lnd/docs/release-notes/release-notes-0.19.1.md

Release Notes

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

Bug Fixes

• Fixed a memory leak by threading through parent context.

• Fix a serialisation bug that would occur when an attempt was made to write a backup file for a channel peer that has advertised an address that we do not yet know how to parse.

• Fixed a case where the BumpFee doesn't give an error response.

• Fixed a case where a peer would not disconnect properly when both peers supported the new "rbf-coop-close" feature leaving the peer connection in a borked state.

• Fixed a case where LND would crash because of misaligned of a data struct on 32 bit systems.

• Fixed a case where a peer may be treated as restricted peer although it used to have a channel with the node.

New Features

Functional Enhancements

• Increase gossip sync buffer to take the pressure of the read handler.

RPC Additions

lncli Additions

Improvements

Functional Updates

• The correct production feature bit for RBF coop close is now signaled.

RPC Updates

lncli Updates

Code Health

Breaking Changes

Performance Improvements

Deprecations

⚠️ Warning: The following RPCs will be removed in release version 0.21:

Deprecated RPC Method	REST Equivalent	HTTP Method	Path	Replaced By
lnrpc.SendToRoute routerrpc.SendToRoute	❌ (No direct REST equivalent)	—	—	routerrpc.SendToRouteV2
lnrpc.SendPayment routerrpc.SendPayment	✅	POST	/v1/channels/transaction-stream	routerrpc.SendPaymentV2
lnrpc.SendToRouteSync	✅	POST	/v1/channels/transactions/route	routerrpc.SendToRouteV2
lnrpc.SendPaymentSync	✅	POST	/v1/channels/transactions	routerrpc.SendPaymentV2
router.TrackPayment	❌ (No direct REST equivalent)	—	—	routerrpc.TrackPaymentV2

🚨 Users are strongly encouraged to transition to the new V2 methods before release 0.21 to ensure compatibility:

New RPC Method	REST Equivalent	HTTP Method	Path
routerrpc.SendToRouteV2	✅	POST	/v2/router/route/send
routerrpc.SendPaymentV2	✅	POST	/v2/router/send
routerrpc.TrackPaymentV2	✅	GET	/v2/router/track/{payment_hash}

Technical and Architectural Updates

BOLT Spec Updates

Testing

Database

Code Health

Tooling and Documentation

Contributors (Alphabetical Order)

• Elle Mouton
• ffranr
• Oliver Gugger
• Yong Yu
• Ziggie