LND Release Highlights

• RBF Cooperative Closes - New protocol for fee bumping channel closes using RBF instead of negotiation, allowing either party to increase fees using their own funds

• Major Bug Fixes - Fixed critical issues including payment failures, shutdown hangs, fee estimation crashes, and stuck payments during restarts

• Enhanced Fee Management - Improved sweeper logic to attempt sweeps when budget is partially covered rather than waiting for full coverage

• SQL Migration Progress - Continued migration from KV to SQL databases, with invoices now migrated to SQL

• Structured Logging - Complete overhaul to structured logging with new configuration options for console/file output, timestamps, and styling

• Breaking CLI Changes - lncli listchannels field names updated: chan_id renamed to scid, with new proper chan_id field

• Testnet4 Support - Added support for Bitcoin's new testnet4 network

• API Deprecations - Several v1 payment RPCs will be removed in v0.21, users should migrate to v2 methods

• Performance Improvements - Gossip bandwidth limiting, log compression with ZSTD, and reduced redundant iterations

• New RPC Features - Force close fee bumping API, PSBT funding enhancements, and mission control data loading commands