Required: Mac OS X 10.4.11 or higher.

NEW: 'Remove' button added to 'Help > Enter License' panel that removes an existing valid license (e.g. a trial license).
Improved: Support for iChat logs.
Improved: Up to three times faster markup of automatic WikiLinks based on names and/or aliases.
Improved: Inline advertisement filter.
Improved: Support for WebKit of Mac OS X 10.4.11.
Improved: Filtering of invalid URLs, e.g. data: bookmarks of Safari.
Improved: Drags from other applications to delete/remove items isn't accepted anymore.
Improved: Minor interface improvements.
Improved: AppleScript support.
Improved: Slightly faster opening of databases.
Improved: Handling of temporary files while importing or indexing.
Improved: Compatibility to third-party WebKit extensions and hacks.
Improved: Removed last functions deprecated by Mac OS X 10.5.
Fixed: Scrolling position in column views doesn't get lost anymore.
Fixed: Scrolling glitches (Mac OS X 10.5 only).
Fixed: Footers/headers couldn't be disabled while printing web views.
Fixed: Localization glitches.

NEW: Thumbnails in last column of column views have a shadow (Mac OS X 10.5 only).
NEW: .scriptSuite, .scriptTerminology, and .strings files are imported as XML files and are displayed using syntax coloring.
Improved: The next item is automatically selected after classifying a document.
Improved: Web site export creates only one file for multiple identical attachments of a rich text document.
Improved: Web views support command Edit > Find > Scroll to Selection (Mac OS X 10.4.11 or higher).
Improved: Improved retrieval of author from RSS feeds.
Improved: Faster and more reliable thumbnailing of QuickTime movies.
Improved: AppleScript support.
Improved: Minor user interface enhancements.
Improved: Localization.
Improved: Overall performance and reliability.
Fixed: Minor problems with importing or indexing plain text files.
Fixed: Issues of rich text handling (Mac OS X 10.5).
Fixed: Display glitches when switchting from or to PDF or PostScript documents in full screen mode.
Fixed: Glitches in thumbnail scripts.

Spotlight support, Leopard compatibility, bug fixes

NEW: ‘Compress PDF to 96dpi’ sample workflow. Thanks to Robert Black.
NEW: Ruby files (.rb) added to list of known plain text files.
Improved: Support for *.ai files.
Improved: Faster import of HTML/XML files.
Improved: Conversion of RTF documents to HTML pages.
Improved: Reorganized Help menu.
Improved: Handling of MIME types in the Download Manager.
Improved: Script > Execute > Shell/Perl/AppleScript Script can be attached to items.
Improved: AppleScript and Automator support; actions ‘Get Data from Records’ splitted into ‘Get Item from Records’ and ‘Get URL from Records’ (workflows using the old action have to be updated.)
Improved: Memory management.
Fixed: Format > Make Link command more reliably recognizes email addresses.
Fixed: Unicode handling of ‘Scripts > Export > Listing’ script on Intel Macs.
Fixed: Glitches of French localization.
Removed: Menu command Help > Download Tutorial.