We are pleased to announce the official release of OpenMx version 2.12.2. Click here for instructions on how to install the package from our repository. As usual, our repository has package binaries for Windows and MacOS, and source tarballs for Linux/GNU and other non-Mac Unix-likes, all of which come with the proprietary NPSOL optimizer. Alternately, users may install the fully open-source build of the new version from CRAN.

New Features, Performance Improvements, and Tweaks Since v2.9.6:

• A new optimizer, which uses generalized simulated annealing, has been implemented.
• There are two new functions, omxAkaikeWeights() and mxModelAverage(), for information-theoretic model-averaging and multimodel inference.

We are pleased to announce the official release of OpenMx version 2.9.6. (update: 2.9.9 is now available - for users, this is near-identical).

CRAN

Users of Windows and Linux/GNU can install OpenMx v2.9.6 from CRAN with the usual `install.packages("OpenMx").

*note*: CRAN has not been able to build functioning OpenMx binaries for MacOS since OpenMx v2.9.6.

Advanced MacOS users can still obtain version 2.9.9 source via CRAN, but the Mac onto which you are installing the package must be configured to build it from source.

The getOpenMx.R script has a new location, and therefore, the instructions for installing OpenMx from the Development Team's repository have changed! Now, you would run the following command during an R session:
source('https://openmx.ssri.psu.edu/software/getOpenMx.R')
See our download instructions for details.

The 2018 International Workshop on Statistical Genetic Methods for Human Complex Traits will be held in Boulder, CO, USA, from March 5th to March 9th.

We are pleased to announce the NIDA and OBSSR funded 'Advanced Genetic Epidemiology Statistical Workshop: Applications to Drug Abuse' , which will be held October 23-27 in Richmond, Virginia.

We are pleased to announce the launch of "OpenMx TV," the official Youtube channel of the OpenMx Project! The channel currently hosts two playlists of instructional videos about OpenMx, intended for beginners.