SUMMARY
Panasonic has issued firmware updates for its Lumix S1II, S1RII, S1IIE, and S9 camera lines. While these updates bring welcome improvements, particularly for videographers with new MP4 (Lite) codec options on the S9, the author notes the S9 still lacks the Urban Sports AF algorithm, which debuted in May 2025. The S9 also gains support for the Lumix Flow app and expanded assignable functions for lens buttons. Updates for the S1II series address flash photography latency issues and improve burst shooting performance. Additionally, Lumix Lab software has been updated for easier LUT management.
TAKEAWAYS
Lumix S9 firmware update adds MP4 (Lite) codec options and Lumix Flow app support.
Urban Sports AF algorithm remains unavailable for the Lumix S9.
S1II series firmware improves flash photography responsiveness and burst shooting.
Lumix Lab software now features improved LUT filtering and downloadable packs.