The Oracle Solaris Binary Application Guarantee is now covering Oracle Solaris 10 as well as 11. Oracle extended the program through 2013. The program covers a source code guarantee as well as a binary guarantee. Details can be found in the program description.

Solaris 11 is public available and the IPS package management is setting new standards in Solaris administration and version management.

Everyone who develops software for this platform will want to make sure that the application users are using the optimal Solaris 11 infrastructure. The Oracle binary guarantee warrants that an application will work on any Solaris 11 release no matter which minor revision the kernel has. It's however  a reasonable idea to ask a user to be at same minimum patch level you qualified your application on.

Update

The original page is outdated. Oracle released Solaris 11. It is available through the Oracle download pages.

The early adopter release shouldn't be used anymore. It can't meet the qualitity standards of a servicable main stream OS version.

Original Content

Oracle is getting closer to the release of Solaris 11.

Oracle posted a new page with Solaris 10 features which will not be part of Solaris 11.

Solaris developers shouldn't use these frameworks if they want their application to work smoothly with Solaris 11. The list consists of archaic commands, drivers, features and legacy hardware which shouldn't be used in any application developed in the last 10 years. It's unlikely that it'll have impact on existing applications.

 The industry interest to get applications work on Solaris is growing  a lot lately.

Quite a number of people start discussing the Solaris 11 Compability Checker: