The release is all about fixing two of the reported bugs. For more details we suggest having a look at Apache Lucene change log.

Apache Lucene 10.3.2 can be downloaded from https://dlcdn.apache.org/lucene/java/.

Some of the changes introduced in Solr 9.10.0:

• Support for Java 24 and newer with Security Manager turned off.
• Support for external Apache Tika server – we no longer need to process document in Solr process.
• Apache Lucene upgrade – Solr now uses 9.12.3.
• The shards.preference=replica.location parameter now supports host option.
• A few functions marked as deprecated and scheduled for removal in Solr 10:
  • XLSXResponseWriter,
  • Apache Tika based language detection,
  • In process Apache Tika use in Apache Solr.

We encourage you to read the whole list of changes at: https://solr.apache.org/docs/9_10_0/changes/Changes.html.

Apache Solr 9.10.0 can be downloaded from https://dlcdn.apache.org/solr/.

Some of the changes included in the Apache Lucene 10.3.0:

• Support for JDK 25 in Panama Vectorization Provider.
• Support for Re-Ranking Queries using Late Interaction Model Multi-Vectors.
• Decrease TieredMergePolicy’s default number of segments per tier from 10 to 8.
• MultiIndexMergeScheduler – multi-tenant merge scheduler.
• Lots of improvements and adjustments.

The complete list of changes can be found at: https://lucene.apache.org/core/10_3_0/changes/Changes.html.

Apache Lucene 10.3.0 can be downloaded from https://lucene.apache.org/core/downloads.html.

Some of the changes introduced in Solr 9.9.0:

• Starting from 9.9.0 Solr supports encoding text to vectors during indexing via external LLM services.
• Function queries can use a numeric subset of Javascript and in additon to that access fileds and score value. All thank to the Expressions module of Apache Lucene.
• Jetty’s Graceful Shutdown is now supported when SOLR_JETTY_GRACEFUL is set to true preventing Solr from disrupting queries during shutdown.
• Various optimizations and bug fixes in SolrJ clients.
• PKI Authentication supports caching and is more performant when working in high-throughput clusters.

We encourage you to read the whole list of changes at: https://solr.apache.org/docs/9_9_0/changes/Changes.html.

Apache Solr 9.9.0 can be downloaded from https://dlcdn.apache.org/solr/.

The release is all about fixing two of the reported bugs. For more details we suggest having a look at Apache Lucene change log.

Apache Lucene 10.2.2 can be downloaded from https://dlcdn.apache.org/lucene/java/.

The release is all about fixing two of the reported bugs. For more details we suggest having a look at Apache Lucene change log.

Apache Lucene 9.12.2 can be downloaded from https://dlcdn.apache.org/lucene/java/.

The release is all about fixing two of the reported bugs. For more details we suggest having a look at Apache Lucene change log.

Apache Lucene 10.2.1 can be downloaded from https://dlcdn.apache.org/lucene/java/.

Some of the changes included in the Apache Lucene 10.2.0:

• New SeededKnnVectorQuery was introduced, an optimization to KnnVectorQuery that
  allows selecting better entry points for vector search.
• Improvements to Java 24 vector API support.
• Searches that don’t require score and match many documents should see increase in their performance, some queries, such as disjunction of term queries are reported to be from 77% to 4x faster based on the data gathered from Lucene nightly benchmarks.
• TieredMergePolicy’s default floor segment size was increased from
  2MB to 16MB. This is expected to result in slightly slower indexing, but lower number of segments resulting in higher query performance for high per-segment overhead queries such as vector queries or multi-term queries.
• And much, much more.

The complete list of changes can be found at: https://lucene.apache.org/core/10_2_0/changes/Changes.html.

Apache Lucene 10.2.0 can be downloaded from https://lucene.apache.org/core/downloads.html.

The 9.8.1 is a bug fix release. The full list of changes can be found here.

You can download Solr 9.8.1 here.

Some of the changes introduced in Solr 9.8:

• Solr cross data center feature graduated into a main Solr feature!
• A give request may now be limited when it comes to the amount of memory it can use using the memAllowed parameter.
• The lib tags in solrconfig.xml are now silently ignored unless you include the SOLR_CONFIG_LIB_ENABLED environment variable set to true.
• A new parser called knn_text_to_vector was added allowing to calculate text embeddings using external LLMs.

We encourage you to read the whole list of changes at: https://solr.apache.org/docs/9_8_0/changes/Changes.html.

Apache Solr 9.8 can be downloaded from https://dlcdn.apache.org/solr/.