Merge pull request #2555 from codablock/pr_testnetreset_v12

Reset/Fork testnet to block 4000 and prepare v0.12.3.4 release

configure.ac

@@ -3,7 +3,7 @@ AC_PREREQ([2.60])
 define(_CLIENT_VERSION_MAJOR, 0)
 define(_CLIENT_VERSION_MINOR, 12)
 define(_CLIENT_VERSION_REVISION, 3)
-define(_CLIENT_VERSION_BUILD, 3)
+define(_CLIENT_VERSION_BUILD, 4)
 define(_CLIENT_VERSION_IS_RELEASE, true)
 define(_COPYRIGHT_YEAR, 2018)
 define(_COPYRIGHT_HOLDERS,[The %s developers])

doc/Doxyfile

@@ -41,7 +41,7 @@ PROJECT_NAME           = "Dash Core"
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = 0.12.3.3
+PROJECT_NUMBER         = 0.12.3.4
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a

doc/release-notes.md

@@ -1,11 +1,11 @@
-Dash Core version 0.12.3.3
+Dash Core version 0.12.3.4
 ==========================
 
 Release is now available from:
 
   <https://www.dash.org/downloads/#wallets>
 
-This is a critical bugfix release.
+This is an optional release and only contains changes for testnet. It is not required to update masternodes on mainnet.
 
 Please report bugs using the issue tracker at github:
 
@@ -34,7 +34,7 @@ the database if you decide to use any pre-0.12.2.2 version.
 
 Wallet forward or backward compatibility was not affected.
 
-### Downgrade to 0.12.2.2/3, 0.12.3.1/2
+### Downgrade to 0.12.3.1/2/3
 
 Downgrading to these versions does not require any additional actions, should be
 fully compatible.
@@ -43,16 +43,18 @@ fully compatible.
 Notable changes
 ===============
 
-Fix crash bug with duplicate inputs within a transaction
+Fork/Reset testnet at block 4001
---------------------------------------------------------
+--------------------------------
 
-There was a critical bug discovered in Bitcoin Core's codebase recently which
+This release is NOT required on mainnet. It is intended to be deployed on testnet and will cause a fork at block 4001.
-can cause node receiving a block to crash https://github.com/bitcoin/bitcoin/pull/14247
+The plan is to restart all testing for the v0.13.0.0 upgrade process.
 
-0.12.3.3 Change log
+When deployed on testnet, it is required to start with a fresh data directory or call Dash Core with `-reindex-chainstate`.
+
+0.12.3.4 Change log
 ===================
 
-See detailed [set of changes](https://github.com/dashpay/dash/compare/v0.12.3.2...dashpay:v0.12.3.3).
+See detailed [set of changes](https://github.com/dashpay/dash/compare/v0.12.3.3...dashpay:v0.12.3.4).
 
 Credits
 =======
@@ -84,6 +86,7 @@ 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:
 
+- [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
 - [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
 - [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
 - [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

doc/release-notes/dash/release-notes-0.12.3.3.md

@@ -0,0 +1,99 @@
+Dash Core version 0.12.3.3
+==========================
+
+Release is now available from:
+
+  <https://www.dash.org/downloads/#wallets>
+
+This is a critical bugfix release.
+
+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).
+
+Downgrade warning
+-----------------
+
+### Downgrade to a version < 0.12.2.2
+
+Because release 0.12.2.2 included the [per-UTXO fix](release-notes/dash/release-notes-0.12.2.2.md#per-utxo-fix)
+which changed the structure of the internal database, you will have to reindex
+the database if you decide to use any pre-0.12.2.2 version.
+
+Wallet forward or backward compatibility was not affected.
+
+### Downgrade to 0.12.2.2/3, 0.12.3.1/2
+
+Downgrading to these versions does not require any additional actions, should be
+fully compatible.
+
+
+Notable changes
+===============
+
+Fix crash bug with duplicate inputs within a transaction
+--------------------------------------------------------
+
+There was a critical bug discovered in Bitcoin Core's codebase recently which
+can cause node receiving a block to crash https://github.com/bitcoin/bitcoin/pull/14247
+
+0.12.3.3 Change log
+===================
+
+See detailed [set of changes](https://github.com/dashpay/dash/compare/v0.12.3.2...dashpay:v0.12.3.3).
+
+Credits
+=======
+
+Thanks to everyone who directly contributed to this release,
+as well as everyone who submitted issues and reviewed pull requests.
+
+
+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:
+
+- [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
+- [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
+- [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
+- [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
+- [v0.12.2](https://github.com/dashpay/dash/blob/master/doc/release-notes/dash/release-notes-0.12.2.md) released Nov/08/2017
+- [v0.12.1](https://github.com/dashpay/dash/blob/master/doc/release-notes/dash/release-notes-0.12.1.md) released Feb/06/2017
+- [v0.12.0](https://github.com/dashpay/dash/blob/master/doc/release-notes/dash/release-notes-0.12.0.md) released Jun/15/2015
+- [v0.11.2](https://github.com/dashpay/dash/blob/master/doc/release-notes/dash/release-notes-0.11.2.md) released Mar/04/2015
+- [v0.11.1](https://github.com/dashpay/dash/blob/master/doc/release-notes/dash/release-notes-0.11.1.md) released Feb/10/2015
+- [v0.11.0](https://github.com/dashpay/dash/blob/master/doc/release-notes/dash/release-notes-0.11.0.md) released Jan/15/2015
+- [v0.10.x](https://github.com/dashpay/dash/blob/master/doc/release-notes/dash/release-notes-0.10.0.md) released Sep/25/2014
+- [v0.9.x](https://github.com/dashpay/dash/blob/master/doc/release-notes/dash/release-notes-0.9.0.md) released Mar/13/2014
+

src/chainparams.cpp

@@ -285,7 +285,7 @@ public:
         consensus.nBudgetPaymentsCycleBlocks = 50;
         consensus.nBudgetPaymentsWindowBlocks = 10;
         consensus.nSuperblockStartBlock = 4200; // NOTE: Should satisfy nSuperblockStartBlock > nBudgetPeymentsStartBlock
-        consensus.nSuperblockStartHash = uint256S("00000000cffabc0f646867fba0550afd6e30e0f4b0fc54e34d3e101a1552df5d");
+        consensus.nSuperblockStartHash = uint256(); // do not check this on testnet
         consensus.nSuperblockCycle = 24; // Superblocks can be issued hourly on testnet
         consensus.nGovernanceMinQuorum = 1;
         consensus.nGovernanceFilterElements = 500;
@@ -300,8 +300,8 @@ public:
         consensus.nPowTargetSpacing = 2.5 * 60; // Dash: 2.5 minutes
         consensus.fPowAllowMinDifficultyBlocks = true;
         consensus.fPowNoRetargeting = false;
-        consensus.nPowKGWHeight = 4001; // nPowKGWHeight >= nPowDGWHeight means "no KGW"
+        consensus.nPowKGWHeight = 4002; // nPowKGWHeight >= nPowDGWHeight means "no KGW"
-        consensus.nPowDGWHeight = 4001;
+        consensus.nPowDGWHeight = 4002;
         consensus.nRuleChangeActivationThreshold = 1512; // 75% for testchains
         consensus.nMinerConfirmationWindow = 2016; // nPowTargetTimespan / nPowTargetSpacing
         consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
@@ -310,28 +310,28 @@ public:
 
         // Deployment of BIP68, BIP112, and BIP113.
         consensus.vDeployments[Consensus::DEPLOYMENT_CSV].bit = 0;
-        consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nStartTime = 1506556800; // September 28th, 2017
+        consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nStartTime = 1544655600; // Dec 13th, 2018
-        consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nTimeout = 1538092800; // September 28th, 2018
+        consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nTimeout = 1576191600; // Dec 13th, 2019
 
         // Deployment of DIP0001
         consensus.vDeployments[Consensus::DEPLOYMENT_DIP0001].bit = 1;
-        consensus.vDeployments[Consensus::DEPLOYMENT_DIP0001].nStartTime = 1505692800; // Sep 18th, 2017
+        consensus.vDeployments[Consensus::DEPLOYMENT_DIP0001].nStartTime = 1544655600; // Dec 13th, 2018
-        consensus.vDeployments[Consensus::DEPLOYMENT_DIP0001].nTimeout = 1537228800; // Sep 18th, 2018
+        consensus.vDeployments[Consensus::DEPLOYMENT_DIP0001].nTimeout = 1576191600; // Dec 13th, 2019
         consensus.vDeployments[Consensus::DEPLOYMENT_DIP0001].nWindowSize = 100;
         consensus.vDeployments[Consensus::DEPLOYMENT_DIP0001].nThreshold = 50; // 50% of 100
 
         // Deployment of BIP147
         consensus.vDeployments[Consensus::DEPLOYMENT_BIP147].bit = 2;
-        consensus.vDeployments[Consensus::DEPLOYMENT_BIP147].nStartTime = 1517792400; // Feb 5th, 2018
+        consensus.vDeployments[Consensus::DEPLOYMENT_BIP147].nStartTime = 1544655600; // Dec 13th, 2018
-        consensus.vDeployments[Consensus::DEPLOYMENT_BIP147].nTimeout = 1549328400; // Feb 5th, 2019
+        consensus.vDeployments[Consensus::DEPLOYMENT_BIP147].nTimeout = 1576191600; // Dec 13th, 2019
         consensus.vDeployments[Consensus::DEPLOYMENT_BIP147].nWindowSize = 100;
         consensus.vDeployments[Consensus::DEPLOYMENT_BIP147].nThreshold = 50; // 50% of 100
 
         // The best chain should have at least this much work.
-        consensus.nMinimumChainWork = uint256S("0x000000000000000000000000000000000000000000000000003be69c34b1244f"); // 143200
+        consensus.nMinimumChainWork = uint256S("0x00000000000000000000000000000000000000000000000000000003cd72a542"); // 4000
 
         // By default assume that the signatures in ancestors of this block are valid.
-        consensus.defaultAssumeValid = uint256S("0x0000000004a7878409189b7a8f75b3815d9b8c45ee8f79955a6c727d83bddb04"); // 143200
+        consensus.defaultAssumeValid = uint256S("0x00000ce22113f3eb8636e225d6a1691e132fdd587aed993e1bc9b07a0235eea4"); // 4000
 
         pchMessageStart[0] = 0xce;
         pchMessageStart[1] = 0xe2;
@@ -383,13 +383,11 @@ public:
             (    261, uint256S("0x00000c26026d0815a7e2ce4fa270775f61403c040647ff2c3091f99e894a4618"))
             (   1999, uint256S("0x00000052e538d27fa53693efe6fb6892a0c1d26c0235f599171c48a3cce553b1"))
             (   2999, uint256S("0x0000024bc3f4f4cb30d29827c13d921ad77d2c6072e586c7f60d83c2722cdcc5"))
-            ( 100000, uint256S("0x0000000003aa53e24b6e60ef97642e4193611f2bcb75ea1fa8105f0b5ffd5242"))
-            ( 143200, uint256S("0x0000000004a7878409189b7a8f75b3815d9b8c45ee8f79955a6c727d83bddb04"))
         };
 
-        chainTxData = ChainTxData{        
+        chainTxData = ChainTxData{
-            1529294335, // * UNIX timestamp of last known number of transactions
+            1544707462, // * UNIX timestamp of last known number of transactions
-            5810120,    // * total number of transactions between genesis and that timestamp
+            4100,       // * total number of transactions between genesis and that timestamp
                         //   (the tx=... number in the SetBestChain debug.log lines)
             0.01        // * estimated number of transactions per second after that timestamp
         };

src/clientversion.h

@@ -17,7 +17,7 @@
 #define CLIENT_VERSION_MAJOR 0
 #define CLIENT_VERSION_MINOR 12
 #define CLIENT_VERSION_REVISION 3
-#define CLIENT_VERSION_BUILD 3
+#define CLIENT_VERSION_BUILD 4
 
 //! Set to true for release, false for prerelease or test build
 #define CLIENT_VERSION_IS_RELEASE true

src/pow.cpp

@@ -89,43 +89,18 @@ unsigned int static DarkGravityWave(const CBlockIndex* pindexLast, const CBlockH
         return bnPowLimit.GetCompact();
     }
 
-    if (params.fPowAllowMinDifficultyBlocks && (
+    if (params.fPowAllowMinDifficultyBlocks) {
-        // testnet ...
+        // recent block is more than 2 hours old
-        (params.hashDevnetGenesisBlock.IsNull() && pindexLast->nChainWork >= UintToArith256(uint256S("0x000000000000000000000000000000000000000000000000003e9ccfe0e03e01"))) ||
+        if (pblock->GetBlockTime() > pindexLast->GetBlockTime() + 2 * 60 * 60) {
-        // or devnet
+            return bnPowLimit.GetCompact();
-        !params.hashDevnetGenesisBlock.IsNull())) {
+        }
-        // NOTE: 000000000000000000000000000000000000000000000000003e9ccfe0e03e01 is the work of the "wrong" chain,
+        // recent block is more than 10 minutes old
-        // so this rule activates there immediately and new blocks with high diff from that chain are going
+        if (pblock->GetBlockTime() > pindexLast->GetBlockTime() + params.nPowTargetSpacing * 4) {
-        // to be rejected by updated nodes. Note, that old nodes are going to reject blocks from updated nodes
+            arith_uint256 bnNew = arith_uint256().SetCompact(pindexLast->nBits) * 10;
-        // after the "right" chain reaches this amount of work too. This is a temporary condition which should
+            if (bnNew > bnPowLimit) {
-        // be removed when we decide to hard-fork testnet again.
+                bnNew = bnPowLimit;
-        // TODO: remove "testnet+work OR devnet" part on next testnet hard-fork
-        // Special difficulty rule for testnet/devnet:
-        // If the new block's timestamp is more than 2* 2.5 minutes
-        // then allow mining of a min-difficulty block.
-
-        // start using smoother adjustment on testnet when total work hits
-        // 000000000000000000000000000000000000000000000000003ff00000000000
-        if (pindexLast->nChainWork >= UintToArith256(uint256S("0x000000000000000000000000000000000000000000000000003ff00000000000"))
-            // and immediately on devnet
-            || !params.hashDevnetGenesisBlock.IsNull()) {
-            // recent block is more than 2 hours old
-            if (pblock->GetBlockTime() > pindexLast->GetBlockTime() + 2 * 60 * 60) {
-                return bnPowLimit.GetCompact();
-            }
-            // recent block is more than 10 minutes old
-            if (pblock->GetBlockTime() > pindexLast->GetBlockTime() + params.nPowTargetSpacing*4) {
-                arith_uint256 bnNew = arith_uint256().SetCompact(pindexLast->nBits) * 10;
-                if (bnNew > bnPowLimit) {
-                    bnNew = bnPowLimit;
-                }
-                return bnNew.GetCompact();
-            }
-        } else {
-            // old stuff
-            if (pblock->GetBlockTime() > pindexLast->GetBlockTime() + params.nPowTargetSpacing*2) {
-                return bnPowLimit.GetCompact();
             }
+            return bnNew.GetCompact();
         }
     }