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CHANGELOG.md

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Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog.

2.4.2 - July 12th, 2022

Implementation of the Adequate Systems Build-C repository for CI/CD processes and build utilities. Repository restructure in preparation for version 3.0 improvements. Some non-critical bug fixes related to the handling of transactions between block updates. Improvements to Peach POW Algorithm on all Cuda capable devices.

Added

  • introduced CI/CD and build utilities "merged" in from build-c
    • includes LICENSE.md (detectable repository license)
  • added some basic unit tests for testing mochimo components
  • added codebase modules crypto-c and extended-c
  • added segfault tracing within UNIX
  • added --testnet generation option to server binary
  • added "trusted" peers (for post v3.0 Hi-Speed capabilities)
  • added sleep time to mirror child while waiting for grand-children
  • added improved miner binary with combined solo and pool capabilities
  • added duplicate process detection mechanism (for detecting duplicate mochimo servers)
  • added SO_REUSEADDR to listening socket options
  • added setup.x script for easy provisioning and testing of mochimo nodes
  • added system service registration to setup.x for easy restart capability
  • enhanced splashcreen version identification:
    • v<major>.<fork>.<minor>-<patch>-g<commit>-[dirty]

Changed

  • moved/revised github specific templates and standards
  • moved LICENSE.PDF to .github/ (github detectable LICENSE.md remains)
  • updated network routines for compatibility with extended-c module
  • replaced polymorphic shell sort in favor of Standard C's qsort()
  • reimplemented sorting, validating and updating routines such that they may be executed within the calling process
  • consolidated same type routines into compilation units
  • updated print/logging functions to use the extended-c module
  • updated server exit procedure
  • improvements to the Peach POW algorithm
  • reorganization of utility functions (util.c)
  • moved most of the gomochi setup checks into main binary
  • README with updates to repository
  • .gitignore exclusions

Fixed

  • fixed corner-case where transactions may be missed during txclean() routines and subsequently caught during validation
  • fixed illegal memory access errors typical on 30-series Cuda devices

Removed

  • removed code that was modularized in crypto-c and extended-c
  • removed debilitating memcpy() calls in the Peach Algo for Cuda devices

2.4.1 Mochimo Patch Level 37

Added

  • byte Insyncup; /* non-zero when syncup() runs */ to data.c
  • Insyncup to syncup() in syncup.c
  • addrlen to le_find() in ledger.c
  • Tagidx[] to tag.c
  • tag_free() to tag.c, update.c
  • proper time_t vtime for vstart.lck check in server.c
  • Insyncup to update() in update.c to help plog()'s
  • char *solvestr to update() to reckon pushed, solved, and updated blocks
  • Syncup Function, Removing Contention
  • mochimo/bin/d/split directory
  • send_found() to syncup.c
  • Send found message to low weight peer in refresh_ipl()
  • MTXTRIGGER to bval.c mtxval.c txclean.c txval.c config.h
  • system call to init-external.sh on initial system sync
  • system call to update-external.sh on successful block update
  • advanced support for block-explorer export functionality
  • support for third-party utility triggered system restart()
  • directories mochimo/src/test and mochimo/src/old for testing this build
  • weight checks to contention() and checkproof()
  • functions sub_weight(), and past_weight() to proof.c
  • return code to send_found() in update.c
  • sftimer for send_found() in server.c
  • vstart.lck restart trigger (Verisimility) to server.c

Changed

  • PATCHLEVEL to 37 in mochimo.c and minertest.c
  • VERSIONSTR to "37" in mochimo.c and minertest.c
  • tag_find() in tag.c, txclean.c, and mtxval.c
  • pval.c server.c, and config.h to allow 0xff pseudo-blocks
  • simplified parameter logic in tag_valid() and calls from bval and txval.c
  • bx.c to indicate tags not found in MTX
  • replaced 100 with MDST_NUM_DST in bval.c mtxval.c txclean.c
  • proof.c comments
  • syncup.c fprintf's to plog's
  • server.c ipltime from 600 to 300
  • checkproof() in proof.c
  • comments and plog's in gettx.c
  • put back V23TRIGGER check in checkproof() in proof.c
  • tried to improve comments and plog() messages.
  • swapped Bail(1) and Bail(2) to avoid recomputing past_weight() if first trailer doesn't match
  • Improved Code readability / comments for checkproof() bail conditions 6 & 7

Removed

  • bigwait from server.c
  • FILE *rlog from syncup()

Fixed

  • previous hash check in checkproof() in proof.c
  • missing error return lines in bval2() in gettx.c
  • Bugs in checkproof()
  • bug in past_weight() to skip NG blocks
  • bug in checkproof() to skip Difficulty check on init
  • bug in syncup() w/first previous NG block
  • bug in syncup() to skip NG blocks

2.4.0 Mochimo Patch Level 34

Added

  • FPGA-Resistant Algorithm
    • Extensible High-Memory Algo v24()
  • Multi-Destination Transactions
    • Scales up high volume third-party payment systems

Security

  • fixes and networking tweaks

2.3.0 Mochimo Patch Level 33

Added

  • Pseudoblocks for mid-block difficulty adjustment
    • Impossible for blocks to exceed 15m49s after v2.3
  • security fixes to MROOT creation
    • Removes certain spoofing attack vectors
  • support for ZERO-tag OP_BAL Requests
    • Allows address lookup and balance query without TAG
    • Allows wallet recovery from seed phrase
  • TXCLEAN Queue Re-validation following block updates
    • Prevents known cornercase block validation failures
    • Prevents all attack vectors involving poisoned TXs in the TXCLEAN queue
  • low-balance pruning consensus mechanism (CAROUSEL)
    • Allows the community to clean low balances out of the ledger by consensus
    • Keeps the blockchain free of bloat, and recovers from spam attacks
  • optional mining fee adjustment per miner
    • Allows future miners to create a mining fee market after mining rewards are gone
  • TFILE PoPOW Chain in OP_FOUND
    • Allows nodes to definitively confirm an advertising node really solved a block
  • Watchdog timer to restart and resync if no blocks solved or updated in 30 minutes +/- 10 minutes
    • Prevents Block of Death, Stuck at 0x0 events caused by temporary internet outage for nodes
    • Allows nodes to dynamically recover from any number of possible failure cases
  • Upload Bandwidth limit (default = 5MB/s Upload, user configurable)
    • Prevents certain kinds of spam attacks against nodes
  • NOMINER feature, initialized with -n at runtime
    • Allows a node to run in relay mode only without mining blocks
  • command line compile options for CPU or GPU, merging both development branches
    • Involed with ./makeunx bin -DCPU -or- ./makeunx bin -DCUDA

Changed

  • inbound TX uniqueness test (CRC) with address-based validation
    • Allows the system to scale past 65,536 TXs per block at some indeterminate future date

2.2.0 Mochimo Patch Level 32

Added

  • support for diverse nVidia GPU Models
  • OPCODE 15 & 16 (pull candidate / push solved blocks)
  • support for Headless Miners and Mining Pools
  • node capability bits to identify server capabilities during handshake
  • new execute and dispatch functions for handling headless miner requests
  • new reaping function for terminating stale child processes related to headless miners

Changed

  • CUDA Code optimizations for average HP/s +10-20%
  • improved sanity checking in get_eon (prep for ring signatures)
  • adjusted wait time up to 300 seconds from 180 if no quorum found

Fixed

  • random seed issue in rand.c
  • various community requested patches

2.0.0 Mochimo Patch Level 31

October 27th, 2018

Added

  • added new open source license
  • added trigger block for new weight calculation as 17185 (0x4321)
  • added trigger block for new reward calculation as 17185 (0x4321)
  • added trigger block for new difficulty calculation as 17185 (0x4321)
  • added trigger block for tag system validation checks as 17185 (0x4321)
  • added dynamic start nodes list download from mochimap.net
  • added tag.c, tag related fixes throughout
  • added wallet Build 31 with tag support

Changed

  • update system version number to 2
  • updated default coreip.lst
  • reorganized source code distro in prep for Github
  • Adjusted TXVAL to insist src addresses must fully spent
  • Enabled balance forwarding to change address
  • bup.c
    • patch a bunch of stuff
    • balances debit '-' first, then credit 'A'
  • bval.c
    • trancodes: '-' and 'A'
    • enforces no tag on bh.maddr
    • tag mods
    • permanent future time fix
  • bupdata.c
    • new set_difficulty() with preset trigger
    • new set_difficulty() block trigger = 16383
  • gomochi
    • sleep set to 1 second
    • added dynamic startnodes.lst download
  • init.c
    • new add_weight() improved block weight fork on block trigger
    • new add_weight() -DNEWWEIGHT forks chain on block trigger
    • get_eon(): timeout set to 180
    • modified read_coreipl() and init_coreipl()
    • permanent future time fix
  • data.c: #define CORELISTLEN 16
  • gettx.c: added contention(), catchup(), and bval2()
  • server.c: removed LULL timer
  • txclean.c: fixed unlink(argv parameter 1) bug
  • util.c: new get_mreward() on block trigger

Removed

  • removed default maddr.dat
  • removed txq1.lck (process_tx() is now synchronous)