Twilio Changelog

Twilio Application Connect for Programmable Voice is now Generally Available. We have added an <Application> noun to the existing TwiML <Dial> verb, which allows you to place Voice calls from one TwiML Application to another. This allows you to:

• Connect Voice calls across Twilio accounts, without using a Twilio number or SIP Proxy in-Between.
• Separate complex application flows into smaller, more modular applications.

For more information on Twilio Application Connect, please check out the Usage and TwiML documentation.

In order to provide additional information and transparancy around delivery timing we are adding a new parameter (RawDlrDoneDate) to Delivered and Undelivered status update webhooks for MMS and SMS messages. This parameter is a passthrough of the Done Date included on the DLR (Delivery Receipt) that we receive from our carrier partners. It takes the format of YYMMDDhhmm where:

YY = last two digits of the year (00-99)

MM = month (01-12)

DD = day (01-31)

hh = hour (00-23)

mm = minute (00-59)

Important notes on this data:

The format only includes minute level precision.

• The format does not provide timezone information. In practice, the timezone offset varies between carrier partners and even within the same carrier.
• Because of SMS/MMS signaling intricacies, not all messages will receive a RawDlrDoneDate in the Delivered or Undelivered status. Not all carrier partners offer DLRs and some messages go undelivered before a DLR is available.
• This parameter will also be added to Event Streams in the near future. Integrating with the parameter in event streams will require upgrading to a new schema version.
• The feature will be rolled out gradually. We expect the vast majority of Delivered/Undelivered messages to include the data by the end of February 2023.

It is strongly recommended that you use a Twilio provided signature validation library to verify the provenance of all webhooks arriving at your servers. The specific ordering and parameters included with each webhook depend on a number of factors and will evolve over time; thus it is important to follow the full specification of signature validation. This is already fully implemented and tested in the Twilio provided SDKs.

As of February 9, 2023, access to Twilio Frontline is limited to existing Twilio Frontline customers. Twilio accounts that have added Frontline prior to February 9, 2023 can continue to use Frontline and will be fully supported.

Frontline’s documentation is limited to current Frontline customers while logged in to their Frontline account. For more information, please refer to our support article. For any questions, please contact the Twilio Support team.

This release adds keyboard shortcuts to the Agent Desktop of Flex UI so that agents can perform common actions quickly. This includes accepting and switching between tasks, putting voice calls on hold and mute, and much more. Full details of the available shortcuts see thethe User guide.

Additionally developers can edit the default shortcuts and add custom shortcuts. Details on how to do this are available here.

For full details on the changes included in this version read the release notes.

We're excited to announce that the Twilio Node Helper Library major version 4.x is now available! We've made sure that upgrading to this version is as smooth as possible.

• Migrated source code to TypeScript for a more robust development experience.
• Reduced bundle size by 31% by removing large dependencies, improving performance and reducing memory usage.
• Enabled lazy loading by default for better performance and memory usage.
• Adopted OpenAPI specification.
• Made code generation tool open source for easier SDK contributions.

Note: Currently 4.x is not compatible with Twilio Functions.

If you're curious about the changes, be sure to check out our Upgrade Guide for all the details and instructions on how to upgrade.

The following new Monitor Events have been created for Voice Recording and Transcriptions: recording.accessed and transcription.accessed to track media access and download from API and Twilio Console of media files and transcriptions. These new events are available in the Twilio Console and in the Audit Event/Monitor Event API. Monitor Events are a Twilio platform feature that provides comprehensive event-logging and change-tracking for Twilio resources.

With this release, developers can improve audit of their voice applications and have granular visibility on recordings and transcriptions to contribute to their security and compliance requirements.

See full list of all supported resource-types and event-types for additional information.

Customers who are looking to provision IPsec VPN or Third Party Exchange connections can now provision them directly in Console without going through sales or support.

To get started, navigate to Interconnect > Connections in the sidebar of your Twilio Console.

Learn more about Twilio Interconnect on our website or docs.

Twilio has updated its Text-To-Speech offering adding support for new Amazon Polly Neural Voices. This release includes the following new voices and languages: Hala-Neural (ar-AE), Suvi-Neural (fi-FI), Ida-Neural (nb-NO), Laura-Neural (nl-NL), Ola-Neural (pl-PL), Elin-Neural (sv-SE), Hiujin-Neural (zh-HK), Zhiyu-Neural (zh-CN).

Try new enhanced voices in your IVR applications by selecting them in the Text-to-Speech section of the Twilio Console, by setting them in your TwiML <Say> attributes or using Studio <Say> Widget. For more information on the voices and on pricing, please visit Twilio Text-to-Speech docs.

On Thursday, January 12th, 2023 at 9:00am PST, Twilio’s request to the webhook URL configured for a phone number will no longer contain the ReferralNumMedia property for SMS and MMS messages. This parameter is only relevant for WhatsApp messages generated from Meta’s “Click-to-WhatsApp” ads. It was previously incorrectly added to all messages, but will only be returned on WhatsApp messages going forward.

Twilio recommends that customers validate Twilio’s requests to their webhook URL by following this guide, making sure to pass all parameters sent to the webhook URL without filtering to the validateRequest call. Twilio strongly discourages validating based on the presence (or absence) of certain parameters.

Update: This is now completed. SMS and MMS messages will no longer have the ReferralNumMedia property sent to the SMS Webhook URL.

Full HD streaming is now Generally Available as part of Twilio Live. Twilio Live’s VideoComposer extension has been updated to include the new resolution.

You can now enhance your streaming quality and improve your audience experience by setting the video resolution on your livestreams up to 1080p (1920x1080). There is no additional cost for streaming at a higher resolution.

For additional information on this release, check out our developer documentation.