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release-notes-18.2.0.md

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Dash Core version v18.2.0

Release is now available from:

https://www.dash.org/downloads/#wallets

This is a new minor version release, bringing new features, various bugfixes and other improvements.

This release is optional for all nodes.

Please report bugs using the issue tracker at github:

https://github.com/dashpay/dash/issues

Upgrading and downgrading

How to Upgrade

If you are running an older version, shut it down. Wait until it has completely shut down (which might take a few minutes for older versions), then run the installer (on Windows) or just copy over /Applications/Dash-Qt (on Mac) or dashd/dash-qt (on Linux). If you upgrade after DIP0003 activation and you were using version < 0.13 you will have to reindex (start with -reindex-chainstate or -reindex) to make sure your wallet has all the new data synced. Upgrading from version 0.13 should not require any additional actions.

When upgrading from a version prior to 18.0.1, the first startup of Dash Core will run a migration process which can take anywhere from a few minutes to thirty minutes to finish. After the migration, a downgrade to an older version is only possible with a reindex (or reindex-chainstate).

Downgrade warning

Downgrade to a version < v18.2.0

Downgrading to a version older than v18.2.0 is supported.

Downgrade to a version < v18.0.1

Downgrading to a version older than v18.0.1 is not supported due to changes in the indexes database folder. If you need to use an older version, you must either reindex or re-sync the whole chain.

Downgrade of masternodes to < v18.0.1

Starting with the 0.16 release, masternodes verify the protocol version of other masternodes. This results in PoSe punishment/banning for outdated masternodes, so downgrading even prior to the activation of the introduced hard-fork changes is not recommended.

Versioning

Dash Core imperfectly follows semantic versioning. Breaking changes should be expected in a major release. The number and severity of breaking changes in minor releases are minimized, however we do not guarantee there are no breaking changes. Bitcoin backports often introduce breaking changes, and are a likely source of breaking changes in minor releases. Patch releases should never contain breaking changes.

This release does include breaking changes. Please read below to see if they will affect you.

Notable changes

Remote Procedure Call (RPC) Changes

The new RPCs are:

  • analyzepsbt examines a PSBT and provides information about what the PSBT contains and the next steps that need to be taken in order to complete the transaction. For each input of a PSBT, analyzepsbt provides information about what information is missing for that input, including whether a UTXO needs to be provided, what pubkeys still need to be provided, which scripts need to be provided, and what signatures are still needed. Every input will also list which role is needed to complete that input, and analyzepsbt will also list the next role in general needed to complete the PSBT. analyzepsbt will also provide the estimated fee rate and estimated virtual size of the completed transaction if it has enough information to do so.
  • quorum listextended is the cousin of quorum list with a more enriched reply. By using the height parameter, the RPC will list active quorums at a specified height (or at the tip if height is not specified). This RPC returns the following data per quorum grouped per llmqTypes:
    • For each quorumHash:
      • creationHeight: Block height where its DKG started
      • quorumIndex: Returned only for rotated llmqTypes
      • minedBlockHash: Hash of the block containing the mined final commitment
      • numValidMembers: The total of valid members.
      • healthRatio: The ratio of healthy members to quorum size. Range [0.0 - 1.0].
  • getbalances returns an object with all balances (mine, untrusted_pending and immature). Please refer to the RPC help of getbalances for details. The new RPC is intended to replace getunconfirmedbalance and the balance fields in getwalletinfo, as well as getbalance. The old calls may be removed in a future version.

The removed RPCs are:

None

Changes in existing RPCs introduced through bitcoin backports:

  • walletprocesspsbt and walletcreatefundedpsbt now include BIP 32 derivation paths by default for public keys if we know them. This can be disabled by setting bip32derivs to false.

Dash-specific changes in existing RPCs:

None

Please check help <command> for more detailed information on specific RPCs.

Command-line options

Please check Help -> Command-line options in Qt wallet or dashd --help for more information.

Backports from Bitcoin Core

This release introduces many hundreds updates from Bitcoin v0.18/v0.19/v0.20/v0.21/v22. Bitcoin changes that do not align with Dash’s product needs, such as SegWit and RBF, are excluded from our backporting. For additional detail on what’s included in Bitcoin, please refer to their release notes.

v18.2.0 Change log

See detailed set of changes.

Credits

Thanks to everyone who directly contributed to this release:

  • Kittywhiskers Van Gogh
  • Konstantin Akimov
  • Odysseas Gabrielides
  • PastaPastaPasta
  • strophy
  • thephez
  • UdjinM6

As well as everyone that submitted issues, reviewed pull requests, helped debug the release candidates, and write DIPs that were implemented in this release.

Older releases

Dash was previously known as Darkcoin.

Darkcoin tree 0.8.x was a fork of Litecoin tree 0.8, original name was XCoin which was first released on Jan/18/2014.

Darkcoin tree 0.9.x was the open source implementation of masternodes based on the 0.8.x tree and was first released on Mar/13/2014.

Darkcoin tree 0.10.x used to be the closed source implementation of Darksend which was released open source on Sep/25/2014.

Dash Core tree 0.11.x was a fork of Bitcoin Core tree 0.9, Darkcoin was rebranded to Dash.

Dash Core tree 0.12.0.x was a fork of Bitcoin Core tree 0.10.

Dash Core tree 0.12.1.x was a fork of Bitcoin Core tree 0.12.

These release are considered obsolete. Old release notes can be found here: