Jenkins Upgrade Installation Constraints and Risks

[Nia Hunter]

Good morning, I have two basic questions. I am not sure if this is the correct group for these questions, if not please let me know where to pose these questions.

We are using Jenkins as a stand-alone application on our UNIX server.

1. Other than Java 7 and above, are there any System Requirements or Environmental constraints associated with upgrading from a much older version of Jenkins to the latest? For example, we are using Version 1.423 and would like to go to at least Version 1.638, but preferably the latest. Is there a patch required when doing an upgrade from such an old version?

2. Are there any general risks associated with upgrading from an older version to a newer version?

Thanks!

[Baptiste Mathus]

Hi,

Basically, yes, there are obviously many risks doing a fast-forward of almost 5 years, maybe even more with a project as active as Jenkins :).

BUT, depending on your environment (how many jobs, nodes, exotic configs, unmaintained/custom plugins...), this may not be a so big issue in the end. 

The upgrade should still be pretty automatic if you're a bit lucky. 

No specific patch or something should be required off the top of my head.

What you want to do is to replicate your whole current install the new target server, and just try upgrading. You'll see how it goes. Crawl the archive here about how to move a server onto another machine about that (basically, rsync should almost always be sufficient from my experience).

When you have done that, and have found specific issues, don't hesitate to come back here to ask for help/advice.

HTH

-- Cheers

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[Nia Hunter]

Thank you this has been most helpful and I will be sure to come back with any questions if I encounter any issues! 

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[Mark Waite]

Since you spent a long time on a single version, you should probably upgrade to a long term support version (currently 1.642.1) rather than to a weekly version.  LTS versions have additional testing and tend to be supported longer (though none of them are supported for 5 years).

Mark Waite

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[Nia Hunter]

Noted! Thanks!!! 

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