Had a "firmware update" to install today.....

[RegularJoe]

 and it's   1.090.29.6_47_244fc16

  I updated each of my 6 cameras.

The way I became aware of it was when I went to "restart" one that was acting up, when it started to come back to life, a message appeared on that camera's screen on the phone that said "firmware update available".  So, update I did.

 
After that, I clicked on the "restart' on each one, the message popped up after it restarted... and I clicked on "update". I'm sure there's a simpler, different method of finding this update, but that's how I did it.  

 To find out what version your cameras have, bring up each device's settings, then look at "Device Info"... it's the very top line .... "firmware".

[Dannybear]

It’s sometimes called the Easter egg hunt.

https://kb.arlo.com/4736/How-do-I-update-my-Arlo-firmware-manually