> > What is a "2025 Feature"?
>From the page "This table shows the minimum engine version required to read Parquet files using features introduced in each year.", maybe we should clarify this is to the specification? Why does Arrow C++ not support "2025 > Features"? If you hold your mouse over the "x" it shows what is missing, in this case variant. I'll update the docs to make this clearer. In any case, this does not seem to be solving the problem of "as a user, > how do I enable features safely". Can you elaborate? Every feature listed after 2023, hass the year it was introduced in parenthesis next to it. I think this in addition to the table showing the version that everything was supported in, can give a user a pretty good idea of what might be safe There could probably be some more pivots added to show things in more detail but each feature in the detailed breakdown also show the released version of the software that supported it. Cheers, Micah On Wed, Jun 10, 2026 at 5:57 AM Antoine Pitrou <[email protected]> wrote: > > Le 10/06/2026 à 13:14, Andrew Lamb a écrit : > > > The problem I think we're trying to solve is to make it easier and > safer > >> for users to enable modern features that produce more optimized and more > >> efficient Parquet files. > > > > I agree > > > >> I agree with the "non-trivial consensus" problem, and that's the point > >> of calendar-based presets: they eschew the need for "non-trivial > >> consensus" as they are based on actual adoption. :-) > > > > To be clear I am not opposed to presets (or some other schemes to make > > adoption clearer) > > > > In fact, as perhaps you are hinting at, the implementation status page[1] > > already has a table with yearly adoption ("Minimum Version for Read > Support > > by Year"). Perhaps that is enough > > I don't understand what this table means or how it's supposed to be > utilized. What is a "2025 Feature"? Why does Arrow C++ not support "2025 > Features"? > > In any case, this does not seem to be solving the problem of "as a user, > how do I enable features safely". > > Regards > > Antoine. > > >
