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Reading between the lines, it seems the v1 protocol was basically a proof of concept implementation and differs in some points from the final RFC specification.
by brazzy 6y ago
Reading between the lines, it seems the v1 protocol was basically a proof of concept implementation and differs in some points from the final RFC specification.
With Letsencrypt being by far the most popular ACME provider, if they kept running the old version even optionally, there would be very little incentive for clients to start supporting the standard instead of the POC.
I can understand how they don't want to be the IE6 of CAs.
- jacquesm 6y agoUnless there was an incurable security issue in the V1 protocol I see no reason to force an upgrade on the part of untold millions of installations.