LBNL released the Modelica Buildings library 5.0.0, which is based on the
Modelica IBPSA Library (https://github.com/ibpsa/modelica).

Version 5.0.0 is a major new release that contains new packages to model
control sequences, a package with control sequences from ASHRAE Guideline
36 and a package with pre-configured models for data center chilled water
plants. All models simulate with Dymola 2017FD01, Dymola 2018 and with
JModelica (revision 10374).

The following major changes have been done:

- The package Buildings.Controls.OBC.CDL has been added. This package
provides elementary blocks to implemented control sequences. The blocks
conform to the Control Description Language specification published at
http://obc.lbl.gov.
- The package Buildings.Controls.OBC.ASHRAE.G36_PR1 has been added. This
package contains control sequences for variable air volume flow systems
according to ASHRAE Guideline 36, public review draft 1. The implementation
uses blocks from the above described Buildings.Controls.OBC.CDL package,
and conforms to the Control Description Language specification specified at
http://obc.lbl.gov/specification/cdl.html.
- New models for ideal heaters and sensible coolers, and ideal
humidifiers have been added.

This release also improves various existing models.

For a detailed list of changes, see
http://simulationresearch.lbl.gov/modelica/releases/v5.0.0/help/Buildings_UsersGuide_ReleaseNotes.html#Buildings.UsersGuide.ReleaseNotes.Version_5_0_0

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

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