New Daisy feature: point in time

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We are currently working on an exciting new Daisy feature we call the "point in time" feature. The use case is simple: If you want to find out what content was live on your website on a given point in time,

you can check the document's versions page and have a look at each version.  This is good, but it can be even better:
the historic version of your document is still displayed in the current context.  This means that

1. The navigation tree is based on your current set of documents
2. Queries and includes on the document are executed against the current set of documents.

This gives a sort of skewed perspective, because you might rightfully expect the historic version to be rendered exactly like it was on the moment it was created, naivgation tree and surrounding context included.

So the PIT feature will allow you to do just that: search and publish document versions applicable for a given point in time.

This video demonstrates how the query language already supports the point in time feature. It goes a bit quick so here's what happens:

• First, a document with three versions is created (with different content so we can easily identify them)
• Next, we look up the exact timestamps on which these versions
• Finally we execute some queries to demonstrate that you can get the contents for each version using these timestamps.

The PIT feature is being developed in collaboration with Atos-Origin France for an important legal documentation project for the French government. Using PIT, tax payers (and their lawyers) will be able to find out what precise legislation was applicable during a specific period.