September 2006 Sandcastle CTP is now available at Microsoft download center. Here is a summary of what's new in this CTP version:

Note: We are providing VS 2005 transforms under Presentation/VS2005 folder and the transforms shipped with the previous versions under Presentation/Prototype folder. For building VS2005 format please use sandcastle.config file from C:\Program Files\Sandcastle\Presentation\vs2005\Configuration folder as it uses shared content from C:\Program Files\Sandcastle\Presentation\vs2005\Content and transforms from C:\Program Files\Sandcastle\Presentation\vs2005\Transforms

Known issues:

1. State of syntax tab do not persist across topics in CHM build. We will provide a hot fix for CHM after the release of September CTP.
2. In C:\Program Files\Sandcastle\Presentation\vs2005 folder please modify the following:
1. Edit CopyHavana.bat and change the path Prototype to vs2005.
2. Edit test.hhp under C:\Program Files\Sandcastle\Presentation\vs2005\Chm folder and change the value icons to art.
3. Edit test.hxf under C:\Program Files\Sandcastle\Presentation\vs2005\Hxs folder and changes icons to art.
3. See Also section not generated for builds with VS 2005 look and feel. Please remove the xml comments for the following section in main_sandcastle.xsl for VS 2005 transforms under C:\Program Files\Sandcastle\Presentation\vs2005\Transforms:

<!-- see also -->
    <!--<xsl:call-template name="seeAlsoSection" />-->

Bug Fixes:

The following bugs have been fixed for this CTP:

1. Sandcastle transforms does not process all XML elements from code comments
2. MrefBuilder: Display friendly log message when "comments" are missing in config file
3. Bugs in documenting lists
4. F-keywords are not generated by the HxS
5. Exception tag from XML comments are not being populated in .chm file
6. Lists are not documented properly
7. Buildassembler generates indexoutofrangeexception
8. Visaul bug for R:Project
9. August CTP and Inherited Interface Implementations
10. Overloads do not display properly in Contents-tab
11. August CTP: Problem with attributed fields
12. Mrefbuilder crash on several VS dlls
13. Syntax tab selection does not persist across topics
14. Issues with localized XML files
15. HHC file name not supported with extended characters
16. C++ set methods for properties are still documented with an extra comma.
17. The <seealso> tag seems to work just like the <see> tag.
18. The parameters just look like an empty constructor in the HTML
19. August CTP : <c> tag not working
20. Attributes on methods
21. Aug CTP: <seealso> tag not working
22. Generic types are not displayed in method declaration
23. Return-only generic type parameter not listed in doc
24. Where clause not part of the doc

Cheers

Anand..