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Tycho/Release Notes/0.22

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Tycho 0.22.0 is currently under development. This page shows a preview of features which will be available in the 0.22.0 milestone.


To try out the most recent snapshot build of 0.22.0, simply add the following snippet to your (parent) pom.xml, and set the property for the Tycho version (e.g. tycho-version) to 0.22.0-SNAPSHOT.


SNAPSHOT site docs

Refer to the latest SNAPSHOT site docs for Tycho and Tycho Extras.

New and Noteworthy

Complete list of bug fixes and enhancements in 0.22.0


  • You can now reuse project JDT compiler preferences .settings/org.eclipse.jdt.core.prefs by globally configuring

    e.g. in your parent pom. This will warn but not fail if the preference file is not present. (bug 404633)

Target Platform & Dependency Resolution

  • (INCOMPATIBLE CHANGE) In case you specify multiple execution environment profiles in the Bundle-RequiredExecutionEnvironment manifest header, the profile used for the build may have changed. Tycho no longer attempts to find the "minimal" profile from the ones specified, but now uses the one specified first (bug 435313). See Execution Environments for details on the execution environment configuration and effects in the build.
  • Tycho now supports building bundles for the execution environments JavaSE/compact1-1.8, JavaSE/compact2-1.8, and JavaSE/compact3-1.8.
  • Tycho can now be configured to ignore the execution environment (as per Bundle-RequiredExecutionEnvironment manifest header) of the current bundle when resolving its dependencies (bug 435068) . If you configure

Tycho will use a combination of all known execution environments (providing the superset of all system packages) to resolve the bundle's dependencies.


  • Resources copying and filtering:
    • you can now include additonal resources in p2 repositories such as index.html or about.html in p2 repositories. Just add files to src/main/resources in eclipse-repository modules
    • you can use maven resource filtering for eclipse-plugin resources in src/main/resources. Make sure to configure TODO tycho compiler plugin copyResources=false switch

Test Execution

  • Tycho Surefire was updated to use Maven Surefire version 2.17. This enabled us to consume the fix for long-standing (bug 369266)


  • The embedded OSGi runtime used by Tycho during build has been updated to use Equinox and p2 from the Mars M3 milestone (bug 444112)

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