Libfredo6 Old Version
Is the old LibFredo6 better? No. It is slower, incompatible with modern OS security, and lacks the incredible new "Bezier Spline" tools.
But is it interesting? Absolutely. It represents an era of SketchUp where plugin developers were wizards writing spells in Notepad++, and users were pirates sailing the seas of ZIP files.
The old LibFredo6 isn't just a library; it is a museum exhibit of how parametric modeling worked before the suits showed up.
Pro Tip: If you still have a LibFredo6_v6.0.rb file on a USB stick somewhere, don't throw it away. Mount it on a virtual machine running Windows 7 and SketchUp 2015. You’ll be the only person on earth who can edit that specific historic file without breaking the normals.
Do you still use an old version? Let the forum know—but prepare for the "Update your library!" pitchforks.
LibFredo6 is a shared plugin library specifically for SketchUp extensions developed by
. It is not a standalone tool; rather, it provides essential background functions like language translation, default parameters, and update checks for popular extensions such as RoundCorner JointPushPull Why Use an Old Version?
The primary reason to use an "old" or "legacy" version of LibFredo6 is for compatibility with SketchUp versions prior to 2017
. Since version 10.0, the regular LibFredo6 builds are only maintained for SU2017 and above. Key Legacy Versions LibFredo6 v9.5k
: This is the designated archived "Legacy" version for SketchUp users running Pre-8, v2013, v2014, v2015, or v2016
. It was last updated in March 2021 to ensure stability for these older environments. LibFredo6 v5.4b
: An older iteration often cited in legacy tutorials for very early versions of SketchUp plugins. LibFredo6 v3.0
: Historically significant as the first version to transition from a single Ruby file into a formal library structure (2008). Feature Differences Modern Versions (v10+) Legacy Versions (v9.5k and below) SketchUp Support SU2017 to SU2026+ SU5 to SU2016
Integrates with SketchUcation's licensing system for paid plugins
Generally supports older free versions of plugins; newer paid features may not be available. Update Check Built-in "Check for Updates" tool
in legacy versions because development has ceased for old SketchUp builds. High DPI Support Automatic for SU2017+
Manual scale factor settings required in versions like SU2016. Installation for Older SketchUp To install a legacy version of LibFredo6:
LibFredo6 is a shared library of scripts used by almost all plugins created by the developer Fredo6 for SketchUp. Because modern versions of LibFredo6 are optimized for newer SketchUp releases (2017 and later), users on older systems often need specific legacy versions to maintain compatibility. Essential Legacy Version: LibFredo6 v9.5k
The most critical "old version" is LibFredo6 v9.5k, which is specifically archived for users running SketchUp versions prior to SU2017 (e.g., SU8, 2013, 2014, 2015, and 2016).
Primary Source: You can find the archived Prior2017 LibFredo6 v9.5k on the SketchUcation PluginStore.
Dependency: This version is required to run legacy versions of other Fredo6 tools like FredoTools v3.8c. Why Use an Older Version?
System Compatibility: Older LibFredo6 versions may be more compliant with legacy hardware or operating systems that cannot support the latest SketchUp API.
Avoiding Load Errors: Installing a modern LibFredo6 on an old version of SketchUp (like SU2015) often results in Ruby console errors and prevents the plugins from appearing in the menu. Libfredo6 Old Version
Workflow Preservation: If you are working on a machine that cannot be upgraded, using the archived versions ensures your existing toolkit (RoundCorner, FredoScale, etc.) remains functional. Common Issues & Tips
Cleaning Old Files: If you encounter errors after trying to update, check your Plugins folder for obsolete files like Traductor.rb, which are no longer used in newer versions but can cause conflicts if left behind.
Retina Support: In older versions, a "Retina" option exists to double the size of graphical drawings, though it does not affect font size due to limitations in the older SketchUp Ruby API.
File Format: Note that while the library handles plugin functions, the models themselves (.skp) from newer SketchUp versions may still require a converter or a "Save As" to an older version to be opened.
If you'd like to troubleshoot a specific error, let me know: Which version of SketchUp are you using? What operating system (Windows/Mac) are you on?
What is the exact error message appearing in your Ruby Console?
[Plugin Library] LibFredo6 - v15.9a - 25 Mar 26 - sketchucation
So the Retina option of LibFredo6 is simply there to double the size of the graphical drawing, not more. There is a discussion SketchUcation
SU2017 New Install with Load Errors on Plugins - Page 4 - SketchUp
LibFredo6 is a shared plugin library required to run most extensions developed by Fredo6 for SketchUp, such as RoundCorner, Curviloft, and JointPushPull. It is not a standalone tool but rather a core component that provides common functions like language translation and trace logging to other plugins.
Older versions of LibFredo6 are typically needed for users running legacy versions of SketchUp (specifically those prior to SU2017). Legacy Versions for Pre-2017 SketchUp
If you are using SketchUp 2016 or earlier, newer versions of LibFredo6 will not be compatible. You must use the archived legacy versions:
LibFredo6 Legacy (v9.5k): This is the final archived version specifically for SketchUp versions Pre-8 through SU2016.
Download: Available via the Prior2017 LibFredo6 Archive on SketchUcation.
Note: Automatic update checks are disabled in these legacy versions to prevent incompatibility issues with newer frameworks. Current Version (SU2017 and Newer)
For users on SketchUp 2017 through 2026, you should always use the most recent release to ensure compatibility and access to bug fixes. Latest Version: v15.9b (as of April 2026). Download: Can be found at the LibFredo6 PluginStore Page. Key Installation Steps
[Plugin Library] LibFredo6 - v15.9b - 21 Apr 26 | sketchucation
LibFredo6 is a shared plugin library required by nearly all extensions developed by Fredo6 for SketchUp. While the latest version supports newer SketchUp releases (v2017 to v2026), users of older software often need a specific "LibFredo6 Old Version" to maintain compatibility. Why You Need a LibFredo6 Old Version
Modern versions of LibFredo6 (v10.0 and above) are exclusively maintained for SketchUp 2017 and later. If you are running a legacy version of SketchUp, such as SU2016, SU8, or even older, you must use a "frozen" legacy version of the library to ensure your tools function correctly. Essential Legacy Version: v9.5k
The primary "old version" for legacy users is LibFredo6 v9.5k. This version is the final update for users on older frameworks and is archived specifically for compatibility with: SketchUp 2016 and below SketchUp 2013, 2014, 2015 Pre-8 versions Where to Download Old Versions
Official downloads for legacy versions are hosted on SketchUcation, the primary repository for Fredo6's work. Archived v9.5k: Available on the Prior2017 LibFredo6 page.
Legacy Bundle: Users on older systems should search for the "Prior_2017" keyword in the SketchUcation PluginStore to find compatible versions of accompanying tools like RoundCorner or JointPushPull. Installation Guide for Older SketchUp Versions Is the old LibFredo6 better
Installing an old version of LibFredo6 follows a slightly different path depending on your SketchUp version: LibFredo6 - SketchUp Extension Warehouse
Once upon a time in the digital architecture world of SketchUp, there was a legendary "key" known as LibFredo6. It wasn't a tool you used to draw walls or roofs yourself, but a master library that whispered instructions to all the other great tools—like RoundCorner, Curviloft, and FredoScale.
For years, architects and designers lived in harmony, using these tools to bend and curve their models into shapes the original software never dreamed of. But as time marched on, the software evolved. SketchUp grew newer and faster, and LibFredo6 had to change with it.
Eventually, the modern versions of LibFredo6 became incompatible with the older spirits of the past—specifically those using SketchUp 2016 and older. Users who refused to leave their trusty old workstations found themselves locked out. Their favorite plugins stopped speaking the old language, and the "Update" buttons only led to errors.
To save these digital relics, an "Ancient Tome" was archived: LibFredo6 Version 9.5k. This specific version became a hero for those stuck in time. It was the last of its kind, built to support the legacy versions of SketchUp (v8 through 2016) while ensuring the classic tools still functioned in their original environment.
Today, the story of LibFredo6 Old Version is one of preservation. While the rest of the world moves toward 2026 and beyond, this version remains a steady bridge for anyone needing to open an old project or work on a vintage machine, proving that in the world of design, the past is never truly gone as long as you have the right library. Quick Guide for Travelers of the Past:
The "Old Reliable" Version: v9.5k is the standard archive for SketchUp 2016 and older.
Where to find it: It is kept safely in the SketchUcation PluginStore under the "Prior2017" archive.
Installation: In the old days, you’d install it manually via the Windows > Preferences > Extensions menu.
Are you trying to get a specific Fredo6 tool (like RoundCorner or Curviloft) to work on an older version of SketchUp? Fredo6 plugins - LEGACY versions prior SU2017 - Extensions
LibFredo6 is a foundational shared library required for nearly all SketchUp extensions developed by Fredo6, such as Curviloft, RoundCorner, and JointPushPull. While the latest version is optimized for modern SketchUp releases, many users actively seek a LibFredo6 old version to maintain compatibility with legacy software. Why You Might Need a LibFredo6 Old Version
The primary reason for seeking older versions is the shift in SketchUp’s framework. Starting with LibFredo6 v10.0, the library only supports SketchUp 2017 and newer.
If you are using a legacy version of SketchUp, you may require specific older builds:
SketchUp 2016 and earlier: These versions are no longer supported by modern LibFredo6 updates.
Hardware Limitations: Older versions of the library are sometimes preferred for high-resolution screen adjustments in SketchUp 2016, where manual scaling (often a factor of 2) is required.
Compatibility with Legacy Plugins: Some older, unmaintained plugins may only function with the specific library environment provided by earlier LibFredo6 builds. Where to Safely Download Old Versions
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
Finding older versions of LibFredo6 is typically necessary for users running legacy versions of SketchUp (specifically versions prior to 2017) or for those troubleshooting compatibility issues with older Fredo6 plugins. Essential Legacy Version: LibFredo6 v9.5k
The most critical "old version" is LibFredo6 v9.5k. This is the final archived version specifically maintained for users on SketchUp versions prior to SU2017.
Compatibility: Supports SketchUp versions up to and including SU2016.
Key Restriction: It is not compatible with SketchUp 2017 or later.
Feature Changes: In these legacy versions, the "Check Plugins for Update" functionality is disabled to prevent accidental updates to incompatible modern versions. Do you still use an old version
Where to Find: You can download this archived version from the SketchUcation PluginStore. Other Notable Older Releases
For specific troubleshooting, historical versions are often referenced on the SketchUcation Community forums:
v5.2: Introduced compatibility for new naming conventions for plugins like Curviloft.
v8.3a - v8.4c: Major releases that added support for Animator 2.0 and 2.1. v8.6c: Fixed orbiting bugs in FredoCorner.
v12.5: The baseline version for compatibility with SketchUp 2017. Why You Might Need an Older Version
Legacy OS/SketchUp: If you are using an older operating system or a version of SketchUp like SU8, modern LibFredo6 versions (which now support SU2017+) will likely fail to load.
Plugin Requirements: Some specific older versions of plugins (e.g., Curviloft or FredoScale) may explicitly require a certain minimum version of LibFredo6 that is still older than the current latest release.
Stability: If a recent update causes your SketchUp to crash or slow down during startup, rolling back to a slightly older stable release can be a temporary fix. How to Install Libfredo6 Fredo_scale (outdated signature) - SketchUp Forum
The LibFredo6 library is a fundamental shared library required for the functionality of various plugins developed by Fredo6 for Trimble SketchUp, such as FredoScale, Curviloft, and RoundCorner
. When navigating older workflows or maintaining legacy workstations—specifically those using SketchUp versions prior to 2017—utilizing an old or "legacy" version of LibFredo6 (often v9.5k or earlier) is necessary to ensure compatibility and prevent application crashes. The Role of Legacy LibFredo6
For users on SketchUp 2016 or earlier, modern versions of LibFredo6 will not function. The legacy version (specifically LibFredo6 v9.5k) acts as a bridge, allowing older plugins to function within older Ruby environments. Using an incorrect, newer version of LibFredo6 on an older SketchUp version will typically result in "Error Loading File" messages upon startup. Key Considerations for Older Versions Targeted Compatibility:
Legacy LibFredo6 is designed for SketchUp 2016 and older. It should not be installed on SU2017 or later. Archive Version:
The version "LibFredo6 - level 9.5k - 20 Mar 20" is frequently cited as the standard legacy version for these older environments. Plugin Conflicts:
Older plugins like RoundCorner (e.g., 3.3a), TopoShaper (e.g., 2.8c), and FredoTools (e.g., 3.8c) require these corresponding legacy library files to operate without errors. Troubleshooting and Installation
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:
Install the legacy RBZ file via the SketchUp Extension Manager. Handling Errors: If errors persist, they may stem from a corrupted PrivatePreferences.json file or improper folder structure.
In summary, an old version of LibFredo6 is a crucial, specific-use tool for maintaining a stable, older SketchUp modeling environment, ensuring that powerful tools like FredoScale remain operational without requiring an expensive, modern software upgrade. Errors on starting sketchup 2017 - Extensions
The primary "feature" of an old version of LibFredo6 is backward compatibility.
LibFredo6 is a widely used scripting library for FreeCAD that provides utilities to simplify and extend macro and workbench development. The "old version" typically refers to legacy releases before major API reorganizations; it was commonly bundled with or required by community workbenches to offer helper functions, GUI widgets, file IO utilities, geometric helpers, and compatibility wrappers across FreeCAD versions.
Most users search for a Libfredo6 old version for three specific reasons:
SketchUcation’s Plugin Store uses a versioning system. While the main page shows the latest release, you can request specific versions.