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lnwallet: improve ErrBelowChanReserve error message #10607

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lnwallet: improve ErrBelowChanReserve error message #10607

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5e2dae7
lnwallet: improve ErrBelowChanReserve error message
Euler-B Feb 24, 2026
f0446c8
docs: add release-notes
Euler-B Mar 4, 2026
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6 changes: 6 additions & 0 deletions docs/release-notes/release-notes-0.20.1.md
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Expand Up @@ -94,6 +94,12 @@
channels scale proportionally using the standard 0.16 BTC threshold (matching
funding confirmation scaling).

* [Improved error message clarity](https://github.com/lightningnetwork/lnd/pull/10607)
when a transaction would cause a peer's balance to fall below the channel
reserve. The error message has been updated to be more user-friendly,
notifying that the transaction was rejected because the minimum safety
balance must be preserved.

## RPC Updates

* The `EstimateRouteFee` RPC now implements an [LSP detection
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4 changes: 2 additions & 2 deletions lnwallet/channel.go
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Expand Up @@ -64,8 +64,8 @@ var (

// ErrBelowChanReserve is returned when a proposed HTLC would cause
// one of the peer's funds to dip below the channel reserve limit.
ErrBelowChanReserve = fmt.Errorf("commitment transaction dips peer " +
"below chan reserve")
ErrBelowChanReserve = fmt.Errorf("transaction rejected: " +
"peer must preserve its minimum safety balance")

// ErrBelowMinHTLC is returned when a proposed HTLC has a value that
// is below the minimum HTLC value constraint for either us or our
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