With only a few changes to the release candidate installer, the final 1.0.4 version is available for download:
http://www.radiantviewer.com/startdownload.php?f=setup
New features (since the 0.50 version):
Multiplanar reconstructions.
PET-CT fusion (other types of images can be also fused, e.g. DWI and conventional MRI sequences).
Screen splitting with a predefined column/row number (drag and drop series thumbnail images into viewports).
DICOM tags inspection window.
Angle measurement.
Cobb angle measurement.
Improvements and bug fixes:
The autorun package for CD/DVD contains both 32 and 64 bit versions.
More keyboard shortcuts (series navigation - Home/End, tool selection - C/B/M/W/Z).
Middle mouse button adjusts window level/width.
Auto synchronization on/off switch.
Display cross-reference lines on/off switch.
Ellipse tool shows minimum and maximum values in covered area.
ROIs drawn with an outline for better visibility on brighter backgrounds.
Movable ROI text labels.
More zoom presets added - 200, 400 and 800%.
The installer supports silent setup mode.
Crash reporting tool.
Improved look of certain dialog windows when using non-standard DPI settings.
Support for PALETTE COLOR DICOM images.
Improved support for JPEG DICOM images.
Other minor features and many bug fixes.