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Notepad++ 8.9.7

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8.9.6.4β†’8.9.7SecurityBug fix
πŸ“… July 14, 2026πŸ—‚ UtilitiesπŸ“¦ Notepad++ β†—πŸ“œ Full changelog β†—
✦ Editor's summary

Notepad++ 8.9.7 is a security-focused maintenance release that fixes a critical stack buffer overflow vulnerability and addresses several reliability issues. The update improves application security, stability, and overall robustness, and is recommended for all users.

⚠ Security impact
  • Fixed a stack buffer overflow vulnerability in expandNppEnvironmentStrs().
  • Improved application resilience against malformed environment variable expansion.
  • Users are strongly encouraged to upgrade to version 8.9.7 to address the security issue.

What's new

  • Updated Notepad++ to version 8.9.7.
  • Fixed a stack buffer overflow vulnerability in expandNppEnvironmentStrs().
  • Improved application security and robustness.
  • Resolved additional stability and maintenance issues.
  • Enhanced overall reliability and user experience.
  • Recommended update for all Notepad++ users.
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Notepad++ 8.9.8Aug 24, 2026
Notepad++ 8.9.6.4SecurityBug fixJun 3, 2026
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