Re: [PATCH v4 0/5] drop support for ancient curl

From: Junio C Hamano <gitster@pobox.com>
Date: Jul 30, 2021, 19:50 UTC
Message-ID: <xmqqy29nzila.fsf@gitster.g>
In-Reply-To: <xmqq7dh71v5g.fsf@gitster.g>

Junio C Hamano <gitster@pobox.com> writes:

Show 12 quoted lines

>>     +    The documentation[2] currently claims that it was introduced in
>>     +    7.16.4, but the symbols-in-versions file correctly states
>>     +    7.17.0[3].
>>     +
>>     +    I've submitted an upstream
>>     +    patch (<patch-1.1-953bab490-20210730T170510Z-avarab@gmail.com>) to the
>>     +    curl-library mailing list fix the documentation.
>
> I am not sure how to get to the patch, but I suspect you might be
> misreading "up to X", which is different from "before X".  Once cURL
> mailing list confirms my suspicion, we would need to come back and
> update this patch again.

Ah, I found it at https://curl.se/mail/lib-2021-07/0058.html

Nobody seems to have responded yet, but I do think you are misreading what "X was known under a different name Y up to 7.16.4" means. These places do not say "before 7.16.4", which would have implied that as of 7.16.4 you would be able to use X (not Y).

But because "up to" is "less than or equal to but not more than" (e.g https://dictionary.cambridge.org/us/dictionary/english/up-to), what applies to 7.16.3 also applies to 7.16.4, but not to 7.17.0. IOW, the feature X was known as Y when 7.16.4 was current, so our use of X would not have worked with that exact version. We would have needed to wait until the next version (7.17.0).