Hightide 6.1H.6 is available for download from the Webtide website here:
http://www.webtide.com/downloads.jsp
The changes in this release include:
- jetty 6.1.6
- atomikos version updated to 3.2.1
- dwr updated to 2.0.2
- debian packaging
The Hightide wiki has more information, along with instructions on how to install the debian packages.