In reply to Margaret.

Hi Margaret,

Thanks for your question! The best way to learn the differences between SAS versions is to check out our "What's New" sections.

http://support.sas.com/documentation/whatsnew/index.html

Typically, if a function has changed between versions, it's because new options have been added. You can view the documentation at each version of SAS to learn all the options available to you.

Please contact SAS Technical Support if you run into an issue that you can't find in the above documentation.

Here's a nice paper that describes SAS warnings and SAS errors.

http://www2.sas.com/proceedings/sugi22/BEGTUTOR/PAPER68.PDF

Thank you so much!

Wendy