In the last builds of Pharo8, CatalogBrowser comes with an easily fixable glitch... Please could someone take a look? My humble suggestion is: =============================================================== createRepositoryURLtoNameMappings    "Return a mapping between repositories URLs and their user names"    <script: 'self createRepositoryURLtoNameMappings inspect'>    |repos|    repos := Dictionary new.      3 to: SystemVersion current major do: [:v |       repos             at: ('http://smalltalkhub.com/mc/Pharo/MetaRepoForPharo{1}0/main' format: (Array with: v))          put: ('Pharo{1}.0' format: (Array with: v)].    repos at: 'http://www.squeaksource.com/MetacelloRepository' put: 'Unsorted'.         ^repos ================================================================ Best wishes, Casimiro Barreto