Now Available: Meltano v1.57.0

Today, we are excited to release Meltano version 1.57.0, which (among other things) adds out-of-the-box support for the PostgreSQL and MySQL/MariaDB data sources using the transferwise (aka PipelineWise) variants of tap-postgres and tap-mysql.

It also adds support for the datamill-co and transferwise variants of target-postgres, with the datamill-co variant now the default, while the original meltano variant remains supported.

Finally, special thanks go out to Nil for contributing support for the ReCharge data source and cleaning up discovery.yml!

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 v1.56.0 on November 2:


  • #2368 Add datamill-co variant of target-postgres
  • #2368 Add transferwise variant of target-postgres
  • #2404 Add singer-io variant of tap-recharge
  • #2410 Add transferwise variant of tap-postgres
  • #2411 Add transferwise variant of tap-mysql
  • #2407 Refactor discovery.yaml to keep things in lexicographically ascending order and in correct format
  • #2435 Add new stringify setting value_post_processor that will convert values to their JSON string representation
  • #2437 Add meltano invoke --dump option with possible values config and catalog (for extractors) to dump content of plugin-specific generated file


  • #2368 Make datamill-co variant of target-postgres the default instead of meltano


You haven’t seen nothing yet!

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