NET Core! Offers an opinionated architecture to build enterprise software solutions with best practices on top of the .NET. Provides the fundamental infrastructure, cross-cutting-concern implementations, startup templates, application modules, UI themes, tooling and documentation.
                                                         
                                                     | 
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| 
                                                        
                                                            kgrzybek/modular-monolith-with-ddd
                                                        
                                                         
                                                            Full Modular Monolith application with Domain-Driven Design approach.
                                                         
                                                     | 
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| 
                                                        
                                                            Sonarr/Sonarr
                                                        
                                                         
                                                            Smart PVR for newsgroup and bittorrent users.
                                                         
                                                     | 
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| 
                                                        
                                                            Radarr/Radarr
                                                        
                                                         
                                                            Movie organizer/manager for usenet and torrent users.
                                                         
                                                     | 
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| 
                                                        
                                                            aspnetboilerplate/aspnetboilerplate
                                                        
                                                         
                                                            ASP.NET Boilerplate - Web Application Framework
                                                         
                                                     | 
                                                    |
| 
                                                        
                                                            dotnet-architecture/eShopOnWeb
                                                        
                                                         
                                                            Sample ASP.NET Core 8.0 reference application, now community supported: https://github.com/NimblePros/eShopOnWeb
                                                         
                                                     | 
                                                    |
| 
                                                        
                                                            MudBlazor/MudBlazor
                                                        
                                                         
                                                            Blazor Component Library based on Material Design principles with an emphasis on ease of use and extensibility
                                                         
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| 
                                                        
                                                            ThreeMammals/Ocelot
                                                        
                                                         
                                                            .NET API Gateway
                                                         
                                                     | 
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| 
                                                        
                                                            NancyFx/Nancy
                                                        
                                                         
                                                            Lightweight, low-ceremony, framework for building HTTP based services on .Net and Mono
                                                         
                                                     | 
                                                    |
| 
                                                        
                                                            EduardoPires/EquinoxProject
                                                        
                                                         
                                                            Web Application ASP.NET 9 using Clean Architecture, DDD, CQRS, Event Sourcing and a lot of good practices
                                                         
                                                     | 
                                                    |
| 
                                                        
                                                            canton7/SyncTrayzor
                                                        
                                                         
                                                            Windows tray utility / filesystem watcher / launcher for Syncthing
                                                         
                                                     | 
                                                    |
| 
                                                        
                                                            FastEndpoints/FastEndpoints
                                                        
                                                         
                                                            A light-weight REST API development framework for ASP.NET 8 and newer.
                                                         
                                                     | 
                                                    |
| 
                                                        
                                                            Prowlarr/Prowlarr
                                                        
                                                         
                                                            Prowlarr is an indexer manager/proxy built on the popular *arr .net/reactjs base stack to integrate with your various PVR apps, supporting management of both Torrent Trackers and Usenet Indexers.
                                                         
                                                     | 
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| 
                                                        
                                                            jasontaylordev/NorthwindTraders
                                                        
                                                         
                                                            Northwind Traders is a sample application built using ASP.NET Core and Entity Framework Core.
                                                         
                                                     | 
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| 
                                                        
                                                            Lidarr/Lidarr
                                                        
                                                         
                                                            Looks and smells like Sonarr but made for music.
                                                         
                                                     | 
                                                    |
| 
                                                        
                                                            microsoft/RulesEngine
                                                        
                                                         
                                                            A fast and reliable .NET Rules Engine with extensive Dynamic expression support
                                                         
                                                     | 
                                                    |
| 
                                                        
                                                            fullstackhero/blazor-starter-kit
                                                        
                                                         
                                                            Clean Architecture Template for Blazor WebAssembly Built with MudBlazor Components.
                                                         
                                                     | 
                                                    |
| 
                                                        
                                                            Megabit/Blazorise
                                                        
                                                         
                                                            Blazorise is a component library built on top of Blazor with support for CSS frameworks like Bootstrap, Tailwind, Bulma, AntDesign, and Material.
                                                         
                                                     | 
                                                    |
| 
                                                        
                                                            Readarr/Readarr
                                                        
                                                         
                                                            Book Manager and Automation (Sonarr for Ebooks)
                                                         
                                                     | 
                                                    
| Version | Downloads | Last Updated | 
|---|---|---|
| 12.1.0 | 13,864 | 11/3/2025 | 
| 12.0.0 | 16,471,755 | 5/5/2025 | 
| 12.0.0-preview1 | 239,910 | 1/2/2025 | 
| 11.12.0 | 1,824 | 11/3/2025 | 
| 11.11.0 | 45,406,961 | 11/16/2024 | 
| 11.10.0 | 20,333,850 | 9/15/2024 | 
| 11.9.2 | 27,095,459 | 6/10/2024 | 
| 11.9.1 | 13,896,263 | 4/23/2024 | 
| 11.9.0 | 33,747,844 | 12/21/2023 | 
| 11.8.1 | 9,747,085 | 11/22/2023 | 
| 11.8.0 | 9,895,156 | 10/19/2023 | 
| 11.7.1 | 12,058,489 | 8/12/2023 | 
| 11.7.0 | 141,364 | 8/11/2023 | 
| 11.6.0 | 9,182,494 | 7/4/2023 | 
| 11.5.2 | 20,202,112 | 4/7/2023 | 
| 11.5.1 | 67,163,523 | 2/20/2023 | 
| 11.5.0 | 3,152,304 | 2/13/2023 | 
| 11.4.0 | 20,129,993 | 11/23/2022 | 
| 11.3.0 | 3,763,918 | 11/10/2022 | 
| 11.2.2 | 17,147,958 | 9/11/2022 | 
| 11.2.1 | 23,917,325 | 8/28/2022 | 
| 11.2.0 | 7,871,772 | 8/8/2022 | 
| 11.1.1 | 681,210 | 8/6/2022 | 
| 11.1.0 | 13,630,731 | 6/22/2022 | 
| 11.0.3 | 3,699,629 | 6/10/2022 | 
| 11.0.2 | 5,634,157 | 5/27/2022 | 
| 11.0.1 | 6,956,176 | 5/7/2022 | 
| 11.0.0 | 6,949,555 | 4/30/2022 | 
| 10.4.0 | 21,501,007 | 3/11/2022 | 
| 10.3.6 | 28,013,247 | 12/13/2021 | 
| 10.3.5 | 3,299,540 | 11/30/2021 | 
| 10.3.4 | 10,554,361 | 10/22/2021 | 
| 10.3.3 | 12,456,331 | 8/24/2021 | 
| 10.3.1 | 752,300 | 8/19/2021 | 
| 10.3.0 | 8,708,050 | 7/9/2021 | 
| 10.2.3 | 8,726,108 | 6/3/2021 | 
| 10.2.2 | 475,937 | 6/1/2021 | 
| 10.2.1 | 1,392,533 | 5/30/2021 | 
| 10.2.0 | 393,987 | 5/28/2021 | 
| 10.1.0 | 5,613,598 | 4/28/2021 | 
| 10.0.4 | 4,384,142 | 4/17/2021 | 
| 9.5.4 | 7,519,429 | 4/5/2021 | 
| 9.5.3 | 4,137,895 | 3/15/2021 | 
| 9.5.2 | 2,060,812 | 3/8/2021 | 
| 9.5.1 | 6,909,894 | 2/11/2021 | 
| 9.5.0 | 3,483,044 | 1/31/2021 | 
| 9.4.0 | 3,161,008 | 1/14/2021 | 
| 9.3.0 | 15,234,217 | 11/10/2020 | 
| 9.3.0-preview3 | 40,066 | 10/19/2020 | 
| 9.3.0-preview2 | 154,223 | 9/15/2020 | 
| 9.3.0-preview1 | 13,629 | 8/26/2020 | 
| 9.2.2 | 7,296,793 | 9/20/2020 | 
| 9.2.1 | 33,467 | 9/19/2020 | 
| 9.2.0 | 8,105,896 | 8/26/2020 | 
| 9.1.3 | 1,046,133 | 8/19/2020 | 
| 9.1.2 | 988,675 | 8/12/2020 | 
| 9.1.1 | 686,526 | 8/8/2020 | 
| 9.1.0 | 314,088 | 8/8/2020 | 
| 9.0.1 | 5,682,801 | 7/14/2020 | 
| 9.0.0-preview5 | 90,526 | 5/23/2020 | 
| 9.0.0-preview4 | 147,480 | 4/22/2020 | 
| 9.0.0-preview3 | 208,231 | 2/29/2020 | 
| 9.0.0-preview2 | 32,700 | 2/21/2020 | 
| 9.0.0-preview1 | 101,094 | 2/8/2020 | 
| 8.6.3 | 7,919,403 | 8/28/2020 | 
| 8.6.2 | 29,442,119 | 2/29/2020 | 
| 8.6.1 | 13,298,065 | 12/28/2019 | 
| 8.6.0 | 4,403,109 | 12/4/2019 | 
| 8.5.1 | 3,943,035 | 11/2/2019 | 
| 8.5.0 | 6,723,327 | 9/24/2019 | 
| 8.5.0-preview5 | 70,845 | 9/1/2019 | 
| 8.5.0-preview4 | 102,933 | 7/23/2019 | 
| 8.5.0-preview3 | 32,675 | 7/10/2019 | 
| 8.5.0-preview2 | 89,273 | 6/13/2019 | 
| 8.5.0-preview1 | 64,322 | 5/10/2019 | 
| 8.4.0 | 15,032,734 | 5/10/2019 | 
| 8.3.0 | 4,206,042 | 4/24/2019 | 
| 8.2.3 | 739,967 | 4/12/2019 | 
| 8.2.2 | 1,139,798 | 4/5/2019 | 
| 8.2.1 | 505,410 | 4/4/2019 | 
| 8.2.0 | 1,105,013 | 3/26/2019 | 
| 8.1.3 | 5,239,248 | 1/25/2019 | 
| 8.1.2 | 2,409,162 | 12/18/2018 | 
| 8.1.1 | 619,984 | 12/11/2018 | 
| 8.1.0 | 850,479 | 12/6/2018 | 
| 8.1.0-preview2 | 29,899 | 11/14/2018 | 
| 8.1.0-preview1 | 28,209 | 10/14/2018 | 
| 8.0.101 | 961,129 | 11/24/2018 | 
| 8.0.100 | 4,159,767 | 9/4/2018 | 
| 8.0.0 | 1,174,063 | 8/16/2018 | 
| 8.0.0-rc1 | 54,513 | 7/24/2018 | 
| 8.0.0-preview4 | 26,115 | 7/16/2018 | 
| 8.0.0-preview3 | 24,716 | 7/13/2018 | 
| 8.0.0-preview2 | 24,568 | 7/13/2018 | 
| 7.6.105 | 1,880,495 | 8/11/2018 | 
| 7.6.104 | 2,834,108 | 7/6/2018 | 
| 7.6.103 | 1,328,743 | 6/16/2018 | 
| 7.6.102 | 344,221 | 6/14/2018 | 
| 7.6.101 | 78,049 | 6/13/2018 | 
| 7.6.100 | 181,345 | 6/7/2018 | 
| 7.6.0 | 411,597 | 6/1/2018 | 
| 7.6.0-preview1 | 52,903 | 4/12/2018 | 
| 7.5.2 | 4,005,037 | 3/16/2018 | 
| 7.5.1 | 282,584 | 3/11/2018 | 
| 7.5.0 | 756,650 | 2/26/2018 | 
| 7.4.0 | 2,382,373 | 1/26/2018 | 
| 7.3.4 | 1,140,836 | 1/2/2018 | 
| 7.3.3 | 199,472 | 12/22/2017 | 
| 7.3.2 | 76,922 | 12/21/2017 | 
| 7.3.1 | 349,821 | 12/13/2017 | 
| 7.3.0 | 127,823 | 12/13/2017 | 
| 7.3.0-beta3 | 28,586 | 12/8/2017 | 
| 7.3.0-beta2 | 47,617 | 11/20/2017 | 
| 7.3.0-beta1 | 25,420 | 11/11/2017 | 
| 7.2.1 | 2,965,196 | 10/24/2017 | 
| 7.2.0 | 852,037 | 10/5/2017 | 
| 7.2.0-beta3 | 41,870 | 9/5/2017 | 
| 7.2.0-beta2 | 27,683 | 8/22/2017 | 
| 7.2.0-beta1 | 23,890 | 8/19/2017 | 
| 7.1.1 | 2,403,876 | 7/25/2017 | 
| 7.1.0 | 564,738 | 6/28/2017 | 
| 7.1.0-beta1 | 23,665 | 6/24/2017 | 
| 7.0.3 | 765,156 | 6/7/2017 | 
| 7.0.2 | 291,967 | 5/26/2017 | 
| 7.0.1 | 98,720 | 5/23/2017 | 
| 7.0.0 | 757,027 | 5/19/2017 | 
| 7.0.0-beta3 | 67,007 | 5/1/2017 | 
| 7.0.0-beta2 | 27,339 | 4/17/2017 | 
| 7.0.0-beta1 | 24,937 | 4/7/2017 | 
| 6.4.1 | 2,219,655 | 3/15/2017 | 
| 6.4.1-beta1 | 23,954 | 3/13/2017 | 
| 6.4.0 | 1,073,059 | 3/3/2017 | 
| 6.4.0-rc4 | 146,731 | 2/13/2017 | 
| 6.4.0-rc3 | 39,905 | 2/3/2017 | 
| 6.4.0-rc2 | 39,963 | 1/30/2017 | 
| 6.4.0-rc1 | 23,762 | 1/30/2017 | 
| 6.4.0-beta9 | 91,790 | 11/21/2016 | 
| 6.4.0-beta8 | 50,765 | 10/31/2016 | 
| 6.4.0-beta7 | 24,404 | 10/28/2016 | 
| 6.4.0-beta6 | 24,705 | 10/25/2016 | 
| 6.4.0-beta5 | 24,279 | 10/24/2016 | 
| 6.4.0-beta4 | 24,380 | 10/21/2016 | 
| 6.4.0-beta3 | 71,744 | 7/4/2016 | 
| 6.4.0-beta2 | 25,277 | 7/1/2016 | 
| 6.4.0-beta10 | 23,474 | 1/30/2017 | 
| 6.4.0-beta1 | 28,674 | 6/28/2016 | 
| 6.3.4-alpha | 434,311 | 6/1/2016 | 
| 6.3.3-alpha | 23,266 | 5/27/2016 | 
| 6.2.1 | 5,543,037 | 2/26/2016 | 
| 6.2.1-beta1 | 28,745 | 2/24/2016 | 
| 6.2.0 | 172,541 | 2/22/2016 | 
| 6.2.0-beta1 | 24,597 | 2/12/2016 | 
| 6.1.0 | 440,198 | 1/18/2016 | 
| 6.0.2 | 118,175 | 1/5/2016 | 
| 6.0.1 | 40,204 | 1/5/2016 | 
| 6.0.0 | 135,693 | 12/22/2015 | 
| 5.6.2 | 1,636,866 | 5/29/2015 | 
| 5.6.1 | 35,007 | 5/29/2015 | 
| 5.5.0 | 1,227,805 | 10/31/2014 | 
| 5.4.0 | 613,728 | 7/3/2014 | 
| 5.3.0 | 105,906 | 5/27/2014 | 
| 5.2.0 | 77,088 | 5/21/2014 | 
| 5.1.0 | 1,073,458 | 3/11/2014 | 
| 5.0.0.1 | 563,531 | 10/24/2013 | 
| 4.0.0.1 | 307,975 | 7/18/2013 | 
| 4.0.0 | 121,073 | 4/29/2013 | 
| 3.4.6 | 430,549 | 8/30/2012 | 
| 3.4.0 | 72,330 | 8/17/2012 | 
| 3.3.1 | 93,783 | 3/30/2012 | 
| 3.2.0 | 78,569 | 11/14/2011 | 
| 3.1.0 | 53,271 | 7/30/2011 | 
| 3.0.0.1 | 26,534 | 7/5/2011 | 
| 3.0.0 | 47,507 | 6/25/2011 | 
| 2.0.0 | 77,918 | 1/9/2011 | 
| 1.3.0 | 436,891 | 1/7/2011 | 
FluentValidation 9 is a major release. Please read the upgrade notes at https://docs.fluentvalidation.net/en/latest/upgrading-to-9.html
Changes in 9.0.0:
* Removed support for netstandard1.1 and netstandard1.6
* Default email validation mode now uses the same logic as ASP.NET Core. Previous regex behaviour is opt-in.
* TestHelper advanced mode now has more features (see https://docs.fluentvalidation.net/en/latest/testing.html#advanced-test-extensions)
* Equal/NotEqual now perform ordinal comparison when used with string properties
* Severity can now be set dynamically with a callback
* Removed WithLocalizedMessage (WithMessage that takes a callback is the replacement)
* Removed ResourceName from ValidationFailure
* Removed ResourceName and ResourceType from IStringSource.
* Removed SetCollectionValidator which was deprecated in 8.0
* Additional overload of OnAnyFailure that can receive a collection of validation failures
* Remove DisplayAttribute integration and reference to DataAnnotations.
* ComparisonProperty placeholder is now formatted like PropertyName
* Translations of default error messages into other languages are now lazily-loaded
* Added Slovenian translations of default error messages.
* Added WithMessageArgument to the test helpers.
* Add additional overload of SetValidator that takes a Func that receives the current property value.
* ASP.NET Core: FluentValidationModelValidatorProvider and FluentValidationModelValidator are now public.
* Work around a bug in ASP.NET Core's integration testing components that can cause ConfigureServices to run multiple times.
* SourceLink integration.
* {CollectionIndex} placeholder can now be accessed in child validators.
Full release notes can be found at https://github.com/FluentValidation/FluentValidation/blob/master/Changelog.txt
FluentValidation 8 is a major release. Please read the upgrade notes at https://fluentvalidation.net/upgrading-to-8
Changes in 8.6.2:
* Ensure CollectionIndex works in async workflow.
Changes in 8.6.1:
* Added explicit netcoreapp3.1 target to the ASP.NET Core integration.
Changes in 8.6.0:
* Add support for ASP.NET Core 3.1
* Fixed issue with property indexers being incorrectly stripped out when using test extensions.
* AddToModelState no longer includes a dot if PropertyName is null
Changes in 8.5.1:
* Ensure lazily loaded calls to WithMessage can be used for client-side validation, provided they don't attempt to access model properties from inside the delegate (eg when using IStringLocalizer).
* Fix issue where OnFailure didn't work properly when invoked on validators with conditions.
Changes in 8.5.0:
* Add additional overload of the EmailAddress validator for compatibility with ASP.NET Core's default email validation.
* Simplify the advanced testhelper syntax.
* Add support for ASP.NET Core 3.
* Add support for defining child rules inline.
* ValidatorDescriptor now has consistent handling of model-level rules.
* RuleForEach can now access collection index in error message with {CollectionIndex} placeholder.
* Welsh language translations of default error messages.
* Hungrian language translations of default error messages.
* Indonesian language translations of default error messages.
* Using RuleForEach combined with When is now more intuitive.
* Fixed order of rule execution when using async validation.
Changes in 8.4.0:
* Added simplified version of several messages across all translations to aid with ASP.NET Clientside validation.
* New enum validator for string properties.
Changes in 8.3.0:
* Fix issue in ASP.NET Core integration with GetServiceProvider not working correctly when invoked against a CustomContext/MessageBuilderContext.
* Improved how LanguageStringSource works with error-code overrides.
* Fix thread-safety issue with use of PropertyValidatorOptions.Empty (now removed).
* Improved how calls to When/Unless are handled internally.
* DelegatingValidator is now marked as deprecated.
* Improvements to Croatian language translations.
* Improvements to Georgian language translations.
* Resolved subtle bug where top-level WhenAsync wouldn't work correctly when wrapping a top-level call to When.
Changes in 8.2.3:
* Fix issue in WebApi integration where DataAnnotations validators could generate duplicate messages when in the same project as FluentValidation.
Changes in 8.2.2:
* Fix FluentValidation.DependencyInjection package name.
Changes in 8.2.1:
* Resolved issue using InjectValidator with RuleForEach.
* Add support for a default IValidatorInterceptor to be registered with the ASP.NET Core Service Provider.
Changes in 8.2.0:
* Add extensions for injecting child validators using the ASP.NET Core Service Provider.
* Implement RuleFor(...).ForEach(...) as an alternative to RuleForEach.
* WithLocalizedMessage is deprecated. Use the overload of WithMessage that takes a Func instead.
Changes in 8.1.3:
* Resolved issue where clientside validation was incorrectly generating metadata for rules with shared conditions.
* ScalePrecisionValidator now has a public method in the fluent interface.
* Fix placeholder names in ScalePrecisionValidator for consistency.
* Updates to Portuguese (Brazil) translations.
Changes in 8.1.2:
* Fix issue where shared When/Unless conditions didn't execute correctly when used with RuleForEach.
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