How to check for packages updates without actually installing them

Hi, currently I am using the Pkg.update() to check for available packages updates. However, Pkg.update() also automatically install the missing updates. Is there a way to check for package updates without installing them?

] preview up (untested, but should work)

Thank you for sharing, this feature could be very useful.

Unfortunately, while it works using Julia 1.3.1 or 1.0.5,
it gives the following error with the current version 1.4.2:
ERROR: Could not determine command
(My OS is 64-bit Windows 7.)

Please, could anyone confirm this behaviour?
.

Preview is deleted.. The suggestion seems to be to update and use undo to get back to the previous state.

Thank you very much for the useful info.