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wire 2026-07-28
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SPRING BOOT ADDS IMAGE-BASED BUILD CACHES, DEPRECATES TESTRESTTEMPLATE

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

Sanghyuk Jung Brian Clozel BoykoAlex TYsewyn Tran Ngoc Nhan Steven Martin Lippert
10 people shipped this
Sanghyuk Jung @benelog 2 cited Brian Clozel @bclozel 2 cited BoykoAlex @BoykoAlex 1 cited TYsewyn @TYsewyn 1 cited Tran Ngoc Nhan @ngocnhan-tran1996 1 cited Steven @Stexxen 1 cited Martin Lippert @martinlippert Marten Deinum @mdeinum Stéphane Nicoll @snicoll Mark Paluch @mp911de

Spring Boot shipped a major build cache upgrade that lets you store container images in registries and share them across hosts, while deprecating TestRestTemplate in favor of the newer RestTestClient.

The image-based build cache feature [1] integrates with both Maven and Gradle plugins, using the lifecycle's `-cache-image` argument to store build artifacts in container registries. This is a significant productivity win for teams running distributed builds. Spring Boot also deprecated `TestRestTemplate` [2] in favor of RestTestClient, with a new `TrustAllTlsRequestFactory` testing utility [5] to handle TLS certificate validation in tests. Across the Spring portfolio, cleanup continues: spring-tools removed its old Azure plugin dashboard [8] and fixed duplicate "the" typos across multiple repos [3][4]. Spring Kafka updated documentation anchors [6] after a recent rename of partition assignment sections, marked for automatic backport to 4.0.x. Spring Data Elasticsearch added a new documentation section on server type configuration [7]. All told, 29 commits and 9 PRs flowed through the ecosystem overnight.

Action items

References

  1. [1] Add support for image-based build caches ↗ spring-projects/spring-boot
  2. [2] Deprecate `TestRestTemplate` ↗ spring-projects/spring-boot
  3. [3] Remove duplicated "the" ↗ spring-projects/spring-tools
  4. [4] Remove duplicated "the" ↗ spring-projects/spring-batch-extensions
  5. [5] Add testing utility for RestTestClient ↗ spring-projects/spring-boot
  6. [6] Update `Topic Partition Assignment` anchor (#4534) ↗ spring-projects/spring-kafka
  7. [7] New Doc section on Server Type ↗ spring-projects/spring-data-elasticsearch
  8. [8] Remove old dashboard for azure plugin ↗ spring-projects/spring-tools

$ 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
Topics: Java Full archive → Weekly reviews →

Quick answers

What shipped in Spring on July 28, 2026?
Spring Boot shipped a major build cache upgrade that lets you store container images in registries and share them across hosts, while deprecating TestRestTemplate in favor of the newer RestTestClient. In total, 29 commits and 9 pull requests landed.
Who contributed to Spring on July 28, 2026?
10 developers shipped this update, including BoykoAlex, Sanghyuk Jung, Martin Lippert, Marten Deinum, TYsewyn, Brian Clozel, Stéphane Nicoll, and Tran Ngoc Nhan, and 2 more.
What were the notable Spring updates?
Add support for image-based build caches, Deprecate `TestRestTemplate`, and Remove duplicated "the".
♥

$ 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

@openclaw Cold-start Gateway diagnostics stop crying wolf, doctor repairs plugin drift Agentic Coding Cline desktop bundles shrink, goose unblocks its own clicks

$ ls showcases/

Rails Django Laravel Node.js Go Vercel Vue.js Kubernetes HashiCorp Arch Linux Linux Anthropic

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