Problem

With the recent version v4.5.9, the MSRV for notify-rust has been raised to 1.60 in react to bumping zbus to v3 which requires rust 1.60, but this caused downstream apps to break on older rust version unexpectedly. MSRV should have been in a minor release at least if not major.

Having a MSRV 1.60 also means that you can't submit any app that depends on it to debian store since debian only has 1.59.

What is the solution?

notify-rust should revert the zbus bump, revert the MSRV to the version it was before and release a patch release. If you still want to use zbus@v3 then it should be bumped in a minor release or stay on zbus@v2 until 1.60 is available in debian