No Sencha Cmd available to be used with nightly build

I'm a paying customer that have access to nightly build, but Sencha Cmd that is compatible is not available. I'm expecting nightly build of Sencha Cmd to be also available from the Support portal.

PS C:\Projects\platformscExtJS5\app> sencha app upgrade C:\Users\stardif\Downloads\ext-5.1.0-20141125\ext-5.1.0.47

Sencha Cmd v5.0.3.324

[INF] Loading configuration for framework directory: C:\Users\stardif\Downloads\ext-5.1.0-20141125\ext-5.1.0.47

[ERR] Sencha Cmd version (5.0.3.324) is incompatible with required version (5.1.0.13-5.1.0.13)

No Sencha Cmd available to be used with nightly build