Twilio

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**Messaging**
- Add rejection reason support to WhatsApp API
- Removed status parameter for create and update in WhatsApp Templates API

**Proxy**
- Add FailOnParticipantConflict param to Proxy Session update

**Verify**
- Add `CustomFriendlyName` optional parameter on Verification creation.
- Changes in `Challenge` resource to update documentation of both `details` and `hidden_details` properties.

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**Api**
- Add optional Click Tracking and Scheduling parameters to Create action of Message resource

**Supersim**
- Add callback_url and callback_method parameters to Sim resource update request

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**Library - Feature**
- [PR 528](https://github.com/twilio/twilio-python/pull/528): include API response headers in 'Last Response'. Thanks to [childish-sambino](https://github.com/childish-sambino)!

**Conversations**
- Allow Address updates for Participants
- Message delivery receipts

**Events**
- Add account_sid to subscription and subscribed_events resources

**Flex**
- Changed `wfm_integrations` Flex Configuration key to private **(breaking change)**

**Messaging**
- Add error states to WhatsApp Sender status with failed reason **(breaking change)**
- Delete WhatsApp Template API
- Update WhatsApp Template API
- Add WhatsApp Template Get Api (fetch and read)

**Numbers**
- Add `valid_until` in the Bundles resource
- Add API for Bundle deletion

**Verify**
- Removed support for `sms`, `totp` and `app-push` factor types in Verify push **(breaking change)**

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**Api**
- Added optional `JitterBufferSize` parameter for creating conference participant
- Added optional `label` property for conference participants
- Added optional parameter `caller_id` for creating conference participant endpoint.

**Autopilot**
- Remove Export resource from Autopilot Assistant

**Conversations**
- Expose Conversation timers

**Monitor**
- Update start/end date filter params to support date-or-time format **(breaking change)**

**Numbers**
- Add `provisionally-approved` as a Supporting Document status

**Preview**
- Removed `Authy` resources. **(breaking change)**

**Supersim**
- Add ready state to the allowed transitions in the sim update call behind the feature flag supersim.ready-state.v1

**Verify**
- Webhook resources added to Verify services and put behind the `api.verify.push` beta feature

**Twiml**
- Add more supported locales for the `Gather` verb.

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**Library - Docs**
- [PR 525](https://github.com/twilio/twilio-python/pull/525): link to handling exceptions. Thanks to [thinkingserious](https://github.com/thinkingserious)!
- [PR 524](https://github.com/twilio/twilio-python/pull/524): link to custom HTTP client instructions. Thanks to [thinkingserious](https://github.com/thinkingserious)!

**Library - Fix**
- [PR 523](https://github.com/twilio/twilio-python/pull/523): drop the page limit calculation and correct the page limit stop condition. Thanks to [childish-sambino](https://github.com/childish-sambino)!
- [PR 522](https://github.com/twilio/twilio-python/pull/522): drop passing a page limit when listing/streaming resources. Thanks to [childish-sambino](https://github.com/childish-sambino)!

**Api**
- Added `pstnconnectivity` to `usage_record` API

**Autopilot**
- Add dialogue_sid param to Query list resource

**Notify**
- delivery_callback_url and delivery_callback_enabled added

**Numbers**
- Add `provisionally-approved` as a Bundle status

**Preview**
- `BrandsInformation` endpoint now returns a single `BrandsInformation`
- Deleted phone number required field in the brand phone number endpoint from `kyc-api`
- Removed insights `preview API` from API Definitions **(breaking change)**
- Added `BrandsInformation` endpoint to query brands information stored in KYC

**Supersim**
- Require a Network Access Profile when creating a Fleet **(breaking change)**

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**Api**
- Added `reason_conference_ended` and `call_sid_ending_conference` to Conference read/fetch/update
- Fixed some examples to use the correct "TK" SID prefix for Trunk resources.

**Authy**
- Renamed `twilio_authy_sandbox_mode` headers to `twilio_sandbox_mode` **(breaking change)**
- Renamed `Twilio-Authy-*` headers to `Twilio-Veriry-*` **(breaking change)**

**Flex**
- Adding `flex_service_instance_sid` to Flex Configuration

**Preview**
- Removed insights preview API from API Definitions **(breaking change)**
- Added `Channels` endpoint to brand a phone number for BrandedCalls

**Serverless**
- Add Build Sid to Log results

**Supersim**
- Add Network Access Profile resource Networks subresource
- Allow specifying a Data Limit on Fleets

**Trunking**
- Fixed some examples to use the correct "TK" SID prefix for Trunk resources.