Teleport 18.9.0

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Teleport·2 months ago · Jun 18, 2026, 12:19 AMFixSecurity-relevantAI-assisted summary

Summary

Added Device Bound Session Credentials for application access cookies, improving protection against session hijacking and cookie theft (security).
Enabled high DPI mode for Windows remote desktop sessions and introduced Sub‑CA support for Windows Desktop and Database client CAs (new features).
Improved auth service performance for large MFA‑enabled app fleets, added clearer "client too old" errors for legacy agents, and fixed various resolution and resource‑usage issues (bugfixes and optimizations).

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