RepoJournal
Spring @spring-projects
107 wires and counting
$ status: archived — this briefing has stopped; the archive stays readable. browse live briefings →

$ status

wire 2026-07-04
stories 11
GitHub RSS Archive Reviews

© 2026 RepoJournal Home Showcase How it works Privacy

$ the-wire · showcase

Spring AI fixes MCP API deprecation, protobuf versioning conflicts

By RepoJournal · Filed · About Spring · Composed from the cited sources · methodology

dependabot[bot] sothawo ilayaperumalg
3 people shipped this
dependabot[bot] @dependabot[bot] 2 cited sothawo @sothawo 1 cited ilayaperumalg @ilayaperumalg 1 cited

Spring AI removed deprecated MCP API calls and resolved a critical protobuf version mismatch with Spring Boot 4.x that was shadowing newer versions across vector stores.

The Spring AI team cleaned up deprecated MCP API calls [1], closing out technical debt before the next major release. In parallel, they removed explicit protobuf-java version pins from the root pom.xml [2], trusting Spring Boot 4.x's bom import at 4.35.0 instead of the older 3.25.8 and 4.29.3 pins that were causing conflicts in downstream modules. This matters because the pinned versions were overriding Spring Boot's dependency management in spring-ai-qdrant-store and spring-ai-milvus-store, potentially leaving those stores vulnerable or incompatible. Spring AI also fixed OpenSearchVectorStore deserialization [4] by handling a Jackson 2 vs Jackson 3 mismatch where the OpenSearch client couldn't deserialize into Jackson 3 annotated POJOs. On the tooling side, Google GenAI ToolChoice now properly handles VALIDATED mode [5] and defaults to AUTO when only allowed-function-names is set, preventing opaque startup failures. Spring Data Elasticsearch upgraded to 9.4.3 [3], and Spring AMQP bumped JUnit to 6.1.1 [6] and HttpClient5 to 5.6.2 [7] for dev dependencies.

Action items

References

  1. [1] Remove calls to deprecated MCP API ↗ spring-projects/spring-ai
  2. [2] Remove explicit `protobuf-java` version properties ↗ spring-projects/spring-ai
  3. [3] Upgrade Elasticsearch to 9.4.3 ↗ spring-projects/spring-data-elasticsearch
  4. [4] Fix `OpenSearchVectorStore` document deserialization ↗ spring-projects/spring-ai
  5. [5] Fix Google GenAI ToolChoice VALIDATED mode and defaults ↗ spring-projects/spring-ai
  6. [6] Bump org.junit:junit-bom from 6.1.0 to 6.1.1 ↗ spring-projects/spring-amqp
  7. [7] Bump org.apache.httpcomponents.client5:httpclient5 from 5.6.1 to 5.6.2 in the development-dependencies group ↗ spring-projects/spring-amqp

$ ls spring-projects/reviews/ # the step-back reads

the week in review Spring Kafka fixes multi-value JSON header loss the month in review Spring standardizes release trains while security patches and batch fixes surface
Full archive → Weekly reviews →

Quick answers

What shipped in Spring on July 4, 2026?
Spring AI removed deprecated MCP API calls and resolved a critical protobuf version mismatch with Spring Boot 4.x that was shadowing newer versions across vector stores. In total, 7 commits and 4 pull requests landed.
Who contributed to Spring on July 4, 2026?
3 developers shipped this update, including sothawo, ilayaperumalg, and dependabot[bot].
What were the notable Spring updates?
Remove calls to deprecated MCP API, Remove explicit `protobuf-java` version properties, and Upgrade Elasticsearch to 9.4.3.
♥

$ log @spring-projects --recent

Kubernetes probe groups keep their defaults; multi-segment health paths land 90 shipped Kafka config building centralized, async listener results awaited on stop 52 shipped Spring Data moves to JSqlParser 5.4 and Hibernate 7.4.8.Final 11 shipped Spring Batch deprecates setters for required dependencies 5 shipped

$ log --all # elsewhere on the wire

Agent Security Quiet day in agent security as guard coverage reaches four clients Alignment & Post-training verl defaults Ascend RL mode, open-instruct unblocks SFT packing

$ ls showcases/

Safety Evals AI Red Teaming Agent Security Interpretability Alignment & Post-training

$ init your-desk

RepoJournal can write one of these for any repo you care about. Sign in with GitHub, pick your repos and sources, and your desk gets a wire like this one every morning.