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Configuration Manager current branch 2509 available as baseline
With the latest update to Configuration Manager (CM) current branch (version 2509) we’ve finally received new baseline version we can use for new site deployments. Previous baseline version is 2403 and was supported until 22nd of October, 2025. If we had any new site deployments in the last month or two, we had to go first through the deployment of an unsupported product and later on update it to the supported version (2409 and/or 2503). Since CM evaluation links are not yet updated with new baseline version, we still have to do this type of double deployment for evaluation deployments (if we want to use up-to-date systems). The same applies as well to the Windows 11 and Microsoft 365 Deployment Lab Kit download – it was updated in November 2025 with Windows 11 25H2 images, but the Configuration Manager current branch version preinstalled is as of this writing still at version 2403.
Version 2509 is currently available as an in-console update to those that are already running Configuration Manager current branch in their environment. If not, we can find baseline media on the Volume License Service Center or on Microsoft Visual Studio Download center.
General enhancements in version 2509:
- version 2509 of Configuration Manager focuses on security and quality updates (KB35877153)
- Windows 11 25H2 support
- Boot images can be automatically updated to use latest Windows Boot Loader (signed with Windows UEFI CA 2023) – only works on WDS-Less PXE-enabled Distribution Points
- Service Connection Tool improvements (better logging and error handling)
- minimum SQL 2016 or later version
- more info available at: What’s new in version 2509
More information about Configuration Manager versions, support end dates, baselines, hotfixes and more, we can find at Updates and servicing for Configuration Manager.
25th Sinergija conference in Belgrade, Serbia
During the last week of November 2025 I attended Sinergija, Southeast Europe’s premier business and technology conference. This year Sinergija had already it’s 25th anniversary and was running on November 26-27 at Belgrade’s SAVA CENTAR. The event, themed “Let’s AI!”, focused on artificial intelligence, cloud technologies, and digital transformation.
It was my pleasure to be chosen as one of the speakers. Although my presentation was in the last time slot on day two, I still had a nice big group joining me. I was presenting one of the few infrastructure related topics: Advanced usage of Azure Virtual Desktop.
If you are interested in what I was talking about, you can find my slides below.
Big thank you to the Sinergija team, speakers, partners and all the attendees that joined to make this conference a success.
Going down the IT rabbit hole 