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Very exciting -- a new major version of Jenkins has been a long time coming.

> "Jenkins 2.0 is a drop-in replacement of the Jenkins 1.x series of releases and fully backward compatible. There is practically no reason not to upgrade once 2.0 is released."

Skeptical, but optimistic about this claim.

I hope that the Jenkins configuration format is something that can be manipulated more easily in the new version.

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I'll believe it when I see it -- the Jenkins ecosystem is one of the worst offenders I've worked in with regards to things getting arbitrarily broken by a point release. I shudder to think what a major release will do.

We look at the list of available plugin updates and cringe. You never know if one plugin update will break something else, and then it's a game of downgrade/upgrade until things mostly work.

I don't update or install plug-ins without doing a taking a snapshot of the Jenkins machine. A new plug-in version may force various other plug-ins to update, and thereby break the many plug-ins that have incomplete dependency specifications.

I also found that downgrade may not fix the problem, as the upgrade may change your configuration files to use newer features, causing Jenkins to choke on them once downgraded.

Jenkins is a spiderweb of plug-ins held together by shoestring. It's a very useful tool, but extremely fragile.

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