XmlPrime 2.3 released

We're pleased to announce the release of XmlPrime 2.3.

The XmlPrime 2.x series has grown to include XSLT 2.0, XML Inclusion 1.0 (XInclude) and now we have added support for the XQuery Update Facility 1.0.

Download it from here.

You can also download a Visual Studio 2010 solution with code samples.

XmlPrime 2.0 Beta - XSLT 2.0 for the .NET Framework!

The question we get asked most often is: "When will XmlPrime support XSLT 2.0?".

Well, we finally have an answer: Now!

We are pleased to announce the XmlPrime 2.0 Beta Program. XmlPrime 2.0 includes a native XSLT 2.0 processor for the .NET Framework.

You can download a copy of XmlPrime 2.0 beta now to test the new functionality. Please leave any comments on our forum.

We expect the beta program to finish at some point in the next month, at which time we intend to release a fully supported version.

XmlPrime 1.5

Last week we released XmlPrime 1.5.

The main improvement in this version is with the performance of recursive user defined functions.

The biggest improvements are for functions that recurse over a sequence. Consider the following user defined function:

declare function local:product2($seq as xs:decimal*,
                                $product as xs:decimal)
                 as xs:decimal
{
  if (empty($seq))
  then $product
  else local:product2(subsequence($seq,2), $seq[1] * $product)
};

declare function local:product($seq as xs:decimal*)
                 as xs:decimal
{
  local:product($seq, 1)
};

In previous versions of XmlPrime, the subsequence operation would create a closure and each call would have an increasing number of closures to evaluate the argument. In XmlPrime 1.5.0 subsequence operations are treated as a special case and a closure is no longer required. Look out for a future blog post explaining this optimization in more detail, and how to take advantage of it.

The optimizations in this version particularly help computationally-expensive queries - the raytracer sample shows a 20% speed improvement.

As always, there are a large number of other performance improvements and bug fixes so we highly recommend all our users update to this version. For more details as to what has changed in this version, see the changelog.

As always, XmlPrime 1.5 is available to download for free for trial and non-commercial use.

XmlPrime 1.0.2 Released

XmlPrime 1.0.2 is available now

This version fixes some bugs from the initial release.

Here is the full change log

• Set default type checking mode to optimistic, as per documentation.
• Fixed compatibility with XmlDocument
  
  • Fixed NullReferenceException when using data() caused by XmlDocument returning an IXmlSchemaInfo instance with null SchemaType.
  • Fixed infinite loop caused by XPathNodeIterators over XmlDocuments not consistantly returning false after the end of the node set.
• Fixed the XQuery version declaration for cultures where '.' is not the decimal point.
• Fixed normalization rules of general comparisons as per erratum XQ.E18.
• For increased performance, the command line tool now runs in x86 mode by default.

Welcome

As has been announced elsewhere, XmlPrime 1.0 has been released.

We realise that it has been a long time (almost a year) since the 0.9 technical preview of XmlPrime was released and we have published very little information in the meantime.

Now XmlPrime has had a proper release, we have started this blog to provide information about the new and exciting features we are working on. We will start with a series of technical posts explaining some of the new performance enhancements we have been working on for XmlPrime 1.0.