> ## Documentation Index
> Fetch the complete documentation index at: https://kero.chat/help/llms.txt
> Use this file to discover all available pages before exploring further.

# Change History

> Changes to the Kero API and significant documentation updates.

This page highlights changes to the API and significant documentation updates.

## July 2026

* Added the `channel` and `userId` properties to the [reply webhook payload](https://kero.chat/help/kero-developer-pages/webhooks.md#reply-notifications).

## May 2026

* Added a new optional property called `isMarketing` to [message submit](https://kero.chat/help/kero-developer-pages/agent-api.md#message-submit) and to [batch create](https://kero.chat/help/kero-developer-pages/basic-api.md#batch-create).

## March 2026

* Added the *new field* reminder (rule 5) to the [Webhook implementation rules](https://kero.chat/help/kero-developer-pages/webhooks.md#specific-rules).
* New [API rules](https://kero.chat/help/kero-developer-pages/basic-api.md#api-usage-rules) on the Basic API page.

## February 2026 (Version 0.11)

* Clarified that `sms` can now be the only field in the [message content](https://kero.chat/help/kero-developer-pages/object-schemas.md#message-content).
* The [brand agent list](https://kero.chat/help/kero-developer-pages/basic-api.md#brand-agent-list) now has support for the SMS provider.
* Removed fallback config read endpoint and reference to old style fallback.
* Added the new style fallback - describe the fallback chain on the [message content](https://kero.chat/help/kero-developer-pages/object-schemas.md#message-content) section.

## December 2025

* Added replies to [webhooks](https://kero.chat/help/kero-developer-pages/webhooks.md).

## September 2025

* Added a WhatsApp example on the [walkthrough](https://kero.chat/help/kero-developer-pages/walkthrough.md#send-text).

## July 2025 (Version 0.10)

* Added support for `smsSenderId` on
  [templates](https://kero.chat/help/kero-developer-pages/basic-api.md#message-template-create),
  [batches](https://kero.chat/help/kero-developer-pages/basic-api.md#batch-create) and the
  [agent API](https://kero.chat/help/kero-developer-pages/agent-api.md#message-submit).

## January 2025

* Updated the API URL to `https://api.kero.chat/rbm`.
* Removed the *fallback config update* API endpoint.
* A new page for [webhook](https://kero.chat/help/kero-developer-pages/webhooks.md) integrators.

## September 2024 (Version 0.9)

Added batch based campaigns:

* Specify `campaignName` on [batch create](https://kero.chat/help/kero-developer-pages/basic-api.md#batch-create).
* New endpoints for campaigns on the [basic API](https://kero.chat/help/kero-developer-pages/basic-api.md#campaign-query).

Added WhatsApp brand agents:

* The response on [brand agent list](https://kero.chat/help/kero-developer-pages/basic-api.md#brand-agent-list) now contains
  a `providerType`.
* When creating [message content](https://kero.chat/help/kero-developer-pages/object-schemas.md#message-content) you can
  specify a WhatsApp message in the `wa` property. See
  [this page](https://developers.facebook.com/docs/whatsapp/conversation-types)
  for more information about WhatsApp messages.

Better auto references for batches:

* When using `auto` on [create batch](https://kero.chat/help/kero-developer-pages/basic-api.md#batch-create) the `userRef`
  of every batched message now contains a sequence number.

## July 2024 (version 0.8)

Added optional `agentId` to `POST /basic/template`.

Simplified batch processing:

* Specify the `agentId` on [create batch](https://kero.chat/help/kero-developer-pages/basic-api.md#batch-create).
* Deprecated `PUT /basic/batch/:batch_id/submit` in favour of
  `GET /basic/batch/:batch_id/submit` for
  [submit batch](https://kero.chat/help/kero-developer-pages/basic-api.md#batch-submit).


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