- Twilio Functions Classic is being retired and all accounts will be auto‑migrated to the new Functions platform.
- Starting Sep 13 2026 new Functions Classic cannot be created; existing ones run and can be edited until migration window Sep 14–Oct 26 2026.
- Migration will move URLs, names, env vars, and code; docs and guides are provided for the transition.
Functions Classic is being deprecated and existing Functions (Classic) are moving to the new Functions
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