Just ran software update and it looks like the 10.5.6 update is now live for Leopard Server.
Mac OS X 10.5.6 Combo Update
Link: http://support.apple.com/downloads/Mac_OS_X_Server_Combo_10_5_6
Size: 883 MB
About the Mac OS X Server 10.5.6 Update
Link: http://support.apple.com/kb/HT3192
Mac OS X 10.5.6 Combo Update
Link: http://support.apple.com/downloads/Mac_OS_X_Server_Combo_10_5_6
Size: 883 MB
About the Mac OS X Server 10.5.6 Update
Link: http://support.apple.com/kb/HT3192
What's included?
File Services
Improves performance and reliability of Apple File Service.
Spotlight provides more reliable results when remote users search a server volume with Spotlight searching enabled. Important: This change takes effect when you enable Spotlight searching on a sharepoint. In order to take advantage of this improvement on a sharepoint where you have already enabled Spotlight searching, disable Spotlight searching, save, re-enable Spotlight searching, and save again. The sharepoint will remain online during this process, but Spotlight searching will be unavailable for a short time while the index is rebuilt.
Fixes an issue that could make NFS exports unavailable at server startup.
Podcast Producer
Podcast Producer now supports Digest-MD5 authentication, for improved compatibility with Active Directory users, and Kerberos authentication for single sign-on.
Note: In order to use Single-Sign On in Podcast Capture, you must explicitly select that Authentication Type option in Preferences. For more information about enabling Single-Sign On for the Podcast service in an Open Directory environment, click here. For more information about enabling and disabling authentication methods on the server, see this article.
Improves reliability of camera connections.
Password Server
Improves performance of Password Server replication.
System Imaging
When deploying a system image created from a volume, the target computers will no longer have identical local KDC files. For more information, see this article.
Added NetBoot/NetInstall model filters for recent MacBook, MacBook Pro, and MacBook Air computers.
Server Admin
Fixes an issue that could cause Server Admin to stop responding when propagating permissions on a folder which is on a volume other than the boot volume.
System Performance and Reliability
Improves overall system reliability.
Improves performance and reliability of TCP connections.
Fixes an issue that could occur when ejecting a volume on a Promise VTrak RAID.
Improves reliability of RAID Utility
Addtional improvements
Improves Mac OS X Server Security. For more information about the security content of Mac OS X Server 10.5.6 see this article.
Mac OS X Server 10.5.6 also includes all other improvements delivered in the Mac OS X 10.5.6 Update (client update).