Two big changes for the TestCoverage open source tool: Embedded Python support, and a new UI 

Embedded Python

Previously, TestCoverage could only track unit test coverage for code written in ObjectScript. It would ignore code written in other languages like Python in the coverage statistics.

As more and more IRIS application code is being written in Embedded Python instead of just ObjectScript, it's critical that TestCoverage can include coverage results for Embedded Python code.