WordPress.org

The complete changelog back to version 1.0 is in the plugin code. Here's the changelog starting with v2.8 of the plugin:

2.8

• Fixes the "multiple widgets" problem caused by the developers' changes to the API in WP 2.8
• Now includes its own copy of magpie, since WP is moving toward simplepie
• Relies entirely on independent rss caching, not magpie's caching
• REMOVED the ability to call this plugin manually from a template. MUST be used as a widget.

2.8.01

• Minor bugfix. Oops. Saves correctly now.

2.8.02

• Repaired the utf8 option