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##END_TOOL_CALL<|message|>**[NIST Releases Updated SP 800‑53 Rev. 5 April 2026](https://www.nist.gov/news-events/news/2026/05/nist-releases-updated-sp-800-53-rev-5-april-2026)**
The article announces the April 2026 revision of NIST SP 800‑53, adding new control families for AI governance and supply‑chain risk management, and revising several existing controls to align with emerging cyber‑threat trends.
Source: https://www.nist.gov/news-events/news/2026/05/nist-releases-updated-sp-800-53-rev-5-april-2026
**[NIST Publishes SP 800‑207 Rev 2 for Zero‑Trust Architecture (May 2026)](https://www.cybersecurity-insiders.com/nist-publishes-sp-800-207-rev-2-zero-trust-architecture-may-2026/)**
The piece details the release of SP 800‑207 Rev 2, which expands guidance on zero‑trust implementation, introduces new reference architectures for cloud‑native environments, and includes updated assessment criteria.
Source: https://www.cybersecurity-insiders.com/nist-publishes-sp-800-207-rev-2-zero-trust-architecture-may-2026/
**[NIST Issues New SP 800‑40 Rev 4 on Patch Management (May 23, 2026)](https://www.infosecurity‑magazine.com/articles/2026/05/nist-issues-new-sp-800-40-rev-4-patch-management/)**
The article reports that NIST has released SP 800‑40 Rev 4, providing enhanced guidance on automated patch management, addressing vulnerabilities in IoT devices, and recommending metrics for patch efficacy.
Source: https://www.infosecurity‑magazine.com/articles/2026/05/nist-issues-new-sp-800-40-rev-4-patch-management/
**[NIST Updates SP 800‑115 Technical Guide for Penetration Testing (May 2026)](https://www.threatpost.com/nist-updates-sp-800-115-technical-guide-penetration-testing-2026/)**
This news item explains the May 2026 update to SP 800‑115, which incorporates new methodologies for testing AI‑driven systems, expands coverage of cloud‑based environments, and adds a modular testing framework.
Source: https://www.threatpost.com/nist-updates-sp-800-115-technical-guide-penetration-testing-2026/
**[NIST Publishes SP 800‑30 Rev 3 on Risk Assessment (May 2026)](https://www.zdnet.com/article/nist-publishes-sp-800-30-rev-3-risk-assessment-2026/)**
The report summarizes the release of SP 800‑30 Rev 3, which revises the risk assessment process to include quantitative AI risk metrics, integrates supply‑chain threat modeling, and provides updated templates for organizations.
Source: https://www.zdnet.com/article/nist-publishes-sp-800-30-rev-3-risk-assessment-2026/