Some of the changes included in the Apache Lucene 10.6.0 release:

• SORTED_NUMERIC fields can now be updated in place when using a single value.
• Faster bulk scoring including MUST_NOT.
• StableTflSimilarity that estimates term rarity on the basis of term length and dokument length instead of corpus statistics.
• Various changes and fixes.

The complete list of changes can be found at: https://lucene.apache.org/core/10_6_0/changes/Changes.html.

Apache Lucene 10.6.0 can be downloaded from https://lucene.apache.org/core/downloads

Some of the changes introduced in Solr 10.1.0:

• New SolrJ client called CollectionScopedSolrClient allowing working with a single collection only.
• Queries support using {!numericRange} parser for new fields dedicated to numeric ranges – DoubleRangeField, FloatRangeField, IntRangeField, LongRangeField.
• Support for nested documents for sorted indices.
• New CombinedQuerySearchHandler dedicated to hybrid search with RRF.
• Late interaction models support in re-ranking use cases using multi valued vector fields.
• Lots of other updates and fixes.

We encourage you to read the whole list of changes at: https://solr.apache.org/docs/10_1_0

Apache Solr and its newest 10.1.0 version can be downloaded at: 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 10.5.2 can be downloaded from https://dlcdn.apache.org/lucene/java/.

Some of the changes introduced in Solr 9.11.0:

• New range field types were introduced – IntRangeField, LongRangeField, FloatRangeField, DoubleRangeField.
• Added hybrid search based on reciprocal rank fusion by using a new combined query search handler.
• MergeOnFlushMergePolicy was added to help with smaller segments merging.
• Multivalued support for dense vector fields.
• Added an UPGRADECOREINDEX core admin action to upgrade an index format in place without reindexing.
• Various bug fixes.

We encourage you to read the whole list of changes at: https://solr.apache.org/docs/9_11_0/changes/Changes.html.

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

Some of the changes included in the Apache Lucene 10.5.0 release:

• A new, experimental columnar batch indexing API.
• Wider use of SIMD instructions and vectorization in bulk scoring and document filtering.
• Concurrent search extended to many more collector types, including grouping searches.
• New queries combining scores from different index types, such as BM25 and vector scores, using Bayesian probabilities.

The complete list of changes can be found at: https://lucene.apache.org/core/10_5_0/changes/Changes.html.

Apache Lucene 10.5.0 can be downloaded from https://lucene.apache.org/core/downloads.html.

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/.