trace_* or erigon_* namespaces. Migrate the trace_* methods to their debug_* equivalents:
On Bor,
debug_trace* with flatCallTracer returns traces in the Parity-style flat format, matching the shape of the Erigon trace_* output, so you can reuse your existing trace-parsing logic. The erigon_* convenience methods have no Bor equivalent — use the standard eth_* methods instead.
On Bor, eth_getProof returns state proofs only for roughly the latest 128 blocks; historical proof queries are not available.