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

# Breaking changes (Change Notices)

In this section, we'll outline **planned deprecations and breaking changes** that might affect applications using the DeepL API.

To learn about new releases, please see the [Release notes](/docs/resources/release-notes) page.

<Card title="July 2024: Deprecation of insecure cipher suites" href="/docs/resources/breaking-changes-change-notices/july-2024-deprecation-of-insecure-cipher-suites" />

<Card title="March 2025: Deprecating GET requests to /translate and authenticating with auth_key" href="/docs/resources/breaking-changes-change-notices/march-2025-deprecating-get-requests-to-translate-and-authenticating-with-auth_key" />

<Card title="November 2025: Deprecating query parameter and request body authentication" href="/docs/resources/breaking-changes-change-notices/november-2025-deprecation-of-legacy-auth-methods" />