Final week, Microsoft launched previews of updates for numerous variations of Home windows earlier than it unleashes the ultimate variations subsequent Patch Tuesday. Included amongst these was the KB5016691 replace for Home windows 11 which –although billed primarily as a bug-fixing replace — added new Server Message Block (SMB) compression choices.
The identical adjustments have been launched to Home windows Server 2022 with the KB5016693 replace, and Microsoft has printed particulars of simply what the adjustments imply, in addition to explaining easy methods to reap the benefits of the brand new choices and settings.
With the discharge of the replace previews, Microsoft didn’t give an excessive amount of details about the SMB compression adjustments. On the time, the corporate stated merely: “New! Compresses a file no matter its dimension when you have configured Server Message Block (SMB) Compression”.
Within the newly printed weblog put up, nevertheless, there’s a far more detailed rationalization of what has been modified and added.
Microsoft Ned Pyle explains:
There was an idiosyncrasy within the preliminary design that we modified with the discharge of Home windows Server 2022 replace KB5016693 (OS Construct 20348.946) and Home windows 11 replace KB5016691. Any more, should you request compression over SMB, we’ll try and compress the file no matter its dimension or seeming suitability for compression. It would not matter the way you request compression – robocopy, share setting, registry values – we’ll attempt to compress the file.
Microsoft has additionally added a brand new set of Group Coverage, PowerShell and registry choices to regulate the legacy behaviors which keep away from modifying the registry by hand for configuring consumer compression. Extra particulars can be found within the weblog put up.