2023-06-16 00:11:06 +02:00
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# Dash Core version v19.2.0
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Release is now available from:
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<https://www.dash.org/downloads/#wallets>
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This is a new minor version release, bringing various bugfixes and other
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improvements.
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This release is mandatory for all nodes. This release resolves issues around the
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v19 Hard Fork activation. All nodes must upgrade to continue syncing properly.
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Please report bugs using the issue tracker at GitHub:
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<https://github.com/dashpay/dash/issues>
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# Upgrading and downgrading
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## How to Upgrade
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If you are running an older version, shut it down. Wait until it has completely
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shut down (which might take a few minutes for older versions), then run the
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installer (on Windows) or just copy over /Applications/Dash-Qt (on Mac) or
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dashd/dash-qt (on Linux). If you upgrade after DIP0003 activation and you were
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using version < 0.13 you will have to reindex (start with -reindex-chainstate
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or -reindex) to make sure your wallet has all the new data synced. Upgrading
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from version 0.13 should not require any additional actions.
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At the first startup Dash Core will run a migration process which can take
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anywhere from a few minutes to thirty minutes to finish. After the migration,
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a downgrade to an older version is only possible with a reindex.
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Please note that seamless migration is only possible on nodes which did not
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reach the v19 fork block. Nodes that reached it can either rewind a couple
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of blocks back to a pre-v19 block using `invalidateblock` RPC while still
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running the old version or they can reindex instead.
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## Downgrade warning
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### Downgrade to a version < v19.2.0
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Downgrading to a version older than v19.2.0 is not supported due to changes
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in the evodb database. If you need to use an older version, you must either
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reindex or re-sync the whole chain.
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# Notable changes
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## Resolve v19 Hard Fork Issues
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One of the goals for the v19 Hard Fork was to activate basic BLS scheme and
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start using it in various on-chain and p2p messages. The motivation behind this
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change is the need to be aligned with IETF standards. Unfortunately, a few edge
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cases were missed in our functional tests and were not caught on testnet either.
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v19 activation attempt on mainnet hit one of these edge cases and mainnet
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stopped producing blocks. As an intermediate solution v19.1.0 was released which
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delayed the start of the signaling for the v19 Hard Fork until June 14th.
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To resolve these issues we had to rework the way BLS public keys are handled
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including the way they are serialized in the internal database. This made it
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incompatible with older versions of Dash Core, so a db migration path was
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implemented for all recent versions.
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## Improve migration and historical data support on light clients
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As a side-effect, the solution implemented to resolve v19 Hard Fork issues
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opened a path to simplify v19 migration for mobile wallets.
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With previous implementation mobile wallets would have to convert 4k+ pubkeys
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at the v19 fork point and that can easily take 10-15 seconds if not more.
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Also, after the v19 Hard Fork, if a masternode list is requested from a block
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before the v19 Hard Fork, the operator keys were coming in basic BLS scheme,
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but the masternode merkleroot hash stored in coinbase transaction at that time
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was calculated with legacy BLS scheme. Hence it was impossible to verify the
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merkleroot hash.
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To fix these issues a new field `nVersion` was introduced for every entry in
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`mnlistdiff` p2p message. This field indicates which BLS scheme should be used
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when deserialising the message - legacy or basic. `nVersion` of the `mnlistdiff`
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message itself will no longer indicate the scheme and must always be set to `1`.
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## Improve mixing support on light clients
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Recent changes to `dsq` and `dstx` messages allowed mobile clients that get
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masternode lists from `mnlistdiff` message to determine the masternode related
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to these messages because the `proTxHash` was used instead of the
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`masternodeOutpoint`. Once the v19 Hard Fork activates the signature of `dsq`
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and `dstx` messages will be based on the `proTxHash` which should make it
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possible for mobile clients to verify it.
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## Allow keeping Chainlocks enabled without signing new ones
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Before this version Chainlocks were either enabled or disabled. Starting with
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this version it's possible to set `SPORK_19_CHAINLOCKS_ENABLED` to a non-zero
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value to disable the signing of new Chainlocks while still enforcing the best
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known one.
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## Other changes
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There were a few other minor changes too, specifically:
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- reindex on DB corruption should now start properly in Qt
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- a mnemonic passphrase longer than 256 symbols no longer crashes the wallet
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- a Qt node running with `-disablewawllet` flag should not crash in Settings now
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- `-masternodeblsprivkey` and `-sporkkey` values are no longer printed in
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`debug.log`
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- should use less memory in the long run comparing to older versions
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- gmp library detection should work better on macos
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- fixed a couple of typos
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# v19.2.0 Change log
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See detailed [set of changes](https://github.com/dashpay/dash/compare/v19.1.0...dashpay:v19.2.0).
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# Credits
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Thanks to everyone who directly contributed to this release:
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2023-06-19 21:37:33 +02:00
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- Kittywhiskers Van Gogh (kittywhiskers)
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2023-06-16 00:11:06 +02:00
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- Konstantin Akimov (knst)
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- Nathan Marley (nmarley)
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2023-06-19 21:37:33 +02:00
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- Odysseas Gabrielides (ogabrielides)
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2023-06-16 00:11:06 +02:00
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- PastaPastaPasta
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- thephez
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- UdjinM6
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As well as everyone that submitted issues, reviewed pull requests and helped
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debug the release candidates.
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# Older releases
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Dash was previously known as Darkcoin.
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Darkcoin tree 0.8.x was a fork of Litecoin tree 0.8, original name was XCoin
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which was first released on Jan/18/2014.
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Darkcoin tree 0.9.x was the open source implementation of masternodes based on
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the 0.8.x tree and was first released on Mar/13/2014.
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Darkcoin tree 0.10.x used to be the closed source implementation of Darksend
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which was released open source on Sep/25/2014.
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Dash Core tree 0.11.x was a fork of Bitcoin Core tree 0.9,
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Darkcoin was rebranded to Dash.
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Dash Core tree 0.12.0.x was a fork of Bitcoin Core tree 0.10.
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Dash Core tree 0.12.1.x was a fork of Bitcoin Core tree 0.12.
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These release are considered obsolete. Old release notes can be found here:
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- [v19.1.0](https://github.com/dashpay/dash/blob/master/doc/release-notes/dash/release-notes-19.0.0.md) released May/22/2023
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- [v19.0.0](https://github.com/dashpay/dash/blob/master/doc/release-notes/dash/release-notes-19.0.0.md) released Apr/14/2023
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- [v18.2.2](https://github.com/dashpay/dash/blob/master/doc/release-notes/dash/release-notes-18.2.2.md) released Mar/21/2023
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- [v18.2.1](https://github.com/dashpay/dash/blob/master/doc/release-notes/dash/release-notes-18.2.1.md) released Jan/17/2023
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- [v18.2.0](https://github.com/dashpay/dash/blob/master/doc/release-notes/dash/release-notes-18.2.0.md) released Jan/01/2023
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- [v18.1.1](https://github.com/dashpay/dash/blob/master/doc/release-notes/dash/release-notes-18.1.1.md) released January/08/2023
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- [v18.1.0](https://github.com/dashpay/dash/blob/master/doc/release-notes/dash/release-notes-18.1.0.md) released October/09/2022
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- [v18.0.2](https://github.com/dashpay/dash/blob/master/doc/release-notes/dash/release-notes-18.0.2.md) released October/09/2022
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- [v18.0.1](https://github.com/dashpay/dash/blob/master/doc/release-notes/dash/release-notes-18.0.1.md) released August/17/2022
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- [v0.17.0.3](https://github.com/dashpay/dash/blob/master/doc/release-notes/dash/release-notes-0.17.0.3.md) released June/07/2021
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- [v0.17.0.2](https://github.com/dashpay/dash/blob/master/doc/release-notes/dash/release-notes-0.17.0.2.md) released May/19/2021
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- [v0.16.1.1](https://github.com/dashpay/dash/blob/master/doc/release-notes/dash/release-notes-0.16.1.1.md) released November/17/2020
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- [v0.16.1.0](https://github.com/dashpay/dash/blob/master/doc/release-notes/dash/release-notes-0.16.1.0.md) released November/14/2020
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- [v0.16.0.1](https://github.com/dashpay/dash/blob/master/doc/release-notes/dash/release-notes-0.16.0.1.md) released September/30/2020
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- [v0.15.0.0](https://github.com/dashpay/dash/blob/master/doc/release-notes/dash/release-notes-0.15.0.0.md) released Febrary/18/2020
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- [v0.14.0.5](https://github.com/dashpay/dash/blob/master/doc/release-notes/dash/release-notes-0.14.0.5.md) released December/08/2019
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- [v0.14.0.4](https://github.com/dashpay/dash/blob/master/doc/release-notes/dash/release-notes-0.14.0.4.md) released November/22/2019
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- [v0.14.0.3](https://github.com/dashpay/dash/blob/master/doc/release-notes/dash/release-notes-0.14.0.3.md) released August/15/2019
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- [v0.14.0.2](https://github.com/dashpay/dash/blob/master/doc/release-notes/dash/release-notes-0.14.0.2.md) released July/4/2019
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- [v0.14.0.1](https://github.com/dashpay/dash/blob/master/doc/release-notes/dash/release-notes-0.14.0.1.md) released May/31/2019
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- [v0.14.0](https://github.com/dashpay/dash/blob/master/doc/release-notes/dash/release-notes-0.14.0.md) released May/22/2019
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- [v0.13.3](https://github.com/dashpay/dash/blob/master/doc/release-notes/dash/release-notes-0.13.3.md) released Apr/04/2019
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- [v0.13.2](https://github.com/dashpay/dash/blob/master/doc/release-notes/dash/release-notes-0.13.2.md) released Mar/15/2019
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- [v0.13.1](https://github.com/dashpay/dash/blob/master/doc/release-notes/dash/release-notes-0.13.1.md) released Feb/9/2019
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- [v0.13.0](https://github.com/dashpay/dash/blob/master/doc/release-notes/dash/release-notes-0.13.0.md) released Jan/14/2019
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- [v0.12.3.4](https://github.com/dashpay/dash/blob/master/doc/release-notes/dash/release-notes-0.12.3.4.md) released Dec/14/2018
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- [v0.12.3.3](https://github.com/dashpay/dash/blob/master/doc/release-notes/dash/release-notes-0.12.3.3.md) released Sep/19/2018
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- [v0.12.3.2](https://github.com/dashpay/dash/blob/master/doc/release-notes/dash/release-notes-0.12.3.2.md) released Jul/09/2018
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- [v0.12.3.1](https://github.com/dashpay/dash/blob/master/doc/release-notes/dash/release-notes-0.12.3.1.md) released Jul/03/2018
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- [v0.12.2.3](https://github.com/dashpay/dash/blob/master/doc/release-notes/dash/release-notes-0.12.2.3.md) released Jan/12/2018
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- [v0.12.2.2](https://github.com/dashpay/dash/blob/master/doc/release-notes/dash/release-notes-0.12.2.2.md) released Dec/17/2017
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- [v0.12.2](https://github.com/dashpay/dash/blob/master/doc/release-notes/dash/release-notes-0.12.2.md) released Nov/08/2017
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- [v0.12.1](https://github.com/dashpay/dash/blob/master/doc/release-notes/dash/release-notes-0.12.1.md) released Feb/06/2017
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- [v0.12.0](https://github.com/dashpay/dash/blob/master/doc/release-notes/dash/release-notes-0.12.0.md) released Aug/15/2015
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- [v0.11.2](https://github.com/dashpay/dash/blob/master/doc/release-notes/dash/release-notes-0.11.2.md) released Mar/04/2015
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- [v0.11.1](https://github.com/dashpay/dash/blob/master/doc/release-notes/dash/release-notes-0.11.1.md) released Feb/10/2015
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- [v0.11.0](https://github.com/dashpay/dash/blob/master/doc/release-notes/dash/release-notes-0.11.0.md) released Jan/15/2015
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- [v0.10.x](https://github.com/dashpay/dash/blob/master/doc/release-notes/dash/release-notes-0.10.0.md) released Sep/25/2014
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- [v0.9.x](https://github.com/dashpay/dash/blob/master/doc/release-notes/dash/release-notes-0.9.0.md) released Mar/13/2014
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