firehose-grpc-listen-addrandsubstreams-tier1-grpc-listen-addrflags now accepts comma-separated addresses (allows listening as plaintext and snakeoil-ssl at the same time or on specific ip addresses)- removed old
RegisterServiceExtensionimplementation (not used anywhere anymore) - rpc-poller lib: fix fetching the first block on an endpoint (was not following the cursor, failing unnecessarily on non-archive nodes)