This specific update was a "bug-fix" release that improved the program's reliability for power users:
Corrected issues where file extensions were not properly preserved during "Save As" operations. Picasa 3.9.138.150 for Windows
Addressed a flaw that caused video thumbnails to break during the upload process. Compatibility with Windows 10 and 11 This specific update was a "bug-fix" release that
Automatically scans your computer for images and organizes them into folders and albums based on date and metadata. Picasa 3.9.138.150 for Windows