I can't Google App Enginering my blog

A long time ago before Google launched Google Cloud Platform, I played with App Engine and Django. Despite of the fact you must swith from Django usual tools (Celery or ORM) to Google services like Memcache or Task Queue, I was seduced by their fast deployment system.

A standard Django app is fastly adaptable to App Engine, a simple app.yaml and I'm getting started to use my webapp. Google tries to hide every Ops work with all their differents services:

• Front End: Edge of an App, it uses Google's datacenters to handle requests and cache response closest to users
• App Engine: Scalable middleware and load balancer between statics and application instances
• Datastore: Read-only highly scalable SQL-Like database
• Task Queue: Asynchronous tasks and cron tabs
• Cloud storage: Object storage
• More and more

Nowadays, I tried to deploy my blog in Google App Engine but:

$ appcfg.py -A myblog-123 update myblog
Usage: appcfg.py [options] update  | [file, ...]

appcfg.py: error: Error parsing myblog/app.yaml: django version "1.8" is not supported, use one of: "1.2", "1.3", "1.4", "1.5" or "latest" ("latest" recommended for development only)
  in "myblog/app.yaml", line 18, column 1.

They stopped at Django 1.5 which has last commit on November 2014. Really really scary... Maybe we could say they left for dead App Engine