rust-lightning/pending_changelog/matt-rm-retryable-secret.txt

## Backwards Compatibility
 * Payments sent with the legacy `*_with_route` methods on LDK 0.0.115+ will no
   longer be retryable via the LDK 0.0.114- `retry_payment` method (#XXXX).
Remove the `PaymentSecret` field from `HTLCSource::OutboundRoute` Many of the fields in `HTLCSource::OutboundRoute` are used to rebuild the pending-outbound-payment map on reload if the `ChannelManager` was not serialized though `ChannelMonitor`(s) were after an HTLC was sent. As of 0.0.114, however, such payments are not retryable without allowing them to fail and doing a full, fresh, send. Thus, some of the fields can be safely removed - we only really care about having enough information to provide the user a failure event, not being able to retry. Here we drop one such field - the `payment_secret`, making our `ChannelMonitorUpdate`s another handful of bytes smaller. 2023-03-22 19:15:52 +00:00			`## Backwards Compatibility`
			* Payments sent with the legacy `*_with_route` methods on LDK 0.0.115+ will no
			longer be retryable via the LDK 0.0.114- `retry_payment` method (#XXXX).