As of 03 Jul 2023, the kirkstone-l4t-r32.7.x and dunfell branches support L4T R32.7.4/JetPack 4.6.4.

Changes from L4T R32.7.3/JetPack 4.6.3

NVIDIA documentation:

• L4T R32.7.4 page
• JetPack release page

Content for this release is identical to L4T R32.7.3/JetPack 4.6.3, with the following updates:

• Security fixes: NVIDIA security bulletin
• Kernel update to v4.9.337 base (the last 4.9 LTS kernel release)
• Minor updates to Jetson Multimedia API