Download zsh source

You can either download the zsh source from one of the mirrors or from Sourceforge.

Download zsh 5.9 from Sourceforge (-doc contains the documentation/man pages):

As xzed tar archive: zsh-5.9.tar.xz (3.2MiB, gpg signature), zsh-5.9-doc.tar.xz (3.1MiB, gpg signature)

All files are signed with the following OpenPGP keys:

pub   2048R/4BDB27B3 2015-11-25
      Key fingerprint = F7B2 754C 7DE2 8309 1466  1F0E A71D 9A9D 4BDB 27B3
uid                  Peter Stephenson <p.w.stephenson@ntlworld.com>
sub   2048R/4C58D718 2015-11-25

pub   rsa3072 2013-06-11 [SC] [expires: …]
      E96646BE08C0AF0AA0F90788A5FEEE3AC7937444
uid                      Daniel Shahaf <danielsh@apache.org>
uid                      Daniel Shahaf <d.s@daniel.shahaf.name>
sub   rsa3072 2013-06-11 [E] [expires: …]
sub   rsa4032 2017-06-28 [S] [expires: …]

pub   rsa2048 2019-01-02 [SC]
      7CA7ECAAF06216B90F894146ACF8146CAE8CBBC4
uid                      dana <dana@dana.is>
sub   rsa2048 2019-01-02 [E]

Older releases can be downloaded from the zsh downloads on Sourceforge.