[Pharo-users] Pharo 6 FileSystem>>changeDirectory: is missing

I found FileSystem class has changed from Pharo 5 to Pharo 6. I've been using FileSystem>>changeDirectory to make my program (Pharo 5) runs in the current working directory (thus able to find local files). This is now broken because #changeDirectory doesn't exist anymore. The change seems intentional. Question: Is there a different way in Pharo 6 do set working directory or is this a bug? -- Andreas