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NTP Sync and Community Fund Accumulation
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@aguycalled aguycalled released this 05 Jun 23:42
· 1723 commits to master since this release
4.2.0
3c03fed
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Learn about vigilant mode.

Introduces two new Soft Forks:

Community Fund - Accumulation of coins, signalled by version bit 7:

  • Reduction of the staking rewards to 4%.
  • Inclusion of an additional output in the Coinstake transaction contributing 0.25NAV to the Community Fund
  • Consensus validation of the previous rule.
  • Uses a separate DB on disk to store data about the Community Fund, increasing performance.

NTP Sync - Signaled by version bit number 8 of staked blocks:

  • Requires mandatory clock sync against an NTP server for every node on launch.
  • New consensus rule where no blocks in the past can exist, and maximal drift in the future for a block is 60 seconds.
  • Peers whose clock drifts more than 30 seconds are disconnected.
  • Clock change attempts are automatically readjusted.
  • New log category "ntp".
  • New multi-argument -ntpserver= to allow the user to manually specify servers.
  • New argument -ntpminmeasures= to allow the user to specify the req. min. of measures.
  • New argument -ntptimeout= to allow the user to specify how many seconds should we wait for the response of an ntp server.
  • New argument -maxtimeoffset= to set the max tolerated clock drift for peers.

An additional network "devnet" is added.

  • Default p2p port: 18886
  • Default rpc port: 44446
  • Default datadir: OS_DATADIR/devnet
  • Enabled through argument -devnet=1

Core Wallet GUI Fixes:

  • Fixes wrong pixel density on HiDPI screens.
  • Menu option to export private key of an address and master private key.
  • Accepts URI to sign messages.
  • Shows and categorizes correctly contributions to the Community Fund and payments received from it.
  • Does not show Orphan Stakes on the Transaction List.
  • Removes Community Fund voting popup.

Other Fixes/Notes

  • Ignores Coinstake Output when calculating the Witness Merkle Root, fixing a bug related to Segregated Witness transactions.
  • Bans nodes with obsolete versions.
  • Removes some recurring log messages.
  • Updates the package version of some dependencies, solving compatibilities issues with some operating systems.
  • Bundles some dependency libraries with the binaries.
  • Updates the seed nodes.
  • Fixes some of the test units.
  • navcoin-tx tool has been updated to use NavCoin's own transaction structure

SHA256 Hashes

To check the validity of the hashes, visit the navcoin-sigs repository

navcoin-4.2.0-aarch64-linux-gnu.tar.gz

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navcoin-4.2.0-arm-linux-gnueabihf.tar.gz

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navcoin-4.2.0-i686-pc-linux-gnu.tar.gz

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navcoin-4.2.0-x86_64-linux-gnu.tar.gz

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navcoin-4.2.0-osx64.tar.gz

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navcoin-4.2.0-osx.dmg

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navcoin-4.2.0-win32-setup.exe

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navcoin-4.2.0-win32.zip

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navcoin-4.2.0-win64-setup.exe

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navcoin-4.2.0-win64.zip

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navcoin-4.2.0.tar.gz

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