# Two administrator applications

- Pick the client the workstation can actually run.

## Sources and go deeper

- [Technical requirements PDF](https://documentation-be.five9.com/bundle/five9-technical-requirements/raw/resource/enus/five9-technical-requirements.pdf). vendor. last checked 2026-10. Fetched for this lab in October 2026. Re-read before you buy hardware or open a firewall.
- confirm. The fetched PDF names JRE 8 updates 421, 451, and 461, and macOS 15 Sequoia, 26 Tahoe, and 27 Golden Gate. Those lines are time-specific. last checked 2026-10.