Moment-timezone version which you use:

Version: 0.5.40

Issue description:

I just spent a lot of time investigating why suddenly DST were not applied anymore in 2023, but still worked in the prior years (including, but not limited to digging through the IANA changelog).

I included this file years ago, and I wasn't even aware anymore that there's such a thing as a limited dataset. I now replaced it with moment-timezone-with-data-10-year-range, which should be future-proof.

Ideally, there would be a way to raise an error, but I get that backwards compatibility concerns make that impossible. But maybe it's possible to at least log a big warning in case this outdated dataset is used?