Shredder Alpha 1 is a developer preview release for the next
major version of Thunderbird.
This next Thunderbird version is called Mozilla's layout engine,
Gecko 1.9. Shredder Alpha 1. It is being made available for testing
purposes only and is intended for developers and our testing community.
This release does not represent the final product. Some of the
features listed below are highly experimental and will likely change
before the final
release. They may come with crashes and bugs and may potentially
cause data loss in profiles (configuration data, preferences,
downloaded mail).
Further Reading:
http://www.mozillamessaging.com/en-US/thunderbird/3.0a1/releasenotes/
-> URL: http://releases.mozilla.org/pub/mozilla.org/thunderbird/releases/3.0a1/contrib/thunderbird-3.0a1.en-US.os2.zip
Source: OS2.org