An update:
I'm on the 4.15.0-66 kernel for a couple of days without problems:
```
$ uname -a
Linux ... 4.15.0-66-generic #75-Ubuntu SMP Tue Oct 1 05:24:09 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
$ uptime
12:29:13 up 3 days, 2:26, 20 users, load average: 2.34, 1.42, 1.46
```
An update:
I'm on the 4.15.0-66 kernel for a couple of days without problems:
```
$ uname -a
Linux ... 4.15.0-66-generic #75-Ubuntu SMP Tue Oct 1 05:24:09 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
$ uptime
12:29:13 up 3 days, 2:26, 20 users, load average: 2.34, 1.42, 1.46
```