This file is a historic note, applicable only to dist.apache.org and not
the archive. Original text as below:


The Python bindings for proton-c are published at PyPi, and in order to
allow a seemless install, a system was added such that if the relevant
proton-c version couldnt be located on the system already then the setup
would implicitly compile and install a local version for use.

Unfortunately, when this functionality was added in earlier releases,
reference was made to http://www.apache.org/dist/qpid/proton/ to download
the matching release archive for installation.

When these older releases are removed from there, it will break things for 
projects using the bindings from PyPi (or elsewhere) in their existing
release versions should they actually be relying on the implicit proton-c
install functionality.

The 0.15.0 package at PyPi instead gets the files via the GitHub mirror for
the source repo, rather than the apache.org/dist site. 

This issue was addressed in proton-0.16.0 via
https://issues.apache.org/jira/browse/PROTON-1330, to distribute the needed
C files within the generated python binding source bundle. The intention is
to clear out the older releases over time, as other projects use of them
phases out, and hopefully avoid/minimise significant disruption to other
projects and end users.