Announcing Safe Updates

If there’s one thing I really hate doing, it’s updates. It’s important to keep everything up to date, but it also eats up a lot of your time: if the update itself does not fail, you still need to make sure the website did not break in so many wonderful ways. So for the past several months we’ve been working on a better way to update WordPress websites. We call it Safe Updates. Right now, the update process is straightforward: you see an update, you click it, wait for it to finish, and then check the website to confirm that everything is OK. If you’re using ManageWP, you get a few benefits of having all updates on one screen, seeing which versions have a known vulnerability, plus you’ve got backups in case something goes wrong. But this is not enough.
Safe Updates is a new take on the core, plugin & theme update process. Here’s how it works:
Create a restore point: if something goes wrong, you can roll back the update
Send an HTTP request to the website: if it’s not 200 OK, we stop the process
Grab a “before” home page screenshot: we can later compare it with the after screenshot to spot inconsistencies
Update plugin/theme/core
Source: https://managewp.org/articles/14827/announcing-safe-updates

source https://williechiu40.wordpress.com/2017/04/10/announcing-safe-updates/