Lukas’ instructions of how to upgrade your Pier image from version 1.0.17 to 1.1:

1. Save the image under a new name, just to be sure.
2. Disable an existing persistency strategy
   • through the webinterface, or
   • by executing: aKernel persistency: PRNullPersistency new
3. Load the latest code of Magritte-Model, Magritte-Seaside and other Magritte packages you might have present in your image using Monticello.
4. Load the latest code of Pier-Model, Pier-Seaside and other Pier packages you might have present in your image using Monticello.
5. Re-enable the persistency:
   • through the webinterface, or
   • by executing: aKernel persistency: PRImagePersistency new