Google App Engine Blog: App Engine 1.6.0 Out of Preview Release: "Production Changes
For billing enabled apps, we are offering two more scheduler controls and some additional changes:
Min Idle Instances: You can now adjust the minimum number of Idle Instances for your application, from 1 to 100. Users who had previously signed up for “Always On” can now set the number of idle instances for their applications using this setting.
Max Pending Latency: For applications that care about user facing latency, this slider allows you to set a limit to the amount of time a request spends in the pending queue before starting up a new instance.
Blobstore API: You can now use the Blobstore API without signing up for billing."
'via Blog this'
