Hi, the API of Pragma was changed in quite dangerous way. In past we had: - #selector to access to method selector - #keyword to access to pragma selector now we have: - #methodSelector to access to method selector - #selector to access to pragma selector That means that the meaning of the message #selector was changed and it can cause some problems (like some currently failing tests [1]). The #selector message was deprecated in the middle of the transition process so most of usages should be already rewritten to #methodSelector but we need to be aware of it. [1] https://pharo.fogbugz.com/f/cases/19333/17-more-tests-failing-due-to- MockSettings-class-Object-doesNotUnderstand-mocksystemsettings- SettingTreeBuilder-mocksystemse Cheers -- Pavel