---
title: "Upcoming changes for users of Dart packages"
description: "To ensure that Cloudsmith continues to provide a consistent and secure experience for users of Dart packages, from February 28th 2025 Cloudsmith will only support Dart SDK version 2.15 or greater. After this date, support for older versions of the Dart SDK will be dropped."
canonical_url: "https://cloudsmith.com/changelog/upcoming-changes-for-users-of-dart-packages"
last_updated: "2025-02-19T12:00:00.000Z"
---
# Upcoming changes for users of Dart packages

To ensure that Cloudsmith continues to provide a consistent and secure experience for users of Dart packages, from** February 28th 2025 **Cloudsmith will only support Dart SDK version **2.15 or greater**. After this date, support for older versions of the Dart SDK will be dropped.

This change is being introduced as the **dart pub token** command, which provides support for token based authentication, is only available in Dart SDK from version 2.15 onwards. This provides a more secure and standardised way to authenticate requests to private package repositories. Earlier versions of the SDK rely on **PUB_HOSTED_URL **which requires embedding credentials in environment variables or URLs, leading to security and usability concerns.

See [Dart Repository](https://help.cloudsmith.io/docs/dart-repository) for more information.