Both stable and testing branches have been updated recently. What's new in Siena 0.9.5:
Fixed all the bugs we have found in 0.9.4 during a month.
Improvements in SEF URLs, i18n, JS/CSS consolidation.
Performance has been optimized so that Siena is now faster than Genoa.
A lot more, see full list on Download page.
Genoa 0.6.20 just reverts page_text field back to non-mandatory status and... brings CoTemplate 2.6.3 from Siena branch. Enjoy!
Plugin conversion campaign results are now available.
As Siena is now just a few releases from stable 1.0.0, the big announcement of 1.x to 2.0 Roadmap is expected soon. Stay tuned!