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LiteGenX Core version 3.1.1 is now available from: https://github.com/litegenx-project/litegenx/releases

This is a new minor version release, including various bug fixes and performance improvements, as well as updated translations.

Please report bugs using the issue tracker at github: https://github.com/litegenx-project/litegenx/issues

Non-Mandatory Update

LiteGenX Core v3.1.1 is a non-mandatory update to address bugs and introduce minor enhancements that do not require a network change.

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/LiteGenX-Qt (on Mac) or litegenxd/litegenx-qt (on Linux).

Compatibility

LiteGenX Core is extensively tested on multiple operating systems using the Linux kernel, macOS 10.8+, and Windows Vista and later.

Microsoft ended support for Windows XP on April 8th, 2014, No attempt is made to prevent installing or running the software on Windows XP, you can still do so at your own risk but be aware that there are known instabilities and issues. Please do not report issues about Windows XP to the issue tracker.

LiteGenX Core should also work on most other Unix-like systems but is not frequently tested on them.

❗❗❗ MacOS 10.13 High Sierra ❗❗❗

Currently there are issues with the 3.0.0+ gitian release on MacOS version 10.13 (High Sierra), no reports of issues on older versions of MacOS.

Notable Changes

zPIV Updates

Fix spending for v1 zPIV created before block 1050020

The transition to v2 zPIV and reset of the accumulators caused blocks 1050000 - 1050010 to be accumulated twice. This was causing a number v1 zPIV to not create valid witnesses, and thus were not spendable. This problem is fixed by double accumulating blocks 1050000-1050010 when creating the witness. Any user that had issues spending zPIV v1 will now be able to convert that into PIV and then zPIV v2 (if desired).

Adjustment to staking properties to reduce orphaned blocks

zPIV stake set to update more frequently and lowering the stake hashdrift to 30 seconds to reduce the number of orphans being experienced by LiteGenX stakers.

Further work is being done to improve the efficiently of zPoS beyond this, and will be available in a subsequent release at a later date.

User Experience

Fix wrongly displayed balance on Overview tab

Fixes a display issue introduced with a previous change. This was a "display only" issue, all your coins were there all the time.

Show progress percent for zpiv reindex operations

When starting the wallet with -reindexaccumulators and/or -reindexzerocoin, these operations can take a considerable time to complete depending on system hardware. A progress percent on the splash screen is now shown for these processes to avoid confusion in thinking that the wallet has frozen.

Add TOR service icon to status bar

An icon is now shown for clients that are connected and operating over the TOR network. Included is a mouse-over tooltip showing the onion address associated with the client. This icon is only shown when a connection to the TOR network can be established, and will be hidden otherwise.

LiteGenX Daemon & Client (RPC Changes)

Fix listtransactions RPC function

This addresses an issue where new incoming transactions are not recorded properly, and subsequently, not returned with listtransactions in the same session.

This fix was previously included in the v3.1.0.3 tag, and relayed to affected exchanges/services, which typically use this command for accounting purposes. It is included here for completeness.

Technical Changes

Switch to libsecp256k1 signature verification

Here is the long overdue update for LiteGenX to let go of OpenSSL in its consensus code. The rationale behind it is to avoid depending on an external and changing library where our consensus code is affected. This is security and consensus critical. LiteGenX users will experience quicker block validations and sync times as block transactions are verified under libsecp256k1.

The recent CVE-2018-0495 brings into question a potential vulnerability with OpenSSL (and other crypto libraries) that libsecp256k1 is not susceptible to.

Write to the zerocoinDB in batches

Instead of using a separate write operation for each and every bit of data that needs to be flushed to disk, utilize leveldb's batch writing capability. The primary area of improvement this offers is when reindexing the zerocoinDB (-reindexzerocoin), which went from needing multiple hours on some systems to mere minutes.

Secondary improvement area is in ConnectBlock() when multiple zerocoin transactions are involved.

Resolution of excessive peer banning

It was found that following a forced closure of the LiteGenX core wallet (ungraceful), a situation could arise that left partial/incomplete data in the disk cache. This caused the client to fail a basic sanity test and ban any peer which was sending the (complete) data. This, in turn, was causing the wallet to become stuck. This issue has been resolved client side by guarding against this partial/incomplete data in the disk cache.

3.1.1 Change log

Detailed release notes follow. This overview includes changes that affect behavior, code moves, refactoring and string updates. For convenience in locating the code changes and accompanying discussion, both the pull request and git merge commit are mentioned.

Core Features

  • #549 8bf13a5ad [Crypto] Switch to libsecp256k1 signature verification and update the lib (warrows)
  • #609 6b73598b9 [MoveOnly] Remove zPIV code from main.cpp (presstab)
  • #610 6c3bc8c76 [Main] Check whether tx is in chain in ContextualCheckZerocoinMint(). (presstab)
  • #624 1a82aec96 [Core] Missing seesaw value for block 325000 (warrows)
  • #636 d359c6136 [Main] Write to the zerocoinDB in batches (Fuzzbawls)

Build System

  • #605 b4d82c944 [Build] Remove unnecessary BOOST dependency (Mrs-X)
  • #622 b8c672c98 [Build] Make sure Boost headers are included for libzerocoin (Fuzzbawls)
  • #639 98c7a4f65 [Travis] Add separate job to check doc/logprint/subtree (Fuzzbawls)
  • #648 9950fce59 [Depends] Update Qt download url (fanquake)

P2P Protocol and Network Code

  • #608 a602d00eb [Budget] Make sorting of finalized budgets deterministic (Mrs-X)
  • #647 3aa3e5c97 [Net] Update hard-coded fallback seeds (Fuzzbawls)

GUI

  • #580 c296b7572 Fixed Multisend dialog to show settings properly (SHTDJ)
  • #598 f0d894253 [GUI] Fix wrongly displayed balance on Overview tab (Mrs-X)
  • #600 217433561 [GUI] Only enable/disable PrivacyDialog zPIV elements if needed. (presstab)
  • #612 6dd752cb5 [Qt] Show progress percent for zpiv reindex operations (Fuzzbawls)
  • #626 9b6a42ba0 [Qt] Add Tor service icon to status bar (Fuzzbawls)
  • #629 14e125795 [Qt] Remove useless help button from QT dialogs (windows) (warrows)
  • #646 c66b7b632 [Qt] Periodic translation update (Fuzzbawls)

Wallet

  • #597 766d5196c [Wallet] Write new transactions to wtxOrdered properly (Fuzzbawls)
  • #603 779d8d597 Fix spending for v1 zPIV created before block 1050020. (presstab)
  • #617 6b525f0df [Wallet] Adjust staking properties to lower orphan rates. (presstab)
  • #625 5f2e61d60 [Wallet] Add some LOCK to avoid crash (warrows)

Miscellaneous

  • #585 76c01a560 [Doc] Change aarch assert sign output folder (Warrows)
  • #595 d2ce04cc0 [Tests] Fix chain ordering in budget tests (Fuzzbawls)
  • #611 c6a57f664 [Output] Properly log reason(s) for increasing a peer's DoS score. (Fuzzbawls)
  • #649 f6bfb4ade [Utils] Add copyright header to logprint-scanner.py (Fuzzbawls)

Credits

Thanks to everyone who directly contributed to this release:

  • Fuzzbawls
  • Mrs-X
  • SHTDJ
  • Sieres
  • Warrows
  • fanquake
  • gpdionisio
  • presstab

As well as everyone that helped translating on Transifex.