[Bug web/109355] New: Add a text warning to old gcc online manual stating it is out of date

[jg at jguk dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109355

            Bug ID: 109355
           Summary: Add a text warning to old gcc online manual stating it
                    is out of date
           Product: gcc
           Version: 13.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: web
          Assignee: unassigned at gcc dot gnu.org
          Reporter: jg at jguk dot org
  Target Milestone: ---

Could old GCC documentation release HTML web pages have a text warning at the
top making it clear the documentation is out of date?

ie:

"Warning: This GCC manual is not the latest online documentation <link>"

eg searching for "gcc function attributes error" gives me:

https://gcc.gnu.org/onlinedocs/gcc-4.7.2/gcc/Function-Attributes.html

I noticed popular search engines often suggest out of date GCC docs, eg this
one from 2012.

So I manually browse to
https://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html

Which is fine, I just find it myself, but it would be nice if there was a
reminder at the top of each page, in case someone doesn't check the URL.