Google today announced the latest Chrome quantum security upgrade

*Challenges: Quantum certificates have increased in size by 40 times (2.5KB vs 64B), dragging down TLS performance.
*Solution: Merkle Tree Certificates (MTCs) replaced with lightweight proofs.
*Progress: Tested 1000 certificates with Cloudflare, full rollout of quantum-resistant trust storage starting in 2027!
Meanwhile, let's look at the progress of other tech giants' quantum security upgrades
As of March 2026:
Apple: iOS/macOS 26 defaults to X25519MLKEM768 hybrid TLS, PQ3 for iMessage has been completed. Full deployment.
Microsoft: Edge defaults to PQC key exchange; Azure testing underway.
Amazon AWS: Multi-service ML-KEM hybrid TLS for KMS/S3 and others. Several completions.
Cloudflare: Fully ready for PQC across all platforms. Upgrade complete.
Mozilla: Firefox defaults to PQC key exchange. Completed.
GitHub: SSH git access with sntrup761x25519-sha512 hybrid key. Upgrade complete (no HTTPS certificates yet).
Why are the giants in such a hurry?
Because the U.S. Department of Commerce has a deadline for algorithm upgrades, likely around 2030 and 2035. The significance is that if you don't upgrade, you can't do business with the U.S. or be part of critical infrastructure. The same applies to the crypto world—if upgrades aren't completed, institutional funds will be hard to enter (including pensions and sovereign funds). Don’t listen to the talkers who try to fool you!
So, brothers, the crypto industry’s quantum security upgrade is indeed quite rare. I remember Vitalik first proposed the quantum upgrade back in 2022 or even earlier. The latest roadmap pushes it to 2029, so what our industry faces next is really uncertain!
😂 Better not get too inflated about this mindset