- return `1` from `wolfSSL_BIO_set_mem_eof_return` instead of `0` for success
- bind requires ALPN
- `OPENSSL_COMPATIBLE_DEFAULT` defined for bind
- `WOLFSSL_ERROR_CODE_OPENSSL` defined when using compatibility layer
- return `bio->eof` on no pending data to read in memory BIO (defaults to `WOLFSSL_BIO_ERROR`)
- `flags` is no longer an input parameter in `wolfSSL_ERR_get_error_line_data`
- allow lazy parameter loading in `wolfSSL_DH_set0_key`
- implement reference counter in `WOLFSSL_EC_KEY`
- load serial number from `x509->serialNumber` if `x509->serial` is empty
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