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Sep2026

Meltano 4.3.0

Meltano 4.3.0 introduces authenticated access to a curated Meltano Cloud Hub plugin catalog, giving Meltano Cloud users a simpler way to discover and add first-party plugins supported, maintained, and tested by Meltano.

Meltano​

We're excited to announce the release of Meltano 4.3.0! This release introduces Meltano Cloud authentication and a curated Meltano Cloud Hub plugin catalog directly from the Meltano CLI.

Meltano Cloud Authentication​

Meltano Cloud accounts are now used to authenticate access to the curated Meltano Cloud Hub plugin catalog. Meltano Cloud accounts are free, and you don't need a subscription to use the catalog.

To sign in, run:

meltano cloud auth login

This opens your browser, where you can sign in with an existing Meltano Cloud account or create a new one. You can check your authentication status or log out using:

meltano cloud auth status
meltano cloud auth logout

Meltano Cloud Hub​

Meltano Cloud Hub contains plugins that Meltano supports, maintains, and tests. This gives users a curated starting point when choosing plugins for their projects.

When you're authenticated with Meltano Cloud, Meltano Cloud Hub becomes the source of truth for plugins. This applies to the following commands:

  • meltano hub ping
  • meltano hub list
  • meltano add
  • meltano lock

Meltano Hub remains available when you're logged out, so you can continue to explore the full set of publicly available plugins.

Discover and Add Plugins​

The configured Hub plugin catalog can be searched by plugin name and variant, and inspected directly from the CLI:

meltano hub list
meltano hub list github
meltano hub list meltanolabs
meltano hub list --all
meltano hub list --format json
meltano hub list --all --format json
meltano hub list --refresh

When authenticated with Meltano Cloud, Meltano uses the Meltano Cloud Hub plugin catalog to resolve plugin definitions and their default variants. For example:

meltano add tap-github
meltano lock tap-github

Note: Some plugin variants are only available on Meltano Cloud Hub and not Meltano Hub, and vice versa.

Existing Hub Configurations Continue to Work​

The Meltano Cloud Hub plugin catalog is only used when the user is authenticated and no other Hub configuration takes precedence.

Existing projects using a custom Hub or Hub authentication continue to work as before. The Hub configuration precedence is:

  1. hub_api_root
  2. hub_url_auth
  3. Explicit hub_url
  4. Meltano Cloud authentication
  5. Public Meltano Hub

This means logging in to Meltano Cloud does not override an explicitly configured Hub.

Listing Plugins​

Meltano 4.3.0 also provides meltano plugin list for viewing the plugins currently configured in a project:

meltano plugin list
meltano plugin list --format json

The default text output is intended for interactive use, while JSON output can be used for scripting and automation.

Thank You​

Thank you to all the contributors who made this release possible!

For the complete list of changes, see the Meltano 4.3.0 release notes.