The changes were enough that EllisLab bumped the version a full point release. ExpressionEngine 2.9, available today, includes an overhaul of the conditionals parser.
Conditionals are parsed better, simple vs. advanced conditional is now a thing of the past, and there are some nice new operators; you can do simple math and more robust comparisons.
A few other nuggets:
- The hidden template indicator is now an underscore instead of a period.
- A software license page in the control panel
- Better Markdown support using Markdown Extra (yay Markdown!)
- EE requires PHP 5.3.10 now