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This is not the final release version
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= Release Notes for OpenModelica [milestone:1.9.2] =
[[PageOutline(2-3)]] 

The OpenModelica 1.9.2 Beta release is available now, January 31, 2015. Please try it and give feedback! The final release is planned within 1-2 weeks after some more testing. 
The most important enhancements in the OpenModelica 1.9.2 release:
* The OpenModelica compiler has moved to a new development and release platform: the bootstrapped OpenModelica compiler. This gives advantages in terms of better programmability, maintenance, debugging, modularity and current/future performance increases.
* The OpenModelica graphic connection editor OMEdit has become 3-5 times faster due to faster communication with the OpenModelica compiler linked as a DLL. This was made possible by moving to the bootstrapped compiler.
* Further improved simulation coverage for a number of libraries. 
* OMEdit graphic connection editor improvements

== OpenModelica Compiler (OMC) ==

This release mainly includes improvements of the OpenModelica Compiler (OMC), including, but not restricted to the following:
* The OpenModelica compiler has moved to a new development and release platform: the bootstrapped OpenModelica compiler. This gives advantages in terms of better programmability, maintenance, debugging, modularity and current/future performance increases.
* Further improved simulation coverage for a number of libraries compared to 1.9.1.  For example:
  - MSL 3.2.1               100% compilation, 97% simulation (3% increase)
  - MSL Trunk              99% compilation (1% increase), 93% simulation (3% increase)
  - ModelicaTest 3.2.1  99% compilation (2% increase), 95% simulation (6% increase)
  - ThermoSysPro        100% compilation,  80% simulation (17% increase)
  - ThermoPower           97% compilation (5% increase),  85% simulation (5% increase)
  - Buildings          	     80% compilation (1% increase),  73% simulation (1% increase)
* Further enhanced OMC compiler front-end coverage, scalability, speed and memory. 
* Better initialization.
* Improved tearing.
* Improved non-linear, linear and mixed system solving.
* Common subexpression elimination support - drastically increases performance of some models.

== Graphic Editor OMEdit ==
* The OpenModelica graphic connection editor OMEdit has become 3-5 times faster due to faster communication with the OpenModelica compiler linked as a DLL. This was made possible by moving to the bootstrapped compiler.
* Enhanced simulation setup window in OMEdit, which among other things include better support for integration methods and dassl options. 
* Support for running multiple simultaneous simulation. 
* Improved handling of modifiers.
* Re-simulate with changed options, including history support and re-simulating with previous options possibly edited.
* More user friendly user interface by improved connection line drawing, added snap to grid for icons and conversion of icons from PNG to SVG, and some additional fixes.

== Optimization ==

Some smaller improvements of the Dynamic Optimization module with collocation, using Ipopt.

== FMI Support ==
Further improved for FMI 2.0 model exchange import and export, now compliant according to the FMI compliance tests. FMI 1.0 support has been further improved.

== Detailed Changes ==

[[TicketQuery(milestone=1.9.2,status=closed,severity!=trivial,resolution=fixed|-,col=changelog,group=component,format=table)]]

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