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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.

2.4.3 - June 1st, 2023

Service setup updates and improvements to miner for RTX4090 and future performance advancement of GPU architectures.

Changed

  • mochimo.service now waits for network to be available before starting
  • setup script no longer install erroneous amounts of git software (installs git instead of git-all)
  • moved a reasonable amount of CPU work to the GPU to improve performance of powerful GPUs on low tier hardware (specifically the RTX4090, but will also apply to future generations of GPU)

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)