New features

Yes, finally, the first HS 3 beta!

✓ scalability issues have been fixed (The entire rendering process has been rewritten to use the Forms API, which required backporting features available only in Drupal 6. The CSS and JS have been rewritten almost completely as a result of this.)
✓ perfect graceful degradation (Compare JS enabled VS JS disabled. This is actually just a byproduct of the above change.)
✓ ability to create new items in the hierarchy

Other changes:
✓ more granular control over Views exposed filters (for both the Taxonomy and Content Taxonomy implementations)
✓ Hierarchical Select for menu parent selection
✓ enhanced configuration form (more intuitive, and with a preview)
✓ abstracted configuration form, to prevent duplicate form code for multiple modules
✓ overview of all Hierarchical Select form item configuration forms
✓ display number of matching nodes
✓ actual CCK widget for content_taxonomy (already takes advantage of the abstracted configuration form)
✓ Views exposed Taxonomy filters: supporting the **ALL** option
✓ remove dependency on jQuery Interface
✓ if available, use HTML 5 client-side database storage to reduce the number of queries to the server

Pretty much stable. And a pretty interface and animations/effects.

Node previews now possible too! Default setup of content types are fully possible. Note that it has only been tested with Page and Story content types. CCK support not included. For current full support you might want to hack into live.node.inc and the companion JS file.

If you have any concerns about it, feel free to contact me!

Adds working template files for books, movies, software, and other media types, fixes a number of minor bugs, and generally moves us much closer to a final release candidate.

Fixes for http://drupal.org/node/266432 (change module weight on install) and related issues.
Now sets module weight to 5 on install, in order to help ensure that this module is called after others.

The essence of imagefield, condensed in less than 200 lines of code. Requires FileField 6.x-1.0-beta1 or later (or maybe not later but exactly, can't tell for sure yet).

Known issues:
- file preview doesn't work before saving the node when operating with private files
- thousands of nice imagefield features not implemented

Apart from that, I think this module rocks. You should definitely try it out on your development site (but yet keep it far away from anything involving production use).

Very similar to alpha3, only with a bit more polish (style fixes from Coder, E_NOTICE fixes, CSS fixes, potential minor bug fixes) and the return of hook_filefield(), in a different form though. The main feature of this release is therefore feature parity with the Drupal 5 version (disregarding the one or other minor exception), which was my precondition to go from alpha to beta.