Zcoin 0.8.7.9

This is a minor optional update which will be replaced soon.
The update is intended for those who are having sync issues.

Small usability improvements

• Wallet now shows progress when re-indexing
• Zerocoin indexing fixes and performance improvements

Zcoin 0.8.7.8

Changelog

• Sync fixes with ported code from Bitcoin Core 0.13
• Added precomputed accumulator for improved loading speed.
• Compilation fixes on libzerocoin library

SHA256 Checksums:

zcoin-qt-v0.8.7.8-windows.zip
9C98F9296405E78D3C743C4CD334B3C1F2CE37593AA3F357C87398FFF135C197

zcoin-qt-v0.8.7.8-osx.dmg
A96C5C8F2ACC9080DA3A018FC7452042BE4A40D3F6F5029DF5ABDAE7BC96E6BA

zcoin-qt-v0.8.7.8-linux64.tar.gz
38567BF35DDBA939F1D219698F5D76CD490FE2BB68C0D051FE636B20E2C1C9F4

Instructions

We recommend starting a new wallet and clearing all existing files in your Zcoin data folder (remember to back up wallet.dat and export private keys. See below for more info!). This is because some legacy wallets still get stuck. In Windows this is typically in C:\Users\YOURUSERNAME\AppData\Roaming\zcoin while in Linux it should be in ~/.zcoin

First sync takes about a day but subsequent loads are very fast. You can also download the latest blockchain data at znode.io which speeds it up a little.

Just remember to backup your wallet.dat and to export any private keys on your old wallet with funds in them!

You can do this by going to Help > Debug Window > Console and typing the following:

walletpassphrase passphrase 120 (only if wallet is encrypted)
dumpprivkey address

Once you have your private key and your new wallet is synced u can import the private keys into it by:

walletpassphrase passphrase 120 (only if wallet is encrypted)
importprivkey yourPrivateKey "TheLabelThatIWant"

If you have any questions do drop by our Slack.

Known Bugs / Improvements

• When syncing with existing wallet.dat. Sometimes wallet will get stuck at block 670. Restarting with a -reindex flag will push it forward.
• When starting with wallet.dat but no other data, first time launch will crash but just open it up again and it will run fine.
• When importing blockchain data from znode.io, wallet will appear to be Loading on splash screen and will take a long time. It is loading but no progress is visible but will eventually load. If your CPU is being consumed, it is loading and not stuck.

Zcoin 0.8.7.7

Fixed Allow Multiple Spending TXs

Zcoin 0.8.7.6

• Fix zerocoin minting bug at GUI
• Release version now bases on wallet version

Add checkpoint at block 20580 and remove old version node

Added checkpoint at block 20580
Remove old version node

Lyra2Z parameters change for better GPU performance. Sync bug fixed.

Merge pull request #57 from zcoinofficial/Lyra2Z

Final Lyra2Z

Changed to Lyra2Z at block 20500

• Changed mining algorithm to lyra2z at block 20500 to discourage botnet / credit miner abuse
• temporary fix for sync issue

Wallet loading optimisation and MacOS compile fix

• Wallet loading times improved greatly. First loading time after install/reinstall will still take hours but subsequent loads will take minutes.
• Fixed compile issue for MacOS

Update minimum protocol version

v0.1.6

Urgent update to eliminate old wallet version

Update Founder Reward

• It will fork at block 14000
• Protocol version 90016