feat!: version policy update (#888)

BREAKING CHANGE: This commit brings the release into alignment with the new version policy. See #887 for details.

docs/Introduction.md

@@ -2,9 +2,19 @@
 
 ## About Finbuckle.MultiTenant
 
-Finbuckle.MultiTenant is open source multitenancy middleware library for .NET. It enables tenant resolution, per-tenant app behavior, and per-tenant data isolation. See [https://www.finbuckle.com/multitenant](https://www.finbuckle.com/multi-tenant) for more details and documentation.
+Finbuckle.MultiTenant is open source multitenancy middleware library for .NET. It enables tenant resolution, per-tenant
+app behavior, and per-tenant data isolation.
+See [https://www.finbuckle.com/multitenant](https://www.finbuckle.com/multi-tenant) for more details and documentation.
 
-**This release supports .NET 6, .NET 7, and .NET 8.**
+**This release supports .NET 8, .NET 7, and .NET 6.**
+
+Beginning with Finbuckle.MultiTenant 8.0.0 major version releases align with .NET major version releases and target all
+Microsoft supported major .NET versions at the time of initial release.
+
+New development focuses on the latest Finbuckle.MultiTenant release version while critical security and severe bug 
+fixes will be released for prior versions which target .NET versions supported by Microsoft.
+
+In general, you should target the version of Finbuckle.MultiTenant that matches your .NET version.
 
 ## Main Build and Test Status
 
@@ -12,7 +22,8 @@ Finbuckle.MultiTenant is open source multitenancy middleware library for .NET. I
 
 ## License
 
-This project uses the [Apache 2.0 license](https://www.apache.org/licenses/LICENSE-2.0). See the LICENSE file for license information.
+This project uses the [Apache 2.0 license](https://www.apache.org/licenses/LICENSE-2.0). See the LICENSE file for
+license information.
 
 ## .NET Foundation
 
@@ -20,13 +31,16 @@ This project is supported by the [.NET Foundation](https://dotnetfoundation.org)
 
 ## Code of Conduct
 
-This project has adopted the code of conduct defined by the Contributor Covenant to clarify expected behavior in our community.
-For more information see the [.NET Foundation Code of Conduct](https://dotnetfoundation.org/code-of-conduct) or the CONTRIBUTING.md file.
+This project has adopted the code of conduct defined by the Contributor Covenant to clarify expected behavior in our
+community. For more information see the [.NET Foundation Code of Conduct](https://dotnetfoundation.org/code-of-conduct)
+or the CONTRIBUTING.md file.
 
 ## Community
 
-Check out the [GitHub repository](https://github.com/Finbuckle/Finbuckle.MultiTenant) to ask a question, make a request, or check out the code!
+Check out the [GitHub repository](https://github.com/Finbuckle/Finbuckle.MultiTenant) to ask a question, make a request,
+or check out the code!
 
 ## Sample Projects
 
-In addition to this documentation a variety of sample projects are available in the 'samples' directory. Be sure to read the information on the index page of each sample and the code comments in the `Startup` class.
+In addition to this documentation a variety of sample projects are available in the 'samples' directory. Be sure to read
+the information on the index page of each sample and the code comments in the `Startup` class.