The primary "feature" of an old version of LibFredo6 is backward compatibility.
Open the Ruby Console (Window > Ruby Console) immediately after installation.
Now, open your dependent plugin (e.g., RoundCorner). If no red text appears, you have succeeded. Libfredo6 Old Version
If you want to experiment, you are looking for specific digital fingerprints:
In the world of 3D modeling, software updates are a double-edged sword. For SketchUp users, the name Fredo6 is legendary. His library, LibFredo6, is the engine behind titans like FredoScale, RoundCorner, and Curviloft. The primary "feature" of an old version of
But while the crowd chases the latest release (now integrated with the SketchUp 2024 ecosystem and the new "SketchUp Store"), a quiet, stubborn community of power users refuses to let go of the Old Version—specifically LibFredo6 v6.0 to v7.0.
Why would anyone cling to "obsolete" code? Because sometimes, the ghost in the old machine works better than the shiny new robot. Now, open your dependent plugin (e
This is the most practical section. Below is a compatibility matrix based on community testing.
| Libfredo6 Version | Best for SketchUp Version | Compatible With (Examples) | Notes | | :--- | :--- | :--- | :--- | | v6.2 | SketchUp 2015 – 2016 | Curviloft 1.7, JointPushPull 2.x | Last version without the modern UI (Report Browser). | | v8.5a | SketchUp 2017 – 2019 | FredoTools 3.3a, RoundCorner 2.0 | The "Workhorse" – Most stable for pre-2020 workflows. | | v10.7 | SketchUp 2020 – 2021 | FredoScale 3.0, TopoShaper 2.0 | Introduces dark mode compatibility. | | v12.0c | SketchUp 2022 – 2023 | All Fredo6 plugins up to 2024 | Fixed a major memory leak from v11. | | v13.0+ | SketchUp 2024+ | Only the latest plugin versions | Warning: Do not use v13+ with plugins last updated in 2020. |
Pro Tip: If you don’t know which version you need, start with v8.5a. It is the most backward-compatible release that still runs on modern hardware.