This hotfix release re-introduces a temporary shim that includes the final CLTV delta in the invoice even if the default of 18 is used. This is necessary since the default changed, and for backwards compatibility we were always specifying it. We removed it expecting that all modern implementations had switched to 18 blocks by default, but some did not, and caused payments to fail if the sender still had a default of 9 configured.
Fixed
- Default bolt11 invoices are payable by LND nodes.