The release notes have moved to github: ​https://github.com/OpenModelica/OpenModelica/releases

OpenModelica/wiki/ReleaseNotes/1.3.1 OpenModelica/wiki/ReleaseNotes/1.4.0 OpenModelica/wiki/ReleaseNotes/1.4.1 OpenModelica/wiki/ReleaseNotes/1.4.2 OpenModelica/wiki/ReleaseNotes/1.4.3 OpenModelica/wiki/ReleaseNotes/1.4.4 OpenModelica/wiki/ReleaseNotes/1.4.5 OpenModelica/wiki/ReleaseNotes/1.5.0 OpenModelica/wiki/ReleaseNotes/1.6.0 OpenModelica/wiki/ReleaseNotes/1.7.0 OpenModelica/wiki/ReleaseNotes/1.8.0 OpenModelica/wiki/ReleaseNotes/1.8.1 OpenModelica/wiki/ReleaseNotes/1.9.0 OpenModelica/wiki/ReleaseNotes/1.9.1 OpenModelica/wiki/ReleaseNotes/1.9.2 OpenModelica/wiki/ReleaseNotes/1.9.3 OpenModelica/wiki/ReleaseNotes/1.9.4 OpenModelica/wiki/ReleaseNotes/1.10.0 OpenModelica/wiki/ReleaseNotes/1.11.0 OpenModelica/wiki/ReleaseNotes/1.12.0 OpenModelica/wiki/ReleaseNotes/1.13.0 OpenModelica/wiki/ReleaseNotes/1.14.0 OpenModelica/wiki/ReleaseNotes/1.15.0 OpenModelica/wiki/ReleaseNotes/1.16.0 OpenModelica/wiki/ReleaseNotes/1.16.4 OpenModelica/wiki/ReleaseNotes/1.16.5 OpenModelica/wiki/ReleaseNotes/1.17.0 OpenModelica/wiki/ReleaseNotes/1.18.0 OpenModelica/wiki/ReleaseNotes/1.18.1 OpenModelica/wiki/ReleaseNotes/1.19.0 OpenModelica/wiki/ReleaseNotes/1.19.2 OpenModelica/wiki/ReleaseNotes/1.20.0