Download the latest Bitcoin Cash compatible release of Bitcoin Unlimited (1.5.0.0, October 12th, 2018) from:
https://www.bitcoinunlimited.info/download
This release is a major release which is compatible with the Bitcoin Cash compatible with the Bitcoin Cash specifications you could find here:
- https://github.com/bitcoincashorg/bitcoincash.org/blob/master/spec/uahf-technical-spec.md (Aug 1st '17 Protocol Upgrade)
- https://github.com/bitcoincashorg/bitcoincash.org/blob/master/spec/nov-13-hardfork-spec.md (Nov 13th '17 Protocol Upgrade)
- https://github.com/bitcoincashorg/bitcoincash.org/blob/master/spec/may-2018-hardfork.md (May 15th '18 Protocol Upgrade)
- https://github.com/bitcoincashorg/bitcoincash.org/blob/master/spec/2018-nov-upgrade.md (Nov 15th '18 Protocol Upgrade)
List of notable changes and fixes to the code base:
- Implementation of November 2018 upgrades feature (see the specification for more details)
- CTOR: Canonical Transaction Ordering
- CDSV: OP_CHECKDATASIG[VERIFY]
- CLEAN_STACK: Enforce "clean stack" rule
- FORCE_PUSH: Enforce "push only" rule for scriptSig
- 100 byte MIN TXN SIZE: Enforce minimum transaction size
- Add configuration parameters to allow miners to specify their BIP135 votes. See this guide from more details
- Multithreaded transaction admission to the mempool (ATMP)
- Parallelize message processing
- Fastfilters: a faster than Bloom Filter probabilistic data structure
- Various improvements to the Request Manager
- Add tracking of ancestor packages and expose ancestor/descendant information over RPC
- Remove trickle logic in dealing with transactions INV
- Implement shared lock semantics for the UTXO
Release notes: https://github.com/BitcoinUnlimited/BitcoinUnlimited/blob/dev/doc/release-notes/release-notes-bucash1.5.0.0.md
Ubuntu PPA repository for BUcash 1.5.0.0 will be updated later today.
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