At the end of the year we will release 3.0 which will have some major architectural enhancements.

Physical condition is another: where does cleaning end and major cosmetic enhancement begin?

No major enhancements were introduced, except a streamlined CD install process.

From that article, the major enhancements for this revision include:

Specialization in medicine has been one of the major enhancements in patient care over the last generation.

This version is backward compatible with 1.1 and the major enhancements include the following:

Version 2.0 released in 2000 provided major and minor enhancements to all products in the Intercept product line.

The game includes a major enhancement in the save system from the previous installment.

Other major enhancements in Windows 98 involve system-level software for particular kinds of hardware.

In fact, the cave recently reopened after major enhancements that include an exterior scenic glass lift back up to the entrance.