Hi Paul,
Hope you are doing great today! Thanks for taking the time to reach out to us.
I would be glad to answer all your queries.
We have more than 500,000 sites using our software, and a small mistake can break connections between servers.
That’s why we keep the current stable version which is secure and try the other release in waves (releasing to a bunch of users) to make sure it’s not breaking anything.
Once we made sure that our released version is bug-free, we will push the IWP client update to the plugin repository.
Now, please follow the instructions below and update the IWP Client Plugin to the latest version on all your sites.
Go to Plugins install page
Select All Websites you have
Check the two options are marked on the image
Use this URL https://s3.amazonaws.com/iwp-client/iwp-client_v1.8.3.zip
Click install button
Note: You can follow the same procedure in future by only changing the version number.