WordPress 5.5 is currently slated to bring some long awaited updates to a handful of external libraries bundled with Core. A few of the updates are particularly large, and while backwards compatibility measures were taken, they could potentially require adjustments to plugins, themes, and custom code. For that reason, this developer note also doubles as a call for testing.
Please help test these library updates, and report back any bugs to help ensure that no edge cases were missed during the initial testing.
You can test these changes by installing the WordPress Beta Tester plugin (choose the “bleeding edge nightlies”
