[feature / already built in?]: Splicing

[eliaspfeffer]

Is splicing already possible in LND? Have only heard of CLN, LDK and Eclair which have it built in but don't know if they also have what I need for my service (lockable wallet - on LND via encrypted macaroons).

If LND already has splicing, please elaborate the command for it, as I didn't find one via lncli help
If not, then please see this as a feature request:

Problem: Upgrading channel volume is expensive (close the channel, reopen another channel with higher volume = 2 x an on-chain fee).

Feature: enable splicing. (Keep channel open, make one deposit from node on-chain wallet to the channels multi-signature wallet) = 1 x an on-chain fee).

Alternatives: Make multi-signature wallet transaction to a new multi-signature wallet (100% of the channel-size to avoid one output-channel channel for change, include the additional Bitcoin amount as second input = 2 inputs, one output on-chain. Keep Lightning Channel via this new multi-sig wallet.)

[saubyk]

Hi @eliaspfeffer Splicing is not available on LND right now. Although it's an item on the 2024 roadmap 🤞 🧭

[1ma]

If my node (CLN) supports splicing but my peer runs LND can I splice-in our channel, or do we need both nodes to support splicing?

[saubyk]

If my node (CLN) supports splicing but my peer runs LND can I splice-in our channel, or do we need both nodes to support splicing?

Both channel peers need to support splicing for it to work

[afeezaziz]

hi @Roasbeef , is splicing available in LND now?

[Abdulkbk]

hi @Roasbeef , is splicing available in LND now?

LND does not support splicing yet. See

Note that we don't support splicing yet, but we aim to make sure the final version of taproot channels is fully compatible with splicing. This new set of fields is only intended to be set with the production taproot channel feature bit. A follow up PR will actually start to gate the script and p2p message changes (like this).