LBNL released the Modelica Buildings library 5.1.0, which is based on the
Modelica IBPSA Library (https://github.com/ibpsa/modelica), and it released
BuildingsPy 1.7.0 that helps automating Modelica simulations and
development.

Modelica Buildings 5.1.0 adds a model for propylene glycol - water
mixtures, a model for long pipes suited for district heating and cooling
simulations, a new valve model whose opening characteristics can be fit to
measured data, and idealized models that allow to prescribe the temperature
and humidity in any part of a fluid flow system.

Version 5.1.0 also changes the license to a 3-clause BSD license, and it
improves various existing models.

It is backward compatible with versions 5.0.0 and 5.0.1, and has been
tested with Dymola and JModelica.

For a detailed list of changes, see
http://simulationresearch.lbl.gov/modelica/releases/v5.1.0/help/Buildings_UsersGuide_ReleaseNotes.html#Buildings.UsersGuide.ReleaseNotes.Version_5_1_0

For more information and download, visit
https://simulationresearch.lbl.gov/modelica/

The development page is https://github.com/lbl-srg/modelica-buildings