Here are all the Failing tests in Pharo4, with a link to the issue tracker. We should try to get it green, not much left to do: Related to NativeBoost: ââââââââââââ ReleaseTest>>#testMethodsWithUnboundGlobals https://pharo.fogbugz.com/f/cases/13982 <https://pharo.fogbugz.com/f/cases/13982> AJx64AssemblerTests>>#testStringOps64Mnemonics https://pharo.fogbugz.com/f/cases/14033 <https://pharo.fogbugz.com/f/cases/14033> Related to GT: âââââââ ReleaseTest>>#testUndeclared https://pharo.fogbugz.com/f/cases/14168 <https://pharo.fogbugz.com/f/cases/14168> ClassTest>>#testClassRespectsPolymorphismWithTrait https://pharo.fogbugz.com/f/cases/14172 <https://pharo.fogbugz.com/f/cases/14172> ReleaseTest ââââââââ ObsoleteTest>>#testFixObsoleteSharedPools https://pharo.fogbugz.com/f/cases/14165 <https://pharo.fogbugz.com/f/cases/14165>