We noted in our OpenCalais 4.1 press release that version 4.2 would follow swiftly, and here it is!  The upgrade, which began rolling out yesterday, is automatically available to all OpenCalais users - with no changes required on your part..

As Tom noted in his original 4.1 blog post, the 4.2 improvements include:

New Granularity in News Categories (4.2)

We’ve added a number of additional news categories. Our news topic categorization capabilities have been expanded and now map quite closely to 17 top levels of the IPTC Newscodes.

OpenCalais entidad extracción en español (4.2)

OpenCalais now supports entity extraction in Spanish. The detailed list of supported entity types are covered in the release notes.

Linked Data Breadth, Depth and Access (4.2)

We’ve significantly upgraded the Linked Data URIs for Company and the content is refreshed more frequently.

If you’re investigating Linked Data – particularly around Companies – you’ll find the changes especially useful. With one call to OpenCalais and a few HTTP fetches you can build a complete picture of a company, its industry, its competitors, its location and many other items.

We’re also exposing our Linked Data endpoints in a new format: JSON. In addition to HTML and RDF you can now retrieve companies, geographies and any other Linked Data URI as JSON by appending .json to the URI or calling us with an appropriate caller type.