Yeastar P-Series Cloud Edition 84.21.0.117 (Beta 2)

Release date:January 22, 2026

Release type:Beta Release

This topic introduces the bug fixes included in the second beta release of firmware 84.21.0.117.

  • To try out the new updates, download the beta firmware from PBX web portal and upgrade your phone system.
  • If you found something that doesn't work as expected, you can submit feedback directly from here .

Bug fix

Compatibility issue
Fixed the compatibility issue between PBX and Linkus Mobile Client: When used with PBX running firmware 84.21.0.117-beta1, the Linkus Mobile Client would fail on all outgoing calls if users logged in using a domain name that did not end with .com.
Note: To ensure optimal compatibility, user should also upgrade their Linkus Mobile Client to the following versions:
  • Linkus iOS Client: 5.22.19 or later
  • Linkus Android Client: 5.22.12 or later