Can functional level 2016 be used in production ?

Klaas TJEBBES via samba <[email protected]> Thu, 21 May 2026 17:32:49 +0200
Newsgroups gmane.network.samba.general
Message-ID <ea842909-09ae-44cb-bf48-2a0fcdb6ddc3@region-academique-bourgogne-franche-comte.fr>
Hello.

This wiki page 
https://wiki.samba.org/index.php/Setting_up_Samba_as_an_Active_Directory_Domain_Controller

states :
"""
Starting with Samba version 4.19, Samba supports setting a higher 
functional level. This is still a work in progress so it should not be 
used in a production environment. For more information, see the Samba 
4.19.0 release notes.
"""

But the current version of Samba is "4.24.2".

So my question is : can Samba functional level 2016 be used in 
production today with more recent versions than 4.19.0 ?

If "yes", since which version has it become stable ?


On a test server, I've tried this :
in "smb.conf" "[global]" section, add :
  "ad dc functional level = 2016"

Then run :
systemctl restart samba-ad-dc
samba-tool domain schemaupgrade --schema=2019
samba-tool domain functionalprep --function-level=2016
samba-tool domain level raise --domain-level=2016 --forest-level=2016



Thank you,
Klaas



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