When maxStalenessSeconds was reverted from a double to an integer and the 90 second limit was added (SPEC-786), the patch for CDRIVER-1933 reverted the read preference type to int64_t but URI parsing was changed to int32_t (with error reporting for 64-bit integers).

Was this intentional or an inadvertent inconsistency? The specification does not refer to any upper limit for the option, and schwerin's comment in SPEC-786 implies that a 64-bit value is perfectly valid.