Today, as part of their May 10 event, Leica has announced new firmware for the Leica S2, version 18.104.22.168 to add compatibility with the new Leica S-Adapter-H and improve flash synchronization. The press release as follows:
We are pleased to inform you that a new S2 firmware, version 22.214.171.124 will be available for the Leica S2 and Leica S2-P from May 14, 2012. The new S2 firmware will support the new Hasselblad lens adapter, Leica S-Adapter H (catalog # 16030) and improve the flash synchronization with 1/125s focal plane shutter.
All registered S-customers will receive an email about the new firmware. All new Leica S2 and S2-P cameras will now be supplied with the updated firmware.
The new firmware can be downloaded from the Leica S Owner's area on Leica's website as of May 14, 2012.