Faster Public API polling
Added
Changed
Added
GET /v1/{phone_number_id}/conversationsaccepts optionalupdated_since(ISO 8601) — returns only rows withupdated_atstrictly after the timestamp.- List responses include a weak
ETagheader. Send it back asIf-None-Matchon the next poll to receive304 Not Modifiedwhen the page is unchanged. - Short-lived Redis cache (8 s TTL, invalidated on conversation writes) for repeated identical list queries.
GET /v1/{phone_number_id}/messages/{id}— short-lived Redis cache (5–60 s TTL by status, invalidated on status transitions) and weakETag/304 Not Modifiedfor high-frequency status polls. No request changes required — existing pollers benefit automatically.
Changed
- Business plan orgs now map to the Business HTTP API tier
(1 200 write/min, 12 000 read/min on
/v1/*). Previously the plan name fell through to the Starter/default bucket (600 read/min). This does not change Send Rate Limit (quota.messages_per_second) — that quota remains whatever you set under Admin → Plans → Entitlements.
See Polling list endpoints for integration recipes.