unattended upgrade. what is it?

[pingball57]

Hi Serban, thanks for responding. It's fairly old. 10yrs+ at a guess. It's my emergency back up. This is from system info :

-Version-
Kernel : Linux 4.4.0-160-generic (x86_64)
Compiled : #188-Ubuntu SMP Wed Aug 14 04:21:43 UTC 2019
C Library : Unknown
Default C Compiler : GNU C Compiler version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.11)
Distribution : Linux Lite 3.4
-Current Session-
Computer Name : jpa-SATELLITE-C850D-11Q
User Name : jpa (JPA)
Home Directory : /home/jpa
Desktop Environment : XFCE 4
-Misc-
Uptime : 9 minutes
Load Average : 0.16, 0.61, 0.48

-Processors-
AMD E1-1200 APU with Radeon™ HD Graphics : 777.00MHz
AMD E1-1200 APU with Radeon™ HD Graphics : 777.00MHz
[dual core]

If LL3.8 is dead LL3.4 is deader. This may explain why my other HP laptop is also up the swanny as that too is on LL 3.4 & went U/S right after running install updates. Had had no previous problems with this though.

As to why still on 3.4? simply wasn't aware that not upgrading to a later version would create problems. Is this unattended upgrade actually trying upgrade to a later version?