Wolfram released Mathematica 10.1. Software Store customers with active Mathematica subscriptions are eligible to download the new release.
Mathematica 10.1 add enhancements to performance, coverage, and convenience -- as well as several major new algorithmic achievements such as image identification and user-defined grammar rule deployment.
For more information on the new Wolfram language features in Mathematica 10.1, visit the Wolfram blog at http://blog.wolfram.com/tag/10.1.