This extension was part of Blender 4.1 bundled add-ons. It is now offered as it is, with limited supported.
No changelog for this release.
This extension does not require special permissions.
I almost had a heart attack after trying to find this addon in blender 4.3 and can't find it. It's sad it's no longer build-in add-on inside blender. Good thing it's so easy to install. I use blender as architecture so getting accurate and able to show measurement is so important to me.
Saved me from going insane because blender is only able to show selected edge lengths.