Changelog

All notable changes to the subprojects will be documented in this file.

The format is based on Keep a Changelog.

[0.3.1] - 2025-07-14

gl-client 0.3.1 released, including the signer for CLN v.25.05. Upgrading the client and signer will trigger an upgrade on the server, and you will be using the latest and greatest CLN version going forward.
Added support to trampoline_pay, a payment exection engine that delegates route selection and payment execution to the LSP node.
Several signer policies have been relaxed in order to prevent signer rejections. Some rejections are still happening due to a mismatch in CLN and VLS data models, but most should be fixed.
A standalone gl-testserver subproject allows testing non-python clients by spinning up a mock Greenlight system in a box, and then run tests against it. (#539)
A python-specific subprohect gl-testing allows writing extensive pytest tests against Greenlight. If you are using Python, this is a great way to test your project
Added CLN v24.11 as supported version on the server.
Added a rust-based glcli command line client replacing the python glcli

trampoline_pay performs a preflight check to see if we have enough spendable_msat before attempting the trampoline payment. (#585)

Fixed a logic error relating to zeroconf channels, and forgetting channels that did not confirm for prolonged periods.

Capture and report signer rejections back to the node (#483, #484).
Add trampoline client to delegate route finding to next node (#475, #489, #498, #505, #511).
Add basic support for signer-less devices (#281).

Ensure that signer doesn't exit on network change (#524)
Signer reports the node id by itself (#520)
Upgrade to VLS 0.12 (#504).
Add .resources dir to all crates in repo. This is soley to make it possible to publish artefacts (#501)

The methods that used to be in greenlight.proto that have been superseded with the node.proto version have been removed on the server side. The proto file now contains only Greenlight-specific functionality (#317.

The Node Domain has been enabled. This means that ever node now has a unique URL at which the node can always be reached, without having to explicitly schedule it first. This allows bypassing of the scheduler, reducing the time required to start and connect to a node.
The plugin now wait for the node to complete its startup before forwarding RPC commands.
Calls to cln.Node/Invoice now always include all possible routehints. Possible in this case refers to channels with peers that are currently in state CHANNELD_NORMAL, both disconnected and connected.
The gl-plugin will now wait for both the initial gossip sync and the reconnection to the peers to complete, before allowing pay through. This cuts down on spurious payment failures due to missing peers or incomplete network view for routing.
The gl-client library and the language bindings have keepalive messages enabled, with a timeout of 90 seconds. This ensures that clients and signers that have been silently disconnected, e.g., by suspending the device or losing network connectivity, will notice and reconnect. #220

An issue concerning reconnecting to peers, if the signer attaches before the underlying JSON-RPC has become available has been fixed. This issue would cause peers to remain disconnected despite a signer being attached. #210 & #204

The JS bindings where clobbering the error messages due to incorrect context use. Now we return errors as they are emitted.
The scheduler no longer allows creating regtest nodes, since they are unusable without a faucet to get coins for it.
Temporarily removed the JS bindings. We will the bindings over to uniffi, and the JS bindings were outdated and unused. But they'll be back.
The API has been simplified by removing methods that were both in greenlight.proto as well as node.proto. The latter is from the autogenerated cln-grpc which supercedes the greenlight.proto methods.
Payment optimizations: we are working on getting the success rate for payments up, and the time to completion down, focusing on success rate first.