Support older Julia versions?

[lassepe]

The main thing that stops me from adopting this package is that I don't want to force all my users to upgrade Julia 1.10. As I understand it, dropping support for older Julia versions would be considered a breaking change. I see no fundamental reason why this package would require 1.10 --- package extensions could be used in a backward compatible way.

[gdalle]

This was discussed in #40 (comment) and @ChrisRackauckas suggested we drop Julia versions below 1.10. On second thought, if this is a real pain point for users, I guess there is not much harm in adding back support all the way down to 1.6

[gdalle]

After some more discussion, older versions will not be supported, not with a v1.10 LTS around the corner

[lassepe]

Okay, sounds good! Also good to know that 1.10 will be the new LTS :)