⚠️ IMPORTANT: Querqy 5.5 for Solr introduces some breaking changes that will affect you if you are upgrading from an older version and if

• you are using Info Logging, or
• rely on the debug output format, or
• you are using a custom rewriter implementation

See here for the release notes: https://querqy.org/docs/querqy/release-notes.html#major-changes-in-querqy-for-solr-5-5-1

Querqy is a framework for query preprocessing in Java-based search engines.

This is the repository for querqy-core, querqy-lucene and querqy-solr. Repositories for further Querqy integrations can be found at:

• https://github.com/querqy/querqy-elasticsearch/ (Querqy for Elasticsearch)
• https://github.com/querqy/querqy-opensearch/ (Querqy for OpenSearch)
• https://github.com/querqy/querqy-unplugged/ (Querqy for rewriting queries outside the search engine)

Visit docs.querqy.org/querqy/ for detailed documentation.

Please make sure you read the release notes!

Check out Querqy.org for related projects that help you speed up search software development.

Developer channel: Join #querqy on the Relevance & Matching Tech Slack space

Querqy is licensed under the Apache License, Version 2.

Please read our developer guidelines before contributing.