Re: What were the Emacs versions with dates limited to 1970 .. 2037 year range?

[Eli Zaretskii <eliz@gnu.org>]

> From: Ihor Radchenko <yantar92@gmail.com>
> Date: Sun, 12 Jun 2022 17:13:25 +0800
> 
> Org mode currently supports an old workaround for 32-bit year range
> limitation:
> 
> org-read-date-force-compatible-dates docstring:
> 
> > Should date/time prompt force dates that are guaranteed to work in Emacs?
> > 
> > Depending on the system Emacs is running on, certain dates cannot
> > be represented with the type used internally to represent time.
> > Dates between 1970-1-1 and 2038-1-1 can always be represented
> > correctly.  Some systems allow for earlier dates, some for later,
> > some for both.  One way to find out is to insert any date into an
> > Org buffer, putting the cursor on the year and hitting S-up and
> > S-down to test the range.
> 
> The workaround has been introduced about 11 years ago.
> 
> Could anyone tell if this issue is still present in Emacs 25 or newer or
> maybe on some OS?

Any 32-bit build of Emacs is potentially prone to this problem,
depending on what time-related APIs it is using.  If time_t is a
32-bit type, this problem will still exist.