Hi, there are still some issues with LibreOffice integration (https://github.com/languagetool-org/languagetool/issues/2602, [DE] kritischer Fehler!), so we’re splitting the LanguageTool 4.9 release. The stand-alone version is now available from https://languagetool.org, the Maven artifacts for Java integration will be available in a few hours. The add-on for LibreOffice will hopefully be released in a few days as LT 4.9.1. A full release announcement will follow then.
The feature freeze is over now, feel free to commit to master as usual.