---
title: 0.52.0 March 2025
---

import { LinkCard } from "@astrojs/starlight/components";

:::caution
TypeSpec core contains deprecations
:::

<LinkCard
  title="TypeSpec Core 0.66"
  description="See changes to the TypeSpec language and core libraries"
  href="https://typespec.io/docs/release-notes/release-2025-03-04"
/>

## Features

### @azure-tools/typespec-autorest

- [#2257](https://github.com/Azure/typespec-azure/pull/2257) Adds support for `@header` explode field
- [#2263](https://github.com/Azure/typespec-azure/pull/2263) Update azure core libraries to use Enum-based visibility modifiers instead of strings.

### @azure-tools/typespec-azure-core

- [#2263](https://github.com/Azure/typespec-azure/pull/2263) Update azure core libraries to use Enum-based visibility modifiers instead of strings.

### @azure-tools/typespec-azure-resource-manager

- [#2263](https://github.com/Azure/typespec-azure/pull/2263) Update azure core libraries to use Enum-based visibility modifiers instead of strings.

### @azure-tools/typespec-client-generator-core

- [#2257](https://github.com/Azure/typespec-azure/pull/2257) Adds support for `@header` explode field
- [#2263](https://github.com/Azure/typespec-azure/pull/2263) Update azure core libraries to use Enum-based visibility modifiers instead of strings.

## Bug Fixes

### @azure-tools/typespec-client-generator-core

- [#2208](https://github.com/Azure/typespec-azure/pull/2208) Make sure to keep orphan models
