Now Available: Meltano v1.39.1

Today, we are excited to release Meltano version 1.39.1, which (among other things) adds various new settings that make it easier to customize Meltano UI and configure it for production:

To learn more about configuring Meltano UI for production, check out the brand new documentation

Excited to try it out?

To upgrade Meltano and your Meltano project to the latest version, navigate to your project directory, activate the appropriate virtual environment, and run meltano upgrade. This will upgrade the meltano package and apply any necessary changes to your project.

What else is new?

The list below (copied from the changelog) covers all of the changes made to Meltano since the release of v1.39.0 on July 8:


  • #2141 Add ui.session_cookie_domain setting, to be used instead of ui.server_name when hostname matching is not desirable.
  • #2142 Let discovery.yml manifest URL be overwritten using discovery_url setting.
  • #2083 Add ui.anonymous_readonly setting to allow anonymous users read-only access when ui.authentication is enabled.
  • #2108 Show icon with tooltip in UI when read-only mode is enabled
  • #2120 Add ui.logo_url setting to allow the customization of the logo shown in the top left of the Meltano UI interface.


  • #2140 Only have meltano ui complain about missing ui.server_name, ui.secret_key and ui.password_salt settings when ui.authentication is enabled
  • #2083 Stop allowing anonymous users read-only access when ui.authentication and ui.readonly are both enabled.


  • #2151 Fix meltano ui never printing Meltano UI is now available at [URL] if ui.server_name is set
  • #2152 Fix meltano ui printing all gunicorn.error logs twice


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