The Dolphin release has arrived.

Nano Node V18 glides onto the network

Andy Johnson
Feb 21, 2019 · 3 min read
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With the development work and beta testing now complete, we are excited to release the Dolphin V18 Nano node software on the Nano network. Charged with making the already nimble Nano network even faster, smarter and lighter, Dolphin accomplishes this through a selection of targeted optimizations.

As with all protocol upgrades, the hard work of our community is key to the delivery of high-quality release. So we would like to take a moment to recognize and thank our community team of beta testers, node operators and representative owners who have helped ensure Dolphin is ready to surge onto the network and start making waves.

A strong performer

A smarter node

Cleaner code

Upgrade process

When upgrading a node to Dolphin, there will be automatic upgrades executed in the background. We highly recommend performing a backup of all your node data prior to the upgrade.

Automatic database upgrade

To support key features the update process for existing nodes will involve heavy CPU and IO usage while the database is upgraded and rewrites all block entries in that process (this includes the desktop wallets). This will be done in the background while allowing proper syncing of blocks across the network but will consume a larger amount of system resources during the process.

Due to the database upgrade, any ledger files updated to V18 will no longer be compatible with prior node versions. Please keep this in mind when planning any upgrades and managing any ledger backups.


API change for nano_lib

For a comprehensive list of all of the improvements in Dolphin, check out the Full Changelog on GitHub.

What’s coming next

To keep up with the progress towards our next release, follow the Solidus Milestone Tracker.


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