v4.6.2 [Aug 19, 2009]
This is a maintenance release that features some minor bug fixes (access violation error reading location 0xyyyyyyy)
v4.5 [Mar 30, 2008]
Parser engine that supports Javascript driven websites.
Improved thread controller improves stability and minimizes usage of system resources.
Can be used with sites that require web form login.
Manual login and session interception for complex and non-standard web forms.
Ability to work with sites protected with image verification tests (CAPTCHA).
Support for proxies that require authorization.
Project Organizer with grouping and sorting.
New, human-readable, format of project files.
Downloaded files organizer fully customizable, including URL rewriter.
Sequence media files downloading.
Cookies and private data kept separately for improved privacy.
High performance links queue.
New keyword and media size filtering options.
v3.5 [Jun 7, 2004]
Complete list of changes is available at http://pictureripper.com/changelog.htm