7 Appendix B: Product Behavior
The information in this specification is applicable to the following Microsoft products or supplemental software. References to product versions include updates to those products.
The terms "earlier" and "later", when used with a product version, refer to either all preceding versions or all subsequent versions, respectively. The term "through" refers to the inclusive range of versions. Applicable Microsoft products are listed chronologically in this section.
This document specifies version-specific details in the Microsoft .NET Framework. For information about which versions of the .NET Framework are available in each released Windows product or as supplemental software, see [MS-NETOD] section 4.
Framework Releases
Microsoft .NET Framework 4.5
Microsoft .NET Framework 4.6
Microsoft .NET Framework 4.7
Microsoft .NET Framework 4.8
Windows Client Releases
Windows 8 operating system
Windows 8.1 operating system
Windows 10 operating system
Windows 11 operating system
Windows Server Releases
Windows Server 2012 operating system
Windows Server 2012 R2 operating system
Windows Server 2016 operating system
Windows Server operating system
Windows Server 2019 operating system
Windows Server 2022 operating system
Exceptions, if any, are noted in this section. If an update version, service pack or Knowledge Base (KB) number appears with a product name, the behavior changed in that update. The new behavior also applies to subsequent updates unless otherwise specified. If a product edition appears with the product version, behavior is different in that product edition.
Unless otherwise specified, any statement of optional behavior in this specification that is prescribed using the terms "SHOULD" or "SHOULD NOT" implies product behavior in accordance with the SHOULD or SHOULD NOT prescription. Unless otherwise specified, the term "MAY" implies that the product does not follow the prescription.
<1> Section 2.1: The Websocket protocol is supported only on Windows 8 and later and on Windows Server 2012 and later.