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Understand curl 8.22's 25 ms Happy Eyeballs v3 resolution delay and run a controlled IPv4/IPv6 proxy regression test before upgrading.

Test curl 8.22 shared connection-pool limits with proxy workloads, including per-host caps, total caps, queueing, reuse and failure recovery.

Test curl 8.22 proxy CONNECT trailer handling with a controlled matrix for parsing, authentication, tunnel integrity, retries, and observability.

curl 8.22.0 now detects proxy endpoint changes sourced from environment variables and clears cached proxy Digest state. Learn who is affected and how to test an upgrade.

Cloudflare One Appliance can now classify custom applications by source subnet. Learn what proxy, scraping and verification teams must retest.

CVE-2026-82209 could broaden a cookie to sibling domains in a narrow libcurl PSL case. Audit proxy collectors, cookie jars and redirects safely.

CVE-2026-82208 affects a narrow libcurl wolfSSL trust-store callback path. Learn the exact scope, upgrade priority and safe validation plan.

curl 8.22 fixes an authenticated connection-reuse flaw. Learn the exact scope and how proxy automation teams should inventory, upgrade and validate shared clients.

AWS and Microsoft announced private multicloud connectivity. Learn which proxy routes, encryption boundaries, DNS and failover controls still require verification.

AWS explains monitor and enforce modes for VPC Encryption Controls. Learn what proxy egress teams should verify inside the VPC and beyond its boundary.