Jenkins - What's the difference between lastFailedBuild vs lastUnstableBuild vs lastUnSuccessfulBuild?

Question

What's the difference between lastFailedBuild vs lastUnstableBuild vs lastUnSuccessfulBuild in Jenkins?

Answer 1

To boil it down from the Jenkins terminology page which is not very clear.

lastFailedBuild - last time/link that compilation failed during the build, see below.

lastUnstableBuild - last time/link that tests failed during the build, see below.

lastUnsuccessfulBuild - ambiguous, see below.

Note: plugins can change the build states as well.

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Unstable build - A build is unstable if it was built successfully and one or more publishers report it unstable. For example if the JUnit publisher is configured and a test fails then the build will be marked unstable.

Broken/Failed build - Build that failed during compilation.

Unsuccessful Build - Amibiguous, could mean both unstable and failed or just one of those.

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Update: Jenkins now defines a new set of terminology which fails to mention any of these.