If the maintainers have a good back-porting policy, they'd also put out a new 1.0.X release so that users of <1.1.0 can upgrade and get the fix without also get

If the maintainers have a good back-porting policy, they'd also put out a new 1.0.X release so that users of <1.1.0 can upgrade and get the fix without also getting the new function in 1.1.0. This is something that Apple sometimes does for security updates on macOS: they'll release a new patch version on all supported versions.