# z/OS Integrated Development Environment (zIDE)

zIDE provides new functions in Rational Developer for System z 7.5.1.

The following topics describe new, enhanced, or altered functions of zIDE. Updates to existing functions are indicated by highlighted text.
Note: The topics in this section include updates to the zIDE helps. Because these release notes include only the helps that describe updates for Rational Developer for System z 7.5.1, some links to related topics may not work.

- Creating a connection using client certificate authentication
- Editing and resubmitting jobs
- Comparing remote files
- z/OS Solutions preferences (The Show warning message for save in compare editor preference has been removed.)
- Viewing and working with generation data groups
- Working with property group overrides

The following additional restrictions or limitations apply:

- The Rename action is disabled for projects.
- In the z/OS Projects view, when a data set in a subproject is a generation data set and an operation changes it to a non-generation data set, the data set will be removed from the subproject. The reverse is true as well: if an operation changes a non-generation data set to a generation data set in a subproject, it will be removed form the subproject. Such actions include renaming a data set and allocating a data set that exceeds a limit.

- Creating a connection using client certificate authentication
  The Rational Developer for System z remote systems environment supports client certificate authentication for users who need to connect to a remote system using a device such as an integrated circuit card (like Smart Card).
- Editing and resubmitting jobs
  Use the Show JCL action to edit and resubmit the JCL for a specific job ID.
- Comparing remote files
  You can compare two files on a remote system and copy changes between the two files.
- Viewing and working with generation data groups
  You can display and work with generation data groups in the Remote Systems and z/OS Projects views.
- Working with property group overrides
  You can override the values defined in a property group for a specific resource.

Parent topic: IBM Rational Developer for System z Version 7.5.1 Release Notes - Client