Just got prompted to update my softphone/headset software and it reminded me (to remind all of you) that this is a good example of why it's important to keep all the software on your Windows/Mac box fully updated.
In my case, the Plantronics Hub software is the brains behind my Headset which I use for all things Audio and Mic on my work Mac including Cisco Jabber or Skype, WebEx, Slack calls and a few other apps. It also updates the firmware on my headset and Plantronics Bluetooth headset. So, it's fairly important.
Here are the release notes for the V3.9.4 update.