Bump minimum needed R version to 4.3

[IndrajeetPatil]

{estimability} is a runtime or hard dependency of {emmeans}, which needs R 4.3.

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This means that anyone on R < 4.3 system can't actually install {emmeans}. But this is not reflected in the minimum needed R version specified in DESCRIPTION:

https://github.com/rvlenth/emmeans/blob/420328de19d9916135ed84b64b7ee5252e2a50ec/DESCRIPTION#L17

[rvlenth]

You're right, of course. The dependency bump in estimability is because in R version 4.3, responsibile estimability checking was FINALLY added the predict.lm. That kind of obviates the need for estimability::epredict().

I hadn't thought carefully about the effect of this on emmeans, and I'd be inclined -- if possible -- to try to put through an update of estimability that does not require as high an R version. I have to look carefully to ensure that estimability will actually work with lower R versions, rather than bumping up the requirements for emmeans. I'll let you know soon.

[IndrajeetPatil]

Softening the required R version to 4.1, if possible, would be an even better solution!

Thanks a lot.

[rvlenth]

The updated estimability 5.1 was just submitted to CRAN. Or you can install it from GitHub.

[IndrajeetPatil]

Thanks for quickly resolving this!

[rvlenth]

Thanks for calling it to my attention. This put some serious constraints on any other package depending on estimability.