# Appendix

- [Keyboard shortcuts](/version-1.66/nedyx/appendix/keyboard-shortcuts.md)
- [Error handling](/version-1.66/nedyx/appendix/error-handling.md)
- [Feature preview](/version-1.66/nedyx/appendix/feature-preview.md): The feature preview option provides early access to functionality which is not general available.
- [Supported browsers](/version-1.66/nedyx/appendix/supported-browsers.md)
- [Version changes](/version-1.66/nedyx/appendix/version-changes.md)
- [System requirements for on-premises installations](/version-1.66/nedyx/appendix/system-requirements-for-on-premises-installations.md)