Backdrop 1.0 - released June 29, 2003

• First release.

Backdrop 1.1 - released July 16, 2004

• Floating Level. Option to place the window behind the desktop icons.

Backdrop 1.3 - released January 21, 2005

• Multiple Display Support. Backdrop will now appear on all screens available when launched.
• Picture Options. New controls to stretch to fill the screen, tile, or center an image.
• Auto Update Option. Preference to stop the automatic check for new versions.

Backdrop 1.3.1 - released January 22, 2005

• Multiple Display Support. Backdrop will now appear on all screens available when launched.
• Picture Options. New controls to stretch to fill the screen, tile, or center an image.
• Auto Update Option. Preference to stop the automatic check for new versions.
• Bug Fix. Fixed an issue with reading preferences from Backdrop 1.2

Backdrop 1.4 - released February 19, 2006

• Universal Binary (native support for PowerPC and Intel Macs)
• Option to clear a background image
• Pixel Test (red, green, blue, white, black)

Backdrop 1.5 - released June 06, 2008

• Added a real full-screen pixel test mode (white, red, green, blue, black)
• Fixed the "image stretch" mode
• Improved the auto-update check behavior to avoid an endless loop