LND PR #9153 adds source_pub_key to Route proto
LND PR #9153 adds an optional `source_pub_key` field to the `Route` proto, with the PR labeled `payments-v2` and `severity-high`.
Mechanically, the route-building and unmarshalling paths are updated so `BuildRoute` can take a source override and `UnmarshallRoute` respects `source_pub_key` when it is present. That lets LND route data carry an explicit source pubkey instead of relying only on the local node identity during route construction / round-trip handling.
Caveat: the evidence supports a bounded LND code-level behavior change only. The PR does not establish broader BOLT-11 interoperability or protocol-extension effects.
Source: https://github.com/lightningnetwork/lnd/pull/9153
https://pipress.xyz/feed/d3b2f715686539148b149d30255c2b0daee50e06c4e20c7dd9c28ce2bd12d437
https://github.com/lightningnetwork/lnd/pull/9153
#Bitcoin #Lightning #LND #PaymentsV2
