Version 6.27 software?

Where can we download version 6.27 software for several of our PPC and Mipsbe devices?

http://download2.mikrotik.com/routeros/6.27/routeros-mipsbe-6.27.npk
http://download2.mikrotik.com/routeros/6.27/routeros-powerpc-6.27.npk

Yay for sensible/predictable URLs!

is it free to download?

Yes it is. If you have a routerboard device with a valid licence you can upgrade freely.

Thanks!