Litecoin Core v0.21.5.4 Release

Litecoin Core v0.21.5.4 Release

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Litecoin Core version 0.21.5.4 is now available.

This release includes important security updates. All node operators and wallet users are strongly encouraged to upgrade ASAP.

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

Notable changes

Important Security Updates

This release contains fixes for the following security issues:

• e7cbf1d: Belt-and-suspenders input commitment and public key checks on MWEB inputs, providing additional defense-in-depth
  during MWEB transaction validation.
• 1dcbf3f: MWEB consensus fix addressing an input validation issue that could allow the MWEB kernel sum to become unbalanced.
  This corrects MWEB input/output accounting going forward and is a required upgrade for all node operators, miners, and wallet users.
• 42e7071: Prevent kernel fee overflow during MWEB transaction validation.
• 742ee94: Erase block data for mutated blocks to avoid miner DoS
• f423a84: Miners no longer include MWEB transactions when the input and output commitments in the block would sum to zero.

MWEB stability and durability fixes

• 23e5eac: fix data corruption issue on PMMR rewind
• bf25a7c, 3110a7e: improve file write durability for MMRs

Wallet

• eae9e47: add MWEB view keys to `dumpwallet` output
• 3c3aedb, c882663 : fix wallet with Boost library >= 1.78
• 1cc1cee: wallet: quick pegout accounting fix

RPC and indexing

• 455aff8: allow `getblocktemplate` for test chains when unconnected or in IBD
• eb7f68a: fix an issue where transaction indexes of a block could be lost when `WriteBlock` failed after `Commit`

Build changes

• 6fc0530: fix debug build conflict with logger symbol
• 58f89ba: add missing `<cstdint>` include
• dcc7bc5: convert CRLF (Windows) line endings to LF (Linux) line endings

Test related fixes

• 0c59e99: functional test framework fix
• 7eb181b: functional test demonstrating handling of mutated blocks

Misc

• 0f5f7d5: fix broken Transifex link from README

Credits

Thanks to everyone who directly contributed to this release:

– The Bitcoin Core Developers
– David Burkett
– Hector Chu
– Loshan
– Luke E. McKay
– Soren Stoutner
– Jorge Maldonado Ventura
– yujianxian
– AlexRadik

Litecoin Core v0.21.5.4 Release was originally published in Litecoin Project on Medium, where people are continuing the conversation by highlighting and responding to this story.