It is my pleasure to announce that a feature-complete Spring Data `2026.0` release candidate is available now! This release is in preparation for the Spring Boot 4.1 release candidate next week. We expect final releases for general availability in May.

This RC ships a couple of New and Noteworthy changes:

Upsert functionality for Spring Data Relational using `MERGE` or `INSERT … ON CONFLICT … DO UPDATE` syntax available on the Template API
A `RedisMessageSendingTemplate` complementing annotation-driven Redis Pub/Sub listeners with a consistent usage of the same underlying `MessageConverter`s.
`RedisCache.resetCaches()` optimization allowing to reset multiple caches in a single call through `FLUSHDB` if Redis is used exclusively for caching.

You can find the consolidated list of changes at the release notes for the `2026.0` release train.

To round things off, here are the links to the documentation and individual change logs:

Spring Data Commons `4.1 RC1` - Javadoc - Documentation - Changelog
Spring Data JPA `4.1 RC1` - Javadoc - Documentation - Changelog
Spring Data MongoDB `5.1 RC1` - Javadoc - Documentation - Changelog
Spring Data Neo4j `8.1 RC1` - Javadoc - Documentation - Changelog
Spring Data for Apache Cassandra `5.1 RC1` - Javadoc - Documentation - Changelog
Spring Data KeyValue `4.1 RC1` - Javadoc - Documentation - Changelog
Spring Data LDAP `4.1 RC1` - Javadoc - Documentation - Changelog
Spring Data REST `5.1 RC1` - Javadoc - Documentation - Changelog
Spring Data Redis `4.1 RC1` - Javadoc - Documentation - Changelog
Spring Data Elasticsearch `6.1 RC1` - Javadoc - Documentation - Changelog
Spring Data Couchbase `6.1 RC1` - Javadoc - Documentation - Changelog
Spring Data Relational `4.1 RC1` - Javadoc - Documentation - Changelog

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Spring Data 2026.0.0-RC1 enters release candidate phase