Zcoin "French Drop" v0.13.6.3

Instructions

Highly recommended update (even for 13.6.1 and 13.6.2) for local wallets and mining pools. Alternative to updating will be a reindex. Mandatory upgrade for Znodes to avoid any disruptions (though you can stick to 13.6.2 if you perform a reindex).

Failure to update to 13.6.3 may result in stuck wallets which can be cured by a reindex though it will be easier to update to this version.

Before anything, backup your wallet.dat (File > Backup Wallet), ideally in a different drive.

Changelog

• Enables Zerocoin spend to third party feature
• Resolves database issues where wallets can be stuck on certain Zerocoin spends.
• Highly recommended update to avoid wallet stuck issues (alternative is to do a reindex)

Binaries

• Version: v0.13.6.3- SHA256 Hashes:
  • Windows: FEEA7A933E59752DD023D89110B84C6831405164FC88EF0BB2062B9A8EF7A88B
  • Windows installer: AE8798357A2F9878D26B6A05E0DF1006853E1B38F6BD3193FCDCE7118F484777
  • Linux: EF7991E2E4084E7F3E3EC8ACB61DF38E3DF05143F971A1868BFFEB761B28A059
  • Mac: 94A192D587BB8A22B87874293E28E93D28FA74337B24FDEC7C0C9CE3899D0125

Zcoin "French Drop" v0.13.6.2

Instructions

Mandatory upgrade from 13.6.1 for Znodes and mining pools and local wallets with Znodes. Failure to update may result in inconsistent Znode information/status/payouts.

Highly recommended update for exchange wallets or wallets without Znodes but not compulsory.

Before anything, backup your wallet.dat (File > Backup Wallet), ideally in a different drive.

When upgrading to this version from the 13.4 branch, it will prompt for a one time reindex (approximately 30-80 minutes). A typical 1 CPU VPS will take about 1 hour 15 minutes. If you are upgrading your Znodes, as long as upgrade is completed within 3 hours, you won't need to issue a znode start command and you won't lose your queue status.

If you are upgrading from 13.5, no reindex is required unless you are stuck on a block on which a reindex is required. Follow this guide on how to reindex.

Changelog

• Mandatory upgrade for Znodes, mining pools and local wallets with Znodes.
• Removes the need for local wallet to reissue Znode start_alias command after hard fork date.
• Hard fork block 89300 Update by May 28

Binaries

• Version: v0.13.6.2- SHA256 Hashes:
  • Windows: c870cc9b8b607f53178410818e5f888e7a5983d44efb7dd2d072e3a060855ae5
  • Windows installer: 7398bc3e2f2e10fe2676410d11a65733c86bf66b9a7162ad9b579651f1ec1506
  • Linux: 27e6d36a460ea70ecdfd646f6e1f1f2ff6925d41391cfdf8412b25a56d96b0e7
  • Mac: e0113461ab98bcefda5550cb8ce63a8ec26442d29e907ff21db9db456c1babed

Zcoin "French Drop" v0.13.6.1

Instructions

Mandatory upgrade (including pools, Znodes, exchanges, wallets) for all prior versions.

Before anything, backup your wallet.dat (File > Backup Wallet), ideally in a different drive.

When upgrading to this version from the 13.4 branch, it will prompt for a one time reindex (approximately 30-80 minutes). A typical 1 CPU VPS will take about 1 hour 15 minutes. If you are upgrading your Znodes, as long as upgrade is completed within 3 hours, you won't need to issue a znode start command and you won't lose your queue status.

If you are upgrading from 13.5, no reindex is required unless you are stuck on a block on which a reindex is required. Follow this guide on how to reindex.

Changelog

• Mandatory upgrade
• Security fixes
• Hard fork block 89300 (Current block height as of date of release is 87478) so approximately 12 days from date of release.

Binaries

• Version: v0.13.6.1- SHA256 Hashes:
  • Windows: BA0D4A08BD6FA1919A251E7DFA7C5B6A0B6D984C0EB1B7DA90EB3F192A1CB501
  • Windows installer: C3403AEB4C2FF01013C6DFE97721C8DFBEB4EC1C20281808575DF71EA5A69EC9
  • Linux: C1C48720E395E334F7A55AA824A7EF0C920DF902247E5AB61082FF78A07B8C46
  • Mac: C8F9C7A3D70C5B6CF8A7A3EA780AAC2BF70E3F4F3780029F373EDD2D40F975ED

Zcoin "French Drop" v0.13.5.8

Instructions

Before anything, backup your wallet.dat (File > Backup Wallet), ideally in a different drive.

When upgrading to this version from the 13.4 branch, it will prompt for a one time reindex (approximately 30-80 minutes). A typical 1 CPU VPS will take about 1 hour 15 minutes. If you are upgrading your Znodes, as long as upgrade is completed within 3 hours, you won't need to issue a znode start command and you won't lose your queue status.

If you are upgrading from 13.5, no reindex is required unless you are stuck on a block on which a reindex is required. Follow this guide on how to reindex.

Changelog

• Mandatory upgrade
• Zerocoin sync fixes (especially those stuck on block 80432) and additional checks
• Disclosure: Zerocoin flaw resulted in an additional 14,646 coins being created during the period 8-12 March 2018

Binaries

• Version: v0.13.5.8- SHA256 Hashes:
  • Windows: 6D6582A52843718D42793473D2242A3ECE4C56D2BB2F71CFB5433D5DE681C50C
  • Windows installer: 80A506DD14D3173515D6307D45ECF24502381703E21F3DC32012050F55470272
  • Linux: E2E001892C10CECBDC68BBB71471387F4A9347162263F9B3760122DFBABAEA58
  • Mac: AF686FA96C9FB7BA5F4F2BEEC0CEBF2B89B42A9DDD687BFCEDE274D42F8A4B6E

Zcoin "French Drop" v0.13.5.7

Instructions

Mandatory upgrade with hard fork on block 78500 (roughly 14-15 March 2018). You are highly recommended to spend any unspent Zerocoin mints in your wallet so that they can be moved to the new Zerocoin scheme.

If you are already on13.5.5 or 13.5.6, it is still highly recommended to upgrade to 13.5.7 to avoid nodes getting stuck.

Before anything, backup your wallet.dat (File > Backup Wallet), ideally in a different drive.

When upgrading to this version from the 13.4 branch, it will prompt for a one time reindex (approximately 30-80 minutes). A typical 1 CPU VPS will take about 1 hour 15 minutes. If you are upgrading your Znodes, as long as upgrade is completed within 3 hours, you won't need to issue a znode start command and you won't lose your queue status.

If you are upgrading from 13.5, no reindex is required unless you are stuck on a block on which a reindex is required. Follow this guide on how to reindex.

Changelog

• Fixes Zerocoin flaw allowing doublespend
• Mandatory upgrade

Safety Precautions

Please note that once you have upgraded to 13.5 branch, your wallet.dat will have a different structure from 13.4 and below and will not be backward compatible.

You are highly recommended to spend any unspent Zerocoin mints in your wallet so that they can be moved to the new Zerocoin scheme.

Binaries

• Version: v0.13.5.7- SHA256 Hashes:
  • Windows: 4d93e329fe41380f93effd32c279815cb2f4bc7a0b7b97391e32751f77c4c6c1
  • Windows installer: 4a0061de266f67b55e5a003c6c0ad633ad9a8b291556a43de625f30cecdb8293
  • Linux: 26c74586e5fc0e520ed266d20748532917d2617d2e71a8497747398943eda87a
  • Mac: c40c1e6242044a7768f7e498db66f565c56c1e8363e67f53cc9c9ca974613d55

Zcoin "French Drop" v0.13.5.6

Instructions

Mandatory upgrade with hard fork on block 78500 (roughly 14-15 March 2018). You are highly recommended to spend any unspent Zerocoin mints in your wallet so that they can be moved to the new Zerocoin scheme.

Before anything, backup your wallet.dat (File > Backup Wallet), ideally in a different drive.

When upgrading to this version, it will prompt for a one time reindex (approximately 30-80 minutes). A typical 1 CPU VPS will take about 1 hour 15 minutes. If you are upgrading your Znodes, as long as upgrade is completed within 3 hours, you won't need to issue a znode start command and you won't lose your queue status.

Changelog

• Fixes Gitian build issues and uses deterministic builds
• Fixes Linux binaries.
• Fixes high CPU usage in some cases

Safety Precautions

Please note that once you have upgraded to this version, your wallet.dat will have a different structure and will not be backward compatible.

You are highly recommended to spend any unspent Zerocoin mints in your wallet so that they can be moved to the new Zerocoin scheme.

Binaries

• Version: v0.13.5.6- SHA256 Hashes:
  • Windows: 118df8c203342ce62478cdda370e9649b0db891ab0b64fefb017cf6aabcb5ef4
  • Linux: 6785fe0c94943ab527812f0248e6fc7349c80edac03a7c4f42c9fb7263d128a7
  • Mac: 4f45cbf372e14a278f10f6f9d5535786dd80e0335fe92b931efd856a1f38d7f3

Zcoin "French Drop" v0.13.5.5

Instructions

Mandatory upgrade with hard fork on block 78500 (roughly 2 weeks). You are highly recommended to spend any unspent Zerocoin mints in your wallet so that they can be moved to the new Zerocoin scheme.

Before anything, backup your wallet.dat (File > Backup Wallet), ideally in a different drive.

When upgrading to this version, it will prompt for a one time reindex (approximately 30 minutes).

Changelog

• Reindex time is 7-8 times faster
• Incremental accumulator optimizations that makes minting and spending faster in larger accumulator sizes.
• Reduced verification time by inserting additional data in a spend transaction
• Optimized performance by integrating Zerocoin features into block index
• Reduced wallet.dat size through restructuring of data and only storing own mints
• Solved wallet.dat / index out of sync issues
• Improved stability by eliminating non deterministic behaviour
• Security fixes

Safety Precautions

Please note that once you have upgraded to this version, your wallet.dat will have a different structure and will not be backward compatible.

You are highly recommended to spend any unspent Zerocoin mints in your wallet so that they can be moved to the new Zerocoin scheme.

Binaries

• Version: v0.13.5.5- SHA256 Hashes:
  • Windows: 8C37D6DA54F0F5530D308AEEC6BF15749059C1DC352527C9B2FD78E6757F908E
  • Linux: 1860E535F206519F626B2552CECD605D53961F2254F2897577A2ACEB1764237E
  • Mac: D1B708C012BDF8F9D91EF0C853838FC9B7E4A39941DA1198C6DA11049525145A

Zcoin v0.13.4.3

Instructions

Non mandatory update if you're already on v0.13.4.2. Recommended just to reduce excessive logging and cosmetic updates.

Before anything, backup your wallet.dat (File > Backup Wallet), ideally in a different drive.

When upgrading to a version prior to v.013.4.1, it would prompt you to do a one time reindex to enable txindex=1. This will take about an hour.

If upgrading from v0.13.4.1 or v0.13.4.2, no reindex is required. If you have a Znode started, if you start and stop the daemon quickly within an hour, a znode start is not required though always good to double check and verify the start status.

If you are stuck when upgrading to this version, make sure to go into your Zcoin data directory and delete peers.dat and banlist.dat then do a reindex.

Read this guide on how to reindex.

Instructions on how to setup your Znode: https://zcoin.io/zcoin-znode-setup-guide/

Changelog

• Non mandatory but recommended update if from v0.13.4.2.
• Further reduced logging (was still too verbose)
• GUI fix for missing sync status.
• Mac compilation fixes

Safety Precautions

Before doing any Zerocoin mints or spend, make sure to do File>Backup your wallet.dat and save in separate location so you can restore in the case a mint/spend does not confirm.

Binaries

• Version: v0.13.4.3- SHA256 Hashes:
  • Windows: 0a0c1cb0ae0b3328be0ff57f5ca57da1e8c1f031c5bd79011f9f3cbc0e6dc3f7
  • Linux: 65ae2040b603260268877d8e9e4ff6845dbd82ebfff6b507e6f50f03b09d72df
  • Mac: 65d52c848e4153e0c6901555b72eaa5422ee16ad798fcc55857373e786e15e63

Zcoin v0.13.4.2

Instructions

Before anything, backup your wallet.dat (File > Backup Wallet), ideally in a different drive.

When upgrading to a version prior to v.013.4.1, it would prompt you to do a one time reindex to enable txindex=1. This will take about an hour.

If upgrading from v0.13.4.1, no reindex is required. If you have a Znode started, if you start and stop the daemon quickly within an hour, a znode start is not required though always good to double check and verify the start status.

If you are stuck when upgrading to this version, make sure to go into your Zcoin data directory and delete peers.dat and banlist.dat then do a reindex.

Read this guide on how to reindex.

Instructions on how to setup your Znode: https://zcoin.io/zcoin-znode-setup-guide/

Changelog

• Reduced verbosity of logging
• Resolved a bug which allowed duplicate txid for Zerocoin spends (no new coins created)
• Additional Zerocoin serial checks

Safety Precautions

Before doing any Zerocoin mints or spend, make sure to do File>Backup your wallet.dat and save in separate location so you can restore in the case a mint/spend does not confirm.

Credits

Credits to T0rin0 for his bug submission.

Binaries

• Version: v0.13.4.2- SHA256 Hashes:
  • Windows: 7a4abf8bc5dbb33811288d95593cea3e8e2d00462891f177071540d8b508dab8
  • Linux: 40eb35893bb8e5edb260d1889a1ebf07e72174702bf1bcf344fc82030c861fdb
  • Mac: 27037936705f85e5452613a42113380c4dc322d148c17a37e1314b9a853bfc7b

Zcoin v0.13.4.1

Instructions

Before anything, backup your wallet.dat (File > Backup Wallet), ideally in a different drive.

When upgrading to this version, it would prompt you to do a one time reindex to enable txindex=1. This will take about an hour.

If you are stuck when upgrading to this version, make sure to go into your Zcoin data directory and delete peers.dat and banlist.dat then do a reindex.

Read this guide on how to reindex.

Instructions on how to setup your Znode: https://zcoin.io/zcoin-znode-setup-guide/

Changelog

• Mandatory update from all previous versions. Hard fork at block 66550 so update has to be done before then.
• Znode enabled and Founder's reward reduction at block 66700
• Simple Znode GUI
• Optimizations to improve reindex/sync speed on multiple core systems
• Zerocoin mints now are spendable at 6 confirmations, previously 7 confirmations.

Safety Precautions

Before doing any Zerocoin mints or spend, make sure to do File>Backup your wallet.dat and save in separate location so you can restore in the case a mint/spend does not confirm.

Credits

Credits to the many testers who helped us test this release and special mention to schwifty_pickle for helping us with the testnet pool.

Credits to Dash for coming up with the idea and code of masternodes.

Binaries

• Version: v0.13.4.1- SHA256 Hashes:
  • Windows: 3c7c14f351402019a5aed2729b8d0ad173e5a624b75aa64906b5201327a46e40
  • Linux: b13b6e765d6757543cadceb785c38e01245dc7a25dddad3a36f67a3e5c93aeb4
  • Mac: 7038b5acd7837ee891173d08193635a41c3d256f60088e5f1ab56c03ad3ba1df