For those who are interested, the download links for 4.3.8945 are:
Mark 3
http://download.kobobooks.com/firmwa...e-4.3.8945.zip
Mark 4
http://download.kobobooks.com/firmwa...e-4.3.8945.zip
Mark 5
http://download.kobobooks.com/firmwa...e-4.3.8945.zip
Mark 6
http://download.kobobooks.com/firmwa...e-4.3.8945.zip
And for those who use the nightmode patch from this link:
https://github.com/gtalusan/kobo-nig...r/KoboRoot.tgz, it still works on this release (tested on Aura using light switch or brightness level to toggle, Aura One using editing nightmode.ini to toggle).