See what you've been missing See how Adobe® Photoshop® Lightroom® 4 software compares to previous versions.	Lightroom 2	Lightroom 3	Lightroom 4
Get everything you need beyond the camera
Location-based photo organization
Importing libraries from other software
Extended video support
Basic support for video files
Improved watermarking
Cross-platform 64-bit support
Multiple monitor support
Offline photo management
Batch application of Develop settings
Adobe Photoshop integration
Develop presets
Tools to manage and refine many images at once
Comprehensive image management
DNG conversion
Single or group metadata stamping
File renaming
Advanced search and sort
Simple, customized keywording
IPTC/EXIF/XMP metadata support
Timesaving presets for import/export
Metadata stamp on import
Get the best from every image
Highlight and shadow recovery
White balance brush
Additional adjustment brush options
Advanced noise reduction
Film grain simulation
Lens correction
Perspective correction
Selective editing brush
Nondestructive environment
Superior image processing
Tracking of editing adjustments
Before-and-after comparison
Advanced black-and-white conversion
Simplified tone curve tools
Advanced hue, saturation, and luminance editing
Intelligent sharpening
Dust-busting
Red-eye removal
Share effortlessly
Photo book creation
Video publishing
Soft-proofing
Direct email support
Enhanced online sharing integration
Improved customizable print packages
Portable, easy-to-share video slide shows
Flexible online publishing directly from Lightroom
Integration with Flickr®, a Yahoo! service
HTML or Adobe Flash® Player compatible web gallery output
One-click publishing to your website