awslabs/mcp

v2026.05.20260514231351 Feature

This release adds 1 notable feature for engineering teams evaluating rollout.

Published 20d MCP SaaS Integrations

✓ No known CVEs patched

✓ No known CVEs patched in this version

Topics

aws mcp mcp-client mcp-clients mcp-host mcp-server

+3 more

mcp-servers mcp-tools modelcontextprotocol

Affected surfaces

auth

Summary

AI summary

Fixed client app ID header transmission.

Type	Severity	Summary	CVE
Feature	Medium	auth conflict detection and structured recovery added by @occhangg auth conflict detection and structured recovery added by @occhangg Source: llm_adapter@2026-05-21 Confidence: high	—
Bugfix
Bugfix	Medium	enforce allow_write check in apply_yaml of eks-mcp-server by @srhsrhsrhsrh enforce allow_write check in apply_yaml of eks-mcp-server by @srhsrhsrhsrh Source: llm_adapter@2026-05-21 Confidence: high	—
Bugfix	Medium	client app id header fixed by @occhangg client app id header fixed by @occhangg Source: llm_adapter@2026-05-21 Confidence: low	—
Bugfix	Medium	clarify targetRegions is required for connector in aws-transform-mcp-server by @occhangg clarify targetRegions is required for connector in aws-transform-mcp-server by @occhangg Source: llm_adapter@2026-05-21 Confidence: low	—
Refactor	Medium	Observability Admin module removed by @shawzhan-aws Observability Admin module removed by @shawzhan-aws Source: llm_adapter@2026-05-21 Confidence: low	—
Other	Medium	add PyPI download badges to README for aws-transform-mcp-server by @occhangg add PyPI download badges to README for aws-transform-mcp-server by @occhangg Source: llm_adapter@2026-05-21 Confidence: low	—

Full changelog

feat: auth conflict detection and structured recovery by @occhangg in https://github.com/awslabs/mcp/pull/3491
fix: client app id header by @occhangg in https://github.com/awslabs/mcp/pull/3497
fix(aws-transform-mcp-server): clarify targetRegions is required for connector by @occhangg in https://github.com/awslabs/mcp/pull/3501
refactor(observability-admin): Remove Observability Admin module by @shawzhan-aws in https://github.com/awslabs/mcp/pull/3496
chore: update code owner for aws transform mcp by @occhangg in https://github.com/awslabs/mcp/pull/3499
docs(aws-transform-mcp-server): add PyPI download badges to README by @occhangg in https://github.com/awslabs/mcp/pull/3523
fix(eks-mcp-server): enforce allow_write check in apply_yaml by @srhsrhsrhsrh in https://github.com/awslabs/mcp/pull/3524
chore: release/2026.05.20260514231351 by @awslabs-mcp in https://github.com/awslabs/mcp/pull/3526

Full Changelog: https://github.com/awslabs/mcp/compare/2026.05.20260512232912...2026.05.20260514231351

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