The Upload tool is a direct component of Galaxy. To use an earlier version of the tool, I believe that you would have to run an earlier version of Galaxy. 

Others here can amend this, if they know of an alternative. 



Jennifer Hillman-Jackson
Galaxy Application Support

On Fri, Feb 26, 2016 at 4:01 AM, Makis Ladoukakis <makis4ever@hotmail.com> wrote:
Hello everyone,

I was wondering whether it's possible to downgrade the upload tool to the previous version(1.1.4).

I copied the upload.py and upload.xml scripts from a previous galaxy version to the tools/data_source/ directory and reloaded the tool as admin but it hasn't changed even when I restarted the server.

Do I have to change something else in addition?

Thank you,

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