Sony has issued new firmware updates for two of its full-frame mirrorless models, the a7S II and the a7 IV. The a7S II receives version 5.01, while the a7 IV is updated to version 6.02. These releases were announced on May 29, 2026, and are now available for download from Sony’s support site.

For the a7S II, firmware 5.01 specifically resolves an issue where a portion of the green frame that indicates autofocus status failed to appear when using the “Extended …” function. The fix ensures that the AF indicator displays correctly, giving users a clearer visual cue during shooting. No other changes were detailed in the summary for this model.

The a7 IV update to version 6.02 is part of Sony’s ongoing maintenance cycle for the camera. While the source did not list specific corrections or enhancements for this firmware, keeping the a7 IV up to date helps maintain compatibility with accessories and supports the camera’s overall stability.

Sony’s a7 series is widely regarded as professional‑grade equipment, known for its advanced autofocus system and high‑performance full‑frame sensors. These technologies enable fast, reliable focus tracking and excellent low‑light capability, which are essential for creators who demand consistent results in both stills and video.

By delivering timely firmware updates, Sony reinforces its commitment to supporting the workflow of photographers and videographers. The a7S II fix improves the user experience by restoring accurate AF feedback, while the a7 IV update ensures the camera remains current with the latest system improvements.

Creators who rely on these bodies for professional work can benefit from installing the latest versions to take advantage of the refinements Sony continues to provide. Keeping firmware up to date is a straightforward way to maintain optimal performance and extend the useful life of the gear.