Objective Development has released LaunchBar 5.3, offering improved compatibility with OS X 10.8 Mountain Lion (including compliance with the Gatekeeper security feature). The update improves access to 1Password bookmarks, tags, and folders (which may require a new 1Password indexing rule), adds Growl notifications for new events and reminders, makes a distinction between reminders and calendar items, speeds up the sending of files or text to contacts from your address book, and now indicates whether an application’s recent documents list is located in iCloud. LaunchBar offers built-in support for Apple Mail, Mailplane, Microsoft Outlook, Postbox, and Sparrow, and your default email client can either be chosen automatically or selected manually in LaunchBar’s preferences. On the fix front, LaunchBar 5.3 addresses issues related to indexing applications via Spotlight and indexing contacts in Mountain Lion, plus it now displays phone numbers labeled as “iPhone” as a mobile number. ($35 new with a 20-percent discount for TidBITS members, free update, 2.3 MB, release notes)