Add option_zero_reserve (FEATURE 64/65)
#1140
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Lightning channels require nodes to lock some of their channel funds into a channel reserve, which cannot be used for payments made on that channel. This guarantees that both nodes always have an output in the commitment transaction, which they will lose if they publish a revoked commitment. While this requirement is generally useful, it creates inefficiencies since that liquidity can't be used to relay payments, and provides a bad user experience. In some settings, we may want to remove that channel reserve and allow nodes to use all of their channel funds. The `option_zero_reserve` feature lets nodes advertise that they allow their peers to disable the channel reserve on their side, and may lift the same requirement in response.
This was referenced Feb 16, 2024
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This was referenced Sep 6, 2024
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Any traction on this? Will this option work with already opened channels, or only affect the future ones? |
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This is implemented on our side, this proposal is waiting for reviews and implementation by the other teams. |
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Lightning channels require nodes to lock some of their channel funds into a channel reserve, which cannot be used for payments made on that channel. This guarantees that both nodes always have an output in the commitment transaction, which they will lose if they publish a revoked commitment.
While this requirement is generally useful, it creates inefficiencies since that liquidity can't be used to relay payments, and provides a bad user experience. In some settings, we may want to remove that channel reserve and allow nodes to use all of their channel funds.
The
option_zero_reservefeature lets nodes advertise that they allow their peers to disable the channel reserve on their side, and may lift the same requirement in response.This is an alternative to #1133