The new firmware for the Panasonic Lumix DMC-G1 digital camera includes three changes. As previously described, it allows use only of genuine Panasonic-branded batteries in the camera body. The company states that this decision has been made for safety reasons, since third-party batteries may lack some of its own safety features. All third-party batteries are blocked from use regardless of whether they contain the safety features, as the decision on whether to allow a battery to function depends on the presence of a proprietary Panasonic identification chip in the battery. Alongside this change, Lumix G1 owners will find two other updates in the firmware. Both fix potential issues with Olympus-branded lenses on the Panasonic G1 body. One issue corrected was for the Olympus M.Zuiko Digital 17mm f2.8 lens, and the other for the Olympus M.Zuiko Digital ED 14-42mm f3.5-5.6 lens when fully retracted in its barrel.

Panasonic Lumix DMC-GH1 owners get all three of the changes described for the G1 including the third-party battery block, plus a raft of other updates. The Panasonic GH1's burst speed has been increased from three to 3.5 frames per second when burst rate is set to the [H] setting. Focusing stability has been improved both when the Lumix GH1 is recording movies, and when using the continuous AF mode. Auto white balance accuracy has also been tweaked, as has noise in images with slow shutter speeds. Finally, the GH1's Creative Motion Picture mode now allows shutter speeds slower than 1/30 second up to a maximum of 1/2 second, so long as the camera is set to use manual exposure and manual focus and any video mode except for the Full HD mode.

Finally, the new firmware for the H-VS014140 Lumix G Vario HD 14-140mm F4.0 - 5.8 lens corrects two problems. Instability when used with Olympus' E-P1 camera body has been resolved, and the performance of the lens' optical image stabilization during motion picture recording has been improved.

Further information on all the updates can be found on Panasonic's website.