Olympus has released firmware version 1.6 today.
You can update your firmware on Olympus cameras and lenses by using the Olympus Digital Camera Updater. The updater also works on Panasonic lenses when connected using an Olympus body.
Version 1.6 updates:
- The highlight and shadow control function was modified so the exposure settings are applied correctly at ISO 2000 or higher.
- The issue that occasionally prevented operations during long exposures was resolved.