Ao executar a Ajuda > Verifique se há atualizações, o Eclipse encontra a atualização 4.5.2.
Ao atualizar, recebo o seguinte erro:
An error occurred while collecting items to be installed
session context was:(profile=_Users_username_dev_tools_eclipses_eclipse4.5.1.mars_Eclipse.app_Contents_Eclipse, phase=org.eclipse.equinox.internal.p2.engine.phases.Collect, operand=, action=).
No repository found containing: osgi.bundle,com.gradleware.tooling.client,0.12.0.v20160425083245
No repository found containing: osgi.bundle,com.gradleware.tooling.model,0.12.0.v20160425083245
No repository found containing: osgi.bundle,com.gradleware.tooling.utils,0.12.0.v20160425083245
No repository found containing: osgi.bundle,org.eclipse.buildship.branding,1.0.15.v20160425-1638
No repository found containing: osgi.bundle,org.eclipse.buildship.core,1.0.15.v20160425-1638
No repository found containing: osgi.bundle,org.eclipse.buildship.ui,1.0.15.v20160425-1638
No repository found containing: osgi.bundle,org.gradle.toolingapi,2.13.0.v20160425083245
No repository found containing: org.eclipse.update.feature,org.eclipse.buildship,1.0.15.v20160425-1638
No repository found containing: osgi.bundle,org.eclipse.buildship.stsmigration,1.0.15.v20160425-1638
Eu removi o plug-in Gradle da Ajuda > Detalhes da instalação > Software instalado, mas ainda vejo referências de Gradle na Ajuda > Detalhes da instalação > Plug-ins.
Extrato da Ajuda > Detalhes da instalação > Configuração:
com.gradleware.tooling.client (0.6.1.v201509101146) "toolingclient" [Resolved]
com.gradleware.tooling.model (0.6.1.v201509101146) "toolingmodel" [Resolved]
com.gradleware.tooling.utils (0.6.1.v201509101146) "toolingutils" [Resolved]
Isto está no OS X El Capitan 10.11.4