@e0d @nedbat all hosts may want to change their server configs to the new syntax for the course ids in the mappings config (if they're using the mapping config). Change from
```
MAPPINGS = {
    'edX/simple/2012_Fall': 'xml',
    'edX/toy/2012_Fall': 'xml',
```
to
```
MAPPINGS = {
    'slashes:edX+simple+2012_Fall': 'xml',
    'slashes:edX+toy+2012_Fall': 'xml',
```