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See last code changes at Dev (git master)

Note: Due to the development work, this may be in bad state. Use with care



Also see Release Notes

Known Issues


OpenSimulator requires:

  • At least .NET Framework 4.6 when running under Windows.
  • At least Mono 5.x when running under Mono (Linux or Mac).

Due to database migration renumbering which occurred at release, if you are upgrading from a version of OpenSimulator prior to, then you MUST first upgrade to ** and then proceed to upgrade directly to See for more advice.

Changes and Fixes

  • Added a real transparent texture for default transparency and avatar alphas transparency. Asset 3a367d1c-bef1-6d43-7595-e88c1e3aadb3 must be removed by hand from any retained current regions cache (at bin/assetcache/3a3) and viewers cache clean. Then make sure you do one viewer login to an updated grid/region.
  • Altered mechanism for reading OSSL section of OpenSim.ini to use config-include/osslDefaultEnable.ini which then loads config-include/osslEnable.ini overrides. Also note the section name is now [OSSL]. Please change your OpenSim.ini and config-include/osslEnable.ini accordingly using the examples in OpenSim.ini.example and configo-nclude/osslEnable.ini.example.
  • Added some OSSL functions osGetSitActiveRange, osGetLinkSitActiveRange, osGetStandTarget, osGetLinkStandTarget, osSetSitActiveRange, osSetLinkSitActiveRange, osSetStandTarget, osSetLinkStandTarget, ….
  • Removed outdated support for SimianGrid. Simian was a web/php alternative to Robust (https://code.google.com/archive/p/openmetaverse).


Many, many thanks to all the developers, testers and community members who contributed to this release and who help out with OpenSimulator generally. Your hard work makes this all possible.

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