Planning the retirement of TLS 1.0

Removing TLS 1.0 is a client and integration migration as well as a server configuration change. Payment requirements provide a deadline, but the service still needs evidence about affected callers.

Observe negotiated protocols

Collect TLS version, cipher and client category at the edge without storing unnecessary identifiers. Separate public browsers from payment callbacks, monitoring agents, Java clients and managed devices.

Contact integration owners

Map remaining TLS 1.0 traffic to a service and owner, then provide a test endpoint that requires TLS 1.2. Do not retain the old protocol indefinitely for requests that nobody can identify.

Disable in controlled stages

Change lower environments and secondary endpoints first, monitor handshake failures, then remove TLS 1.0 at the production edge with a time-bound rollback. Retest certificate chains and supported cipher suites at the same boundary.