IBM® Rational® Developer for i, V9.5.1 delivers the following significant new capabilities:

• Support for Apple Mac OS X operating system
• Support for ILE RPG O-Spec in the dynamic outline view
• F1 language-sensitive help that is enabled for SQL in ILE RPG
• Kerberos authentication for IBM i connections
• IFS project support by using Remote Reconciler with IFS remote contexts
• ILE RPG editing improvements
• New version of Access Client Solutions with Visual Explain
• Block commenting actions in the editor for CL

Find out more here.