- minrelayfee is still server-reported, but the clamps are changed from [1, 50] to [0.1, 50] sat/vbyte
- dynamic feerates coming from the estimator are still clamped to [1, 1500] sat/vbyte
ref https://github.com/bitcoin/bitcoin/pull/33106
so that with a feerate of 0.1 sat/vbyte, for a tx of size 141 vbytes, the fee is 15 sat (instead of 14 sat)
(assuming a min relay fee of 0.1 s/b, the tx needs to pay a minimum of 15 sats to propagate)
the update_fee logic for lightning channels was not adapted to anchor
channels causing us to send update_fee with a eta target of 2 blocks.
This causes force closes when there are mempool spikes as the fees we
try to update to are a lot higher than e.g. eclair uses. Eclair will
force close if our fee is 10x > than their fee.
- Wallet.make_unsigned_transaction takes a FeePolicy parameter
- fee sliders act on a FeePolicy instead of config
- different fee policies may be used for different purposes
- do not detect dust outputs in lnsweep, delegate that to lnwatcher
