Software 
Lion Server: Server Admin does not show second level Open Directory Replicas status
If you are using Relay Open Directory Replicas, you will not see the second level Open Directory Replicas status in Server Admin.
Active Directory user not notified when password does not meet complexity requirements at login window
When an Active Directory user attempts to change their password at the login window, the login window may shake if the new password does not meet the Active Directory password requirements.
Lion Server: Enabling Kerberos authentication for Mail services when connected to an Active Directory server
To allow users from an Active Directory to use Kerberos authentication to mail services provided by Lion Server, you will need to make the following changes.
Lion Server: How to enable webmail for Active Directory users
Learn how to enable webmail for Active Directory users.
OS X Lion: Installer reports “This disk cannot be used to start up your computer”
When installing Lion, you may be presented with a chance to select which disk to target for install. In some situations, the disk you want to upgrade may be labelled "This disk cannot be used to start up your computer".
Server App or Server Admin can’t connect to a new Lion server
In some situations, servermgrd may not start automatically on a newly-installed Lion Server. This can cause the following symptoms: Server App’s login window will shake even though the correct username and password have been entered. Server Admin will show an … Continue reading
Lion Server: AFP users unable to authenticate with Kerberos after upgrading
After upgrading to Lion Server, AFP clients may no longer be able to authenticate via Kerberos. The AFP service may be referencing the LKDC.
iPhoto, Aperture: Previewing an order in iPhoto or Aperture
Apple strongly recommends that you preview book, card, and calendar orders before you submit them for printing. Apple is unable to modify image files after they are received and orders can only be canceled within 90 minutes of order placement.
OS X Lion: About wired and wireless keyboards
Wired and wireless keyboards designed for use with OS X Lion feature Launchpad and Mission Control function keys.
Lion Server: Finder Sidebar may not connect via SMB if the computer’s name contains certain characters
In the Finder, the Sidebar may not let you connect to a shared computer via SMB if the computer’s Bonjour name contains certain characters. This may happen if the computer’s name contains one of these: @ [ . \
