After 18 months of hard work, here's the highlights you can expect from v4:
- Developers: Support for ASP.NET Master Pages, Membership & Role Providers, AJAX, any .NET language. Event Model, Documented API and full source code available
- Designers: Built on W3C Standards, Accessibility Section 508 compliant, a template engine yet complete design freedom and support for RIA-powered websites based on Flash or Silverlight.
- End Users: New, easy to use interface, MS Word integration, Media Library, Content Versioning and Scheduling, Notifications and Tracking, built-in translation management, multi-lingual and supports all major browsers.
Remember, the upgrade is supposed to be painless, unless you have a few features implemented such as the XSLT helper method RenderTemplate(), UltraSimpleMailer / Newsletter and 3rd party datatypes.
And for those German-speaking fans, there is now a sister site to Umbraco.org: Umbraco.de which contains a mirror of the important parts of the Umbraco.org site.
You can get the new release on codeplex now.