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12 February 2024,  Apache Solr™ 9.5.0 available

The Solr PMC is pleased to announce the release of Apache Solr 9.5.0

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https://solr.apache.org/docs/9_5_0/changes/Changes.html

Solr 9.5.0 Release Highlights

  • Solr now supports "node-level" Memory and CPU circuit breakers, that serve as a default inherited by all cores on that node.
  • Collection and Replica Properties may now be used as property substitution variables in configuration files (e.g. solrconfig.xml).
  • Solr now auto-reloads updated keystore and truststore files when TLS is enabled.
  • Tracing support has received a number of quality-of-life improvements, including improved tracking of distributed collection commands and increased coverage for internal requests made with the Apache and Jetty HTTP clients.
  • Solr now offers the <clusterSingleton>  solr.xml tag as a means of configuring node-level plugins in an "immutable infrastructure"-friendly way.  This offers an alternative to using the /cluster/plugins  API for managing plugins in "live" clusters.
  • Starting with 9.5.0, Solr releases now produce an OpenAPI specification covering many of their v2 APIs. Consumers may use this spec with an array of OpenAPI-compatible tooling to generate documentation, clients in various programming languages, etc.  See https://www.openapis.org/what-is-openapi for more details.