Who contributed to Anthropic on June 18, 2026?

3 developers shipped this update, including antsujay, bryan-anthropic, and morganl-ant.

What were the notable Anthropic updates?

stall-detection: use raw SYS_gettid syscall for glibc < 2.30 compat, policy(scan): review whole payload incl. .claude/ + flag cross-service credential routing, and v2.1.181.

@anthropics

Claude SDKs and developer tooling

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The Wire · Showcase

TOKIO FIXES GLIBC ANCIENT-OS BLOCKER, JAVA SDK ALIGNS FOUNDRY PATHS

Q: What shipped in Anthropic on June 18, 2026?

Tokio's stall-detection feature was breaking on RHEL/CentOS 8 and Debian 10. Fixed. Java SDK's Foundry client just stopped duplicating path segments. In total, 37 commits, 62 pull requests, and 1 releases landed.

By RepoJournal · Filed 06:02 UTC on June 18, 2026 · About Anthropic

3 people shipped this

antsujay @antsujay 1 cited

bryan-anthropic @bryan-anthropic 1 cited

morganl-ant @morganl-ant 1 cited

Tokio's stall-detection feature was breaking on RHEL/CentOS 8 and Debian 10. Fixed. Java SDK's Foundry client just stopped duplicating path segments.

Tokio shipped a portability fix [1] swapping `libc::gettid()` for raw `syscall(SYS_gettid)` to drop the hard glibc 2.30 dependency that was killing binaries on older enterprises (RHEL 8, Debian 10). The syscall path works on every Linux kernel since 2.4.11 with zero glibc version tax, matching what nix and rustix do internally. On the Java SDK front, the Foundry client was inserting duplicate `/anthropic` path segments when baseUrl already carried the suffix, breaking cross-SDK parity [5]. Fixed. The same SDK also shipped three build infrastructure wins: Gradle 9 migration with Kotlin 2.0 metadata [7], cold compile times cut from 84s to 62s via proper JIT tuning [6], and build-cache portability for JavaExec tasks [8]. Knowledge-work-plugins tightened credential-review scope [2] to catch exfiltration paths in dotdirs and non-loaded plugin surfaces, while Claude Code pushed 2.1.181 with `/config` runtime syntax, Apple Events sandboxing, and Bun 1.4 [3]. Code-modernization plugin now orchestrates agents via Claude's Workflow tool instead of prose fan-out, hardening every subagent against prompt injection from analyzed codebases [4].

Action items

→ Update tokio to 1.52.9003+anthropic if you're shipping on RHEL 8, CentOS 8, or Debian 10 anthropics/tokio [immediate]
→ Java SDK users: verify ANTHROPIC_FOUNDRY_BASE_URL includes /anthropic suffix; SDK no longer rewrites paths anthropics/anthropic-sdk-java [plan]
→ Review knowledge-work-plugins policy changes for dotdir credential scanning in your air-gapped deployments anthropics/knowledge-work-plugins [plan]
→ Monitor code-modernization plugin rollout; Workflow tool fallback keeps older builds stable anthropics/claude-plugins-official [monitor]

References

[1] stall-detection: use raw SYS_gettid syscall for glibc < 2.30 compat ↗ anthropics/tokio
[2] policy(scan): review whole payload incl. .claude/ + flag cross-service credential routing ↗ anthropics/knowledge-work-plugins
[3] v2.1.181 ↗ anthropics/claude-code
[4] code-modernization: dynamic workflow orchestration + untrusted-content hardening ↗ anthropics/claude-plugins-official
[5] fix(foundry): align baseUrl contract with the other SDKs (/anthropic in baseUrl, no path rewrite) (#84) anthropics/anthropic-sdk-java
[6] build: speed up local and CI builds (#62) anthropics/anthropic-sdk-java
[7] build: migrate to Kotlin 2.0 metadata and Gradle 9 (#65) anthropics/anthropic-sdk-java
[8] build: make JavaExec tasks build-cacheable + speed up scripts (#80) anthropics/anthropic-sdk-java

Quick answers

What shipped in Anthropic on June 18, 2026?: Tokio's stall-detection feature was breaking on RHEL/CentOS 8 and Debian 10. Fixed. Java SDK's Foundry client just stopped duplicating path segments. In total, 37 commits, 62 pull requests, and 1 releases landed.
Who contributed to Anthropic on June 18, 2026?: 3 developers shipped this update, including antsujay, bryan-anthropic, and morganl-ant.
What were the notable Anthropic updates?: stall-detection: use raw SYS_gettid syscall for glibc < 2.30 compat, policy(scan): review whole payload incl. .claude/ + flag cross-service credential routing, and v2.1.181.

PLUGIN VALIDATION SWEEP ACROSS THREE REPOS, 43 PRS MERGED

Automated SHA bumps for 14 plugins passed validation overnight across the official, community, and knowledge-work plugin repos, with every PR validated before merge.

ai 43 shipped 1-min read

@anthropics 2 days ago

PLUGIN ECOSYSTEM SHIPS 47 VALIDATED UPDATES ACROSS THREE REPOS

Automated validation swept through the plugin ecosystem overnight, pushing 12 coordinated SHA bumps across community, official, and knowledge-work registries.

ai 47 shipped 1-min read

@anthropics 3 days ago

CLAUDE AGENT SDK FIXES STDIN CLOSURE BUG IN BACKGROUND TASKS

The Python SDK's query method was prematurely closing stdin when background subagents were still in flight, breaking tool calls and silently bypassing hooks - now fixed in v0.2.127.

ai 16 shipped 1-min read

@anthropics 4 days ago

BUFFA v0.9.1 PATCHES REGRESSION THAT BROKE ORDINARY SCHEMAS

Buffa shipped an emergency patch overnight after v0.9.0 broke codegen on schemas with a few hundred proto files, small enough to hit in production.

ai 113 shipped 1-min read

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