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stacks-puppet-node/release_notes/changelog-20.md
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What's New in 20

Release 20 is a consensus-breaking release that introduces the first version of the Stacks blockchain. Versions 19 and prior are incompatible with this release and will diverge from v20 nodes.

Release Highlights

Native Stacks Token. This release completes the first version of the Stacks blockchain. Details can be found on this forum post.

Blockstack Accounts API. This release adds /v1/accounts endpoints to the RESTful API for querying account balances and transaction histories. Please see the relevant documentation for details.

Getting Started

The recommended way to get started with v20 is through its fast-sync mode. To migrate from a v19 node to a v20 node, we recommend the following steps:

# stop the old node
$ blockstack-core stop
$ mv ~/.blockstack-server ~/.blockstack-server.19

# start the new node
$ blockstack-core fast_sync
$ blockstack-core start

The old chain state database directory structure has changed, and is incompatible with this new release. If you are upgrading from a v19 node or older, you will need to remove your .blockstack-server directory.