Where can I get v6.44.6?

Due to the RB4011 is not stable in v6.45 and V6.46, I want to try the long-term v6.44.6.
I had try the official download web page, but always got “404 Not Found”

Try this link: https://download.mikrotik.com/routeros/6.44.6/routeros-arm-6.44.6.npk

https://mikrotik.com/download/archive

The download archive had a problem and it seems to be solved now.