diff --git a/changelog.mdx b/changelog.mdx
index 80de44a..95835fe 100644
--- a/changelog.mdx
+++ b/changelog.mdx
@@ -4,23 +4,33 @@ sidebarTitle: "Changelog"
description: "New features, improvements, and fixes every few days"
---
-# October 9 to October 10, 2024
+# October 10 to October 13, 2024
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+1. **New Call Transfer Modes Added**: you can now wait for an operator to speak first before providing a transfer message or summary when transferring calls to a new destination with `TransferPlan`. Configure this through *transferPlan.mode=`'warm-transfer-wait-for-operator-to-speak-first-and-then-say-message'`* or `*transferPlan.mode=`'warm-transfer-wait-for-operator-to-speak-first-and-then-say-summary'`* inside the request body of `POST /assistant` or `PATCH /assistant`.
-1. **Purchase Reserved Concurrency and Scale Infinitely**: You can now reserve more concurrent calls with Vapi and scale infinitely by switching to our new top up payment system on the [billing page](https://dashboard.vapi.ai/org/billing). To migrate, click "Switch to Credit Based Billing" and make a payment. Advantages include:
+2. **Unified Server Configuration in Assistants**: You can now use the `server` property in `Assistant.server`, `AssistantOverrides.server`, and when creating or updating assistants to specify webhook settings, including URL, secret, custom headers, and timeout. This replaces the old `serverUrl` and `serverUrlSecret` properties of `Assistant`.
- - **Support More Users Without Limits**: You don't need to worry about getting throttled or staying under usage limits on the conversations you can have with Vapi.
- - **Predictable Budgets**: You know exactly how much you will spend on Vapi each month, and you can top up at any time as your needs grow.
- - **Select Add-Ons You Need**: The credit based billing page allows you to select HIPAA compliance, dedicated Slack support, and the maximum number of concurrent calls you expect.
+ Include custom headers in your webhook requests by using the `headers` property within the `server` object when creating or updating assistants.
+
+3. **Configure PlayHT Voice Engines**: You can now configure which PlayHT voice `model` generates voices for your application between `PlayHT2.0`, `PlayHT2.0-turbo`, and `Play3.0-mini`.
-This will require human input to login and migrate your account. You will not be able to revert back to the old billing system.
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+ 1. **Purchase Reserved Concurrency and Scale Infinitely**: You can now reserve more concurrent calls with Vapi and scale infinitely by switching to our new top up payment system on the [billing page](https://dashboard.vapi.ai/org/billing). To migrate, click "Switch to Credit Based Billing" and make a payment. Advantages include:
+
+ - **Support More Users Without Limits**: You don't need to worry about getting throttled or staying under usage limits on the conversations you can have with Vapi.
+ - **Predictable Budgets**: You know exactly how much you will spend on Vapi each month, and you can top up at any time as your needs grow.
+ - **Select Add-Ons You Need**: The credit based billing page allows you to select HIPAA compliance, dedicated Slack support, and the maximum number of concurrent calls you expect.
+
+ This will require human input to login and migrate your account. You will not be able to revert back to the old billing system.
+
1. **Call Cost Information**: You can now use `call.costs[type=vapi].subType` to determine if a VAPI cost is `normal` or an `overage`.