Version 6.0 was the peak of this "Wild West" era. It had no requirement for a constant internet connection. It didn't check for updates every five seconds. It simply sat in your Tools menu, silent and powerful.
If the specific sub-version you need is hidden, you can request access to the legacy archive file by posting a polite message in the dedicated Fredo6 support forum thread. Step-by-Step Installation Guide for Older Versions Libfredo6 Old Version
It is critical to avoid unofficial "mirror" sites which may package plugins with malware. The developer has officially archived legacy versions for users of older software. LibFredo6 - SketchUcation Version 6
As Fredo6 himself has noted, he maintains backward compatibility as much as possible, but there are situations where newer libraries require newer plugins. It simply sat in your Tools menu, silent and powerful
If you are using a modern version of SketchUp, you cannot use an old version of LibFredo6. You must update both the library and your plugins to their latest versions. Disappearing Toolbars
When installing old versions, it is critical to follow specific steps to avoid conflicts, particularly on Mac systems where permissions can be strict: Remove Old Files: Close SketchUp and delete existing Fredo6_!LibFredo6 folders and Fredo6_!LibFredo6.rb files from the plugins directory. Clean Installation: