Until version 13.1.0, Julian Valentin developed LTEX+ as LTEX. LTEX is a fork of the abandoned LanguageTool for Visual Studio Code extension. This extension would not have been possible without the work of Adam Voss and Julian Valentin.
Distributions of LTEX+ include ltex-ls-plus under the terms of the Mozilla Public License, version 2.0. For information on dependencies of ltex-ls-plus, please see ltex-ls-plus/ACKNOWLEDGMENTS.md.