Firmware links:
FE 24-105mm F4 G OSS (Ver.02): https://bit.ly/3WKfmdo
FE 200-600mm F5.6-6.3 G OSS (Ver.02): https://bit.ly/3UGoBd3
FE 70-200mm F2.8 GM OSS II (Ver.02): https://bit.ly/3DRetqW
FE 100-400mm F4.5-5.6 GM OSS (Ver.03): https://bit.ly/3TbLl3v