All About Microsoft posted a story that the newest release of Microsoft's BizTalk enterprise-integration server is set to arrive on April price lists with a new per-core licensing model attached.
Customers who are planning to deploy the latest version of BizTalk on machines with processors above four cores may end up paying more. However, BizTalk 2010 customers who have Software Assurance don't need to do anything (in the short term, at least), as they have perpetual rights for the per-processor pricing, Multishoring.info noted on its site.Microsoft BizTalk 2013 to switch to a per-core licensing model
Microsoft also moved from a per-processor to per-core licensing model with SQL Server 2012 last year.