Some of the changes introduced in Apache Solr 10.0.0:

• Java 21 is now the minimum Java version for Apache Solr.
• GPU details were added to the Admin UI.
• New, experimental Admin UI was added – available under URI – /solr/compose.
• When starting Solr using the command line bin/solr Solr now starts in cloud mode by default.
• We can now use modern NLP models from Apache OpenNLP with Solr.
• Changes to Solr vector functionality:
  • Support for SeededKnnVectorQuery.
  • Support for PatienceKnnVectorQuery.
  • Support for scalar quantized dense vectors.
  • Support for binary quantized dense vectors.
  • Support for cuVS-Lucene as a pluggable codec.
• MergeOnFlushMergePolicy is enabled in Solr.
• Lots of removals for deprecated features:
  • LowerCaseTokenizer and LowerCaseTokenizerFactory are now removed.
  • ManagedSynonymFilterFactory is now removed.
  • JaspellLookupFactory suggester is now removed.
  • Analytics component was removed.
  • ExternalFileField is now removed.
  • CurrencyField is now removed.
  • EnumField is now removed.
• Raising the per ramPerThreadHardLimit to be configurable with more than 2GB.
• Any much, much more including dependencies upgrades.

We encourage you to take a look at the full list of changes available at https://solr.apache.org/docs/10_0_0/changes/Changes.html.

Apache Solr and its newest 10.0.0 version can be downloaded at: https://dlcdn.apache.org/solr/.

Some of the changes included in the Apache Lucene 10.4.0 release:

• Improved quantized formats for dense vectors and knn search.
• API changes around dense vectors and numerical doc values.
• Deleted documents handling improvements.

The complete list of changes can be found at: https://lucene.apache.org/core/10_4_0/changes/Changes.html.

Apache Lucene 10.4.0 can be downloaded from https://lucene.apache.org/core/downloads.html.

The 9.10.1 is a bug fix release. The full list of changes can be found here.

You can download Solr 9.10.1 here.

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/.

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 9.12.3 can be downloaded from https://dlcdn.apache.org/lucene/java/.

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/.