Merge pull request #2602 from TheBlueMatt/2023-09-descriptor-hash

[rust-lightning] / pending_changelog / kvstore.txt

## Backwards Compatibility

* Users migrating custom persistence backends from the pre-v0.0.117 `KVStorePersister` interface can use a concatenation of `[{namespace}/[{sub_namespace}/]]{key}` to recover a `key` compatible with the data model previously assumed by `KVStorePersister::persist`.