.. October 2023, Apache Solr™ 9.4.0 available
The Solr PMC is pleased to announce the release of Apache Solr 9.4.0
Solr is the popular, blazing fast, open source NoSQL search platform. Its major features include powerful full-text search, hit highlighting, faceted search and analytics, rich document parsing, geospatial search, extensive REST APIs as well as parallel SQL. Solr is enterprise grade, secure and highly scalable, providing fault tolerant distributed search and indexing, and powers the search and navigation features of many of the world's largest internet sites.
This release contains several bug fixes. The release is available for immediate download at:
https://solr.apache.org/downloads.html
Please read CHANGES.txt for a detailed list of changes:
https://solr.apache.org/docs/9_4_0/changes/Changes.html
Solr 9.4.0 Release Highlights
- The Lucene version used by Solr has been upgraded to 9.8.
Added support for node-level caches
Circuit Breakers available for Update Requests
A new Circuit breaker for percentage of CPU utilization is added. The former "CPU" circuit breaker is now more correctly named LoadAverageCircuitBreaker as it trips on system load average which is not a percentage.
A new Always-On trace id generator and the rid parameter is being deprecated
Expensive core operations run on a dedicated thread pool - Backup, Restore and Split are expensive operations
Added support of OAuth 2.0/OIDC 'code with PKCE' flow
- Multiple bug fixes for TLS and mTLS