Yes, it's a source control tool. Smalltalk doesn't store source code in text files, so you can't really use tools like git or svn to version Smalltalk. Monticel

Yes, it's a source control tool. Smalltalk doesn't store source code in text files, so you can't really use tools like git or svn to version Smalltalk. Monticello is a DVCS written specifically for versioning Smalltalk code.