Changelog

The Twilio Voice React Native SDK now supports Expo, the framework most new React Native apps start from.

Twilio Studio now includes two widgets for working with Twilio Profiles directly from a flow: Resolve Profile and Create or Update Profile.

Starting September 30, 2026, the Conference list endpoint (GET /2010-04-01/Accounts/{AccountSid}/Conferences.json) will default to returning only in-progress conferences.

Starting October 22, 2026, Twilio Real-Time Transcriptions automatically starts transcription sessions on a second speech provider when a customer's primary provider doesn't connect. Failover is enabled for all existing accounts on that date and routes only within a customer's existing region; it can be opted out per sub-account in Console.

The Verification Attempt DLR event type will be discontinued after September 22, 2026 at 10:00PM UTC, after which Twilio may stop sending new events for it even to existing subscribers. Other event types in your subscriptions are unaffected.

Twilio will begin migrating accounts to an updated Voice Recording Storage billing system.

Twilio will enter a Heightened Awareness Period from November 19, 2026 through January 4, 2027, monitoring and potentially limiting US message sending rates at the account level for toll-free, short code, and 10DLC numbers. High-volume short code and toll-free senders may be temporarily migrated to Market Throughput, with affected accounts notified by email.

Twilio's integration with Salesforce Service Cloud Voice now supports WhatsApp and SMS alongside Voice, routing messaging conversations through Twilio TaskRouter into the Salesforce Omni-Channel widget with the same presence, skills, and capacity model. Agents can handle messaging and voice concurrently in a single console, with presence synchronized across all channels on work acceptance.

Starting September 15, 2026, privacy_policy_url and terms_and_conditions_url become required on all new Toll-Free verification submissions, and submissions missing either URL will be rejected. Existing verified numbers are unaffected, with support for adding the fields to existing verifications planned for late 2026 or early 2027.

ElevenLabs voices for TwiML Say are now available in public beta, powered by Flash v2 and Flash v2.5 models. Enable via the REST API or a TwiML Bin.

Customers can now configure per-URL webhook authentication and delivery via the Webhook Configuration API, with OAuth 2.0 client credentials flow or Shared Key signatures for securing endpoints, plus configurable timeouts and retries.

Twilio Verify Custom Templates are now generally available, enabling custom SMS/RCS and Voice message templates beyond standard defaults or pre-approved options.

The Java Helper Library now ignores unknown fields in all response objects, fixing deserialization crashes on nested response types. Versions 10.0.0 through 12.1.1 fail with ApiConnectionException when an API response includes an unrecognized field.

SendGrid now offers automatic SSL certificate provisioning as a toggle in the standard link branding setup flow, removing the need to purchase and maintain certificates through an external CDN or DNS provider. The Link Branding API adds an auto_ssl parameter set at creation time, which returns additional DNS records and reports certificate status via auto_ssl_available; Gmail is set to warn on non-HTTPS links by end of October 2026.

Effective August 19, 2026, Twilio Verify changes the default Geo Permissions setting for Italy and Argentina from "Allow all traffic" to "Monitor all traffic for fraud" on all accounts still using the default state. Existing custom configurations are unaffected; Fraud Guard must be enabled for the monitoring protection to apply.

Customers can now send WhatsApp Content Templates to many recipients at once via the Bulk Messaging API, with per-recipient personalization. Configurable fallback now also supports WhatsApp to SMS and RCS to WhatsApp strategies.

Twilio is retiring Functions Classic and automatically migrating all accounts to the new Functions, with no action required from customers. New Functions (Classic) creation stops September 13, 2026, and migration of existing functions, URLs, environment variables, and code runs between September 14 and October 26, 2026.

Customers can now use the Consent Management API to programmatically re-opt-in users on US and Canada toll-free numbers, bypassing the previous requirement that opt-outs could only be lifted via an opt-in keyword text. This eliminates 21610 (Unsubscribed Recipient) and 30004 (Message Blocked) errors for re-consented users.

Twilio will rotate the end-user TLS certificate for all REST API endpoints on September 9, 2026, renewing the certificate and its serial number while root and intermediate certificates remain unchanged. Customers using Twilio Helper Libraries need no action; those pinning certificates should test against https://tls-test.twilio.com starting August 12, 2026.