I remember reading about that on the list.On Fri, 18 Apr 2025 at 12:58, Brooks Harris via tz <tz@iana.org> wrote:So seems somebody updated that one from some other source? Such as: https://hpiers.obspm.fr/iers/bul/bulc/ntp/leap-seconds.listYes, tzdata started preferring and pulling directly from IERS in 2024, because (a) NIST was becoming increasingly slow at updating their version, (b) the previously-unclear copyright status of using IERS' files directly was finally resolved,
So this should be made clear to developers and users in the docs somewhere, right?and (c) IERS is the decision-making body for leap seconds, so it makes sense to get it straight from the source.
-- Tim Parenti