Looks like a good update and some changes to get ready for Mountain Lion.

Get it at Stairways

Changes for 5.1

• Added For Each action allowing looping over a variety of collections.
• Added Developer ID Signing for Mountain Lion Gatekeeper.
• Added Percent Encode for URL filter (Clipboard & Variable).
• Added text token processing to button names in Prompt For User Input.
• Added text token processing to Open URL and Search & Replace actions.
• Changed the way String Mathching/Reg Ex menus are named.
• Changed icon for Display Text and Mouse actions.
• Disable changes to the Global Macro Group which were not allowed anyway.
• Fixed case correct Insert Text by Typing in applications like Screen Sharing.
• Fixed a crash that could happen if a text factory no longer exists.
• Fixed lock up when entering quoted strings in calculations.
• Remember the location of the Recording window (again!).
• Made yet more changes to the HID code to try to handle the system crash.
• Extended DisableAnimation to include the macro palette.
• Left justified the text in the text display window.