In addition to the security update that affects templates, an update for Outlook 2013 was released on August 11 2015. Included in the fixes this month: you can now publish forms to an organizational forms library using Outlook 2013.
Among the other issues fixed this month:
After you click a mailto link in an email message in Outlook 2013, certain characters such as brackets or braces in the email message are not displayed correctly. This issue occurs on the English version of Outlook 2013 on a system locale where text such as Arabic or Hebrew is written as right-to-left.
After you publish a calendar to a WebDAV server in Outlook 2013, you cannot update the publishing options by using the Change Publishing Options function. You'll also receive the following error message: The address you typed is not valid. Check the address, and then try again.
When you open, close, and overlay calendars, Outlook 2013 crashes.
When you receive and then accept a proposal of a new meeting time for a meeting, the meeting time is not updated to the newly proposed time. It remains set to the original time.
When you try to open a shortcut in the navigation pane that is created by using object model solutions in Outlook, you are unable to delete the shortcut and receive the following error message: An OLE registration error occurred. The program is not correctly installed. Run Setup again for the program.
When you right-click and drag an item from a mailbox folder to the Desktop by using the move function in Outlook, the item is copied but not moved.
When you change the format of an email message from rich text to HTML in cached mode then send the email message after editing, the email message is sent as the rich text format, and the editing is lost.
If you reply to a custom form with another custom form and this form does not have a message control, Outlook crashes when you send this email.
When you try to create a new profile in cached mode, you receive the following error message if the .ost file name contains an MS-DOS device driver name: Cannot open your default e-mail folders. Unknown Error. For the list of default device driver names, see the "MORE INFORMATION" section in article KB74496.
When you reply to an email message that is not the latest message in a conversion, a mail tip that resembles the following is not displayed: You are not responding to the latest message in this conversion. Click here to open it. This issue occurs after you apply the February 10, 2015, update for Outlook 2013 (KB2956087).
A password expiration dialog box appears unexpectedly if mailbox users log on to Windows.
Store may be corrupted when items are indexed for search.
For more information, see August 11, 2015, update for Outlook 2013 (KB3055012)