RBrowserHistory out of date?

Anyone have a fix for this?

I've gotten very used to RBrowserHistory in VW 7.6, but it doesn't work
in my 7.9 image. From the public repository I loaded:
     RBrowserHistory(7.7.1,karsten)

Then opening an RB gives:
Unhandled exception: Message not understood: #forEnvironment:dispatcher:
Refactory.Browser.BrowserNavigator class(Object)>>doesNotUnderstand:
Refactory.Browser.RefactoringBrowser(Refactory.Browser.AbstractRefactoringBrowser)>>environment:

Refactory.Browser.RefactoringBrowser(Refactory.Browser.AbstractRefactoringBrowser)>>initializeOnEnvironment:

Refactory.Browser.RefactoringBrowser>>initializeOnEnvironment:
Refactory.Browser.RefactoringBrowser
class(Refactory.Browser.AbstractRefactoringBrowser class)>>onEnvironment:
Refactory.Browser.RefactoringBrowser
class(Refactory.Browser.AbstractRefactoringBrowser
class)>>openOnEnvironment:state:hierarchy:
Refactory.Browser.RefactoringBrowser
class(Refactory.Browser.AbstractRefactoringBrowser
class)>>openOnEnvironment:
Refactory.Browser.RefactoringBrowser
class(Refactory.Browser.AbstractRefactoringBrowser class)>>open
optimized [] in VisualLauncher>>openApplicationForClassNamed:withSelector:
VisualLauncher>>applicationForClassNamed:do:
VisualLauncher>>openApplicationForClassNamed:withSelector:
VisualLauncher>>openApplicationForClassNamed:
VisualLauncher>>browseSystem

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