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wire 2026-07-08
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SPRING-AI PATCHES ANTHROPIC STREAM TRUNCATION BUG, FIXES OLLAMA MODEL INHERITANCE

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

dependabot[bot]
1 person shipped this
dependabot[bot] @dependabot[bot] 1 cited

Spring AI shipped fixes for two production issues that break AI integrations: Anthropic thinking blocks disappearing on stream truncation and Ollama requests failing when prompt options don't inherit the configured model.

The Anthropic thinking signature fix [1] prevents data loss when streams terminate early by guarding against missing signatures before they reach the replay buffer, with logging to surface when this happens. More critically, OllamaChatModel now correctly inherits its base model configuration when prompt-level options are provided [2], fixing the 404 failures that occur when environments lack the default Mistral model. Spring AI also hardened against locale-specific string comparisons [3] by using Locale.ROOT for protocol operations like uppercase/lowercase on wire values, ensuring builds succeed on Turkish JVMs where 'I'.toLowerCase() incorrectly produces 'ı'. These are all targeted fixes without breaking changes. On the security desk, Spring Security bumped Jackson to 2.22.1 [5], a routine patch that includes maintenance improvements. Documentation got a minor typo correction [4].

Action items

References

  1. [1] Guard against missing Anthropic thinking signature on stream truncation ↗ spring-projects/spring-ai
  2. [2] Fix OllamaChatModel prompt options not inheriting configured model ↗ spring-projects/spring-ai
  3. [3] Use Locale.ROOT for String uppercase/lowercase operations on wire/protocol values ↗ spring-projects/spring-ai
  4. [4] Fix duplicate "is is" typo in openai-chat.adoc ↗ spring-projects/spring-ai
  5. [5] Bump com.fasterxml.jackson:jackson-bom from 2.22.0 to 2.22.1 ↗ spring-projects/spring-security

$ 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
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Quick answers

What shipped in Spring on July 8, 2026?
Spring AI shipped fixes for two production issues that break AI integrations: Anthropic thinking blocks disappearing on stream truncation and Ollama requests failing when prompt options don't inherit the configured model. In total, 6 commits and 2 pull requests landed.
Who contributed to Spring on July 8, 2026?
1 developer shipped this update, including dependabot[bot].
What were the notable Spring updates?
Guard against missing Anthropic thinking signature on stream truncation, Fix OllamaChatModel prompt options not inheriting configured model, and Use Locale.ROOT for String uppercase/lowercase operations on wire/protocol values.
♥

$ 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

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