Build 21.1.1-26688, released on April 9, 2026, ships two meaningful fixes for Parallels RAS administrators. Here’s what changed.
Keyboard input lost in published applications
Users could lose keyboard input in a published application after switching focus between a local window and the remote session. The root cause was an overly aggressive deactivation logic: if an activation event arrived before the delayed deactivation timer expired, the deactivation still fired and keyboard focus was dropped.
The fix introduces a skip mechanism: if an activation is received before the timer elapses, the deactivation is cancelled. This behavior is opt-in via a new registry key ActivationMode, documented in KB131112. It is not enabled by default — roll it out if your users are reporting this issue.
RAS Watchdog: now registry-configurable
The RAS Watchdog service was previously a black box. This build adds four registry keys to control its behavior:
- InitialTimeToWait — delay before monitoring starts (avoids false positives at boot)
- KeepMonitoring — enables or disables continuous service monitoring
- QuarantineTime — how long a service stays in quarantine before a restart is attempted
- TimeInterval — how frequently service health is checked
On multi-broker or multi-gateway infrastructures, this level of control helps prevent unnecessary restarts while still ensuring fast recovery when a service stops unexpectedly. Full configuration details are available in KB131113.
References
- KB131112 — ActivationMode (keyboard focus fix)
- KB131113 — RAS Watchdog registry keys
- Official RAS v21 Release Notes
