The DNS root rolls to KSK-2024 on October 11 2026, and stale resolvers will drop offline
On October 11 2026 the DNSSEC root Key Signing Key moves from KSK-2017 to key tag 38696 (KSK-2024), and the old key is retired in January 2027. Operators of validating resolvers must confirm tag 38696 is installed before the cutover, or their DNS resolution will fail wholesale with no network symptom.