Not sure if I'm missing something simple but I'm trying to Netinstall my RB4011 and on another RB4011 I have it says it uses firmware al2 but this architecture doesn't appear on Mikrotik's website? Anyone able to let me know what I'm missing please? If it helps the revision on this router (that I don't need to netinstall) is r2.

just in case

dont try to netinstall with a version below factory version, some recent rb4011 comes with v7.x

I was going to install with the latest on Mikrotik's website anyway so should be ok. Any idea what the AL2 firmware is though and/or where I can get it from?

i think for rb4011 you must use ARM architecture package

i understand your confusion, model labels were removed from download page

https://mikrotik.com/download

Ok no problem I can give it a go. I know the Architecture is ARM but the firmware type definitely shows as al2. Weird.

My RB4011 is showing the same firmware type (so nothing to be worried about I think).

The firmware type is not the same as the architecture. You need to check under Resources to see the architecture.

I know, that's my point. But still no one has told me what AL2 firmware is and where to get it?

AL2 refers to the SOC, which in RB4011's case is AL21400 by Annapurna Labs.
On a CCR10xx for example the firmware type is tilegx - which refers to TILE-Gx SOC by Tilera.

There is no firmware to download separately.

The RouterBOOT firmware has been merged into the RouterOS packages for years now.

When you install a newer RouterOS version, if there are changes to the RouterBOOT firmware, it will automatically get installed.
Keep in mind that you have to manually hit upgrade on System > RouterBOARD menu and then reboot, in order to actually update the RouterBOOT firmware.

https://help.mikrotik.com/docs/display/ROS/RouterBOOT