Cognos Dynamic Query Mode (DQM) is an intelligent data caching mechanism which can dramatically improve the performance of OLAP style queries over a range of OLAP sources, such as SAP BW, Essbase, Analsys Services and TM1 and also over Relational Sources.
IBM Cognos 10.2 Enterprise was announced recently and it brings a bunch of improvements,with a significant improvement to the graphing capabilities of the personal analytic tool, Cognos Insight, A rebadging of Business Insight to Cognos Workspace along with a nice set of enhancements, a new cubing engine that is builds further on the integration of TM1 into the Cognos stack and then on the back end, a full 64 bit environment, Dynamic Query support for Salesforce, SAP ECC and big data engines amongst other things. All in all, it seems like a great release.