Twilio

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- Add v2 of chat.twilio.com.
- Add `recording_channels` parameter to Participant create and update.
- Add `recording_status_callback` parameter to Participant create and update.
- Add `recording_status_callback_method` parameter to Participant create and update.
- Add `sip_auth_username` parameter to Participant create and update.
- Add `region` parameter to Participant create and update.
- Add `conference_recording_status_callback` parameter to Participant create and update.
- Add `conference_recording_status_callback_method` parameter to Participant create and update.
- Add `validity_period` parameter to Messages.

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**New Major Version**

The newest version of the `twilio-python` helper library!

This version brings a host of changes to update and modernize the `twilio-python` helper library. It is auto-generated to produce a more consistent and correct product.

- [Full API Documentation](https://twilio.github.io/twilio-python/)
- [General Documentation](https://www.twilio.com/docs/libraries/python)

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Released May 19, 2015:

- Add support for the beta field to IncomingPhoneNumbers and AvailablePhoneNumbers

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Released May 14, 2015:

- Add support for Call Status Events in TwiML

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Released May 7, 2015:

- Add support for the Twilio Monitor APIs: Events and Alerts

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Released May 6, 2015:

- Add support for the Twilio Pricing API