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The Open MPI Team, representing a consortium of research, academic, and industry partners, is pleased to announce the release of Open MPI version 1.1. This release contains many new features, performance enhancements, and stability bug fixes. Version 1.1 can be downloaded from the main Open MPI web site or any of its mirrors (mirrors will be updating shortly).

We strongly recommend that all users upgrade to the version 1.1 series, if possible. The 1.0 series will likely have one more bug fix release (v1.0.3), but is generally considered deprecated in favor of the new 1.1 series.

Here are a list of changes in v1.1 as compared to v1.0.x: