# Service Pack 22.21

## Library compatibility information

Library name | Version | Windows | Linux | OS X | Notes
--- | --- | --- | --- | --- | ---
DGN Direct | 4.2 |  |  |  |
HOOPS Exchange | 2017 SP2 |  |  |  |
HOOPS Publish | 2017 SP2 |  |  |  |
.NET Framework | 4.0 |  |  |  | v4.5 required for wpf_image v4.5 required for WPF over Remote Desktop
Parasolid | 29.1 |  |  |  |
Qt | 5.6 |  |  |  | Please note, Visualize is compatible with Qt 5.4 on OSX
RealDWG | 2018 |  |  |  | RealDWG 2018 requires Visual Studio 2015 Update 3
SketchUp | 2015 |  |  |  |

HOOPS Visualize 22.21 is a bug fix release only.

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