lnd/docs/release-notes/release-notes-0.19.0.md

Release Notes

• Bug Fixes
• New Features
  • Functional Enhancements
  • RPC Additions
  • lncli Additions
• Improvements
  • Functional Updates
  • RPC Updates
  • lncli Updates
  • Breaking Changes
  • Performance Improvements
• Technical and Architectural Updates
  • BOLT Spec Updates
  • Testing
  • Database
  • Code Health
  • Tooling and Documentation

Bug Fixes

• Fixed a bug to correctly propagate mission control and debug level config values to the main LND config struct so that the GetDebugInfo response is accurate.

• Fix a bug that would cause a nil pointer dereference during the probing of a payment request that does not contain a payment address.

• Fixed a bug where we would not signal an error when trying to bump an non-anchor channel but instead report a successful cpfp registration although no fee bumping is possible for non-anchor channels anyways.

• Use the required route blinding feature-bit for invoices containing blinded paths.

• Fix a bug that prevented a graceful shutdown of LND during the main chain backend sync check in certain cases.

• Fixed a bug where dust htlcs although not being able to be resolved onchain were not canceled back before the commitment tx was confirmed causing potentially force closes of the incoming channel.

New Features

Functional Enhancements

RPC Additions

• Add a new rpc endpoint BumpForceCloseFee which moves the functionality soley available in the lncli to LND hence making it more universal.

• The walletrpc.FundPsbt RPC method now has an option to specify the fee as sat_per_kw which allows for more precise fees.

• The walletrpc.FundPsbt method now has a new option to specify the maximum fee to output amounts ratio.

lncli Additions

• A pre-generated macaroon root key can now be specified in lncli create and lncli createwatchonly to allow for deterministic macaroon generation.

• The lncli wallet fundpsbt sub command now has a --sat_per_kw flag to specify more precise fee rates.

• The lncli wallet fundpsbt command now has a --max_fee_ratio argument to specify the max fees to output amounts ratio.

Improvements

Functional Updates

• Allow the compression of logs during rotation with ZSTD via the logging.file.compressor startup argument.

• The SCB file now [contains more data][https://github.com/lightningnetwork/lnd/pull/8183] that enable a last resort rescue for certain cases where the peer is no longer around.

• LND updates channel.backup file at shutdown time.

RPC Updates

lncli Updates

Code Health

• Add retry logic for watchtower block fetching with a max number of attempts and exponential back-off.

• Moved profile related config settings to its own dedicated group. The old ones still work but will be removed in a future release.

• Update to use structured logging. This also introduces a new --logging.console.disable option to disable logs being written to stdout and a new --logging.file.disable option to disable writing logs to the standard log file. It also adds --logging.console.no-timestamps and --logging.file.no-timestamps which can be used to omit timestamps in log messages for the respective loggers. The new --logging.console.call-site and --logging.file.call-site options can be used to include the call-site of a log line. The options for this include "off" (default), "short" (source file name and line number) and "long" (full path to source file and line number). Finally, the new --logging.console.style option can be used under the dev build tag to add styling to console logging.

• Add max files and max file size options to the logging config namespace under new --logging.file.max-files and --logging.files.max-file-size options. The old options (--maxlogfiles and --maxlogfilesize) will still work but deprecation notices have been added and they will be removed in a future release. The defaults values for these options have also been increased from max 3 log files to 10 and from max 10 MB to 20 MB.

Breaking Changes

Performance Improvements

• Log rotation can now use ZSTD

• A new method AssertTxnsNotInMempool has been added to lntest package to allow batch exclusion check in itest.

Technical and Architectural Updates

BOLT Spec Updates

• Add new lnwire messages for the Gossip 1.75 protocol.

Testing

Database

• Migrate the mission control store to use a more minimal encoding for payment attempt routes as well as use pure TLV encoding.

• Migrate the mission control store so that results are namespaced. All existing results are written to the "default" namespace.

Code Health

Tooling and Documentation

• Improved lncli create command help text by replacing the word argument with input in the command description, clarifying that the command requires interactive inputs rather than arguments.

Contributors (Alphabetical Order)

• Animesh Bilthare
• Boris Nagaev
• CharlieZKSmith
• Elle Mouton
• George Tsagkarelis
• Pins
• Viktor Tigerström
• Ziggie