Old versions of the documentation are no longer served at docs.sympy.org

[Aaron Meurer]

I have removed all old versions of the documentation from
docs.sympy.org. docs.sympy.org now only serves the documentation for
the latest release and the development version, and will serve only
those two going forward. Links with old versions now redirect to the
latest docs (this only works if the page still exists in the latest
docs, otherwise it will give a 404).

If you want to access old versions of the documentation, I recommend
downloading the respective zip file from
https://github.com/sympy/sympy/releases. However be aware that the
SymPy development community generally does not support versions older
than the latest (currently 1.5.1).

Note that the mpmath documentation, which used to be served as part of
some old SymPy versions' docs, can be found at
http://mpmath.org/doc/current/index.html

Aaron Meurer

[Jason Moore]

Is there an issue or email thread regarding the decision to do this? I'd like to read the reasoning.

Thanks,

Jason

moorepants.info
+01 530-601-9791

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[Oscar Benjamin]

You can see some of the discussion here:
https://github.com/sympy/sympy_doc/pull/33#issuecomment-580970009

I think the original discussion was on the mailing list...

> To view this discussion on the web visit https://groups.google.com/d/msgid/sympy/CAP7f1AjJG-_0Z-1sK1tCyAtLGq5CPq1wFv%3DDxDqBy53y2%2BN57Q%40mail.gmail.com.

[Aaron Meurer]

Here is an older discussion, where it was decided to use some tricks
to try to get Google to stop returning the old results
https://groups.google.com/forum/#!msg/sympy/arUgORYqZlc/_LEdQdLyAAAJ.
Here is a newer thread, where it is clear that that didn't work, and
Google was continuing to do that anyway
https://groups.google.com/forum/#!msg/sympy/5SWhrGTmZKw/uD6nH8xLBAAJ.
There's also some discussion on the PR Oscar linked to.

The crux is that Google was giving a lot of search results for old
versions of the documentation. This is the case for a lot of pages,
but particularly bad are older versions that used to include the
mpmath documentation. I've seen the fact that there is mpmath
documentation on the SymPy docs page confuse people on StackOverflow
and elsewhere multiple times.

Aaron Meurer

> To view this discussion on the web visit https://groups.google.com/d/msgid/sympy/CAHVvXxQhwrUyxpTPBBZcKu8BHS8Fxw7-u6pe_CEK%2ByeE0Dd92A%40mail.gmail.com.