v57.2 is a point release of Perfetto v57 which fixes an issue in Trace Processor where it failed to parse traces that embed their own proto descriptors after wire-compatible schema changes. Specifically, this addresses failures occurring after widening previous_packet_dropped from bool to uint32 and removing AndroidCamera* fields.
Note: For all other changes in Perfetto v57, please refer to the release notes for v57.1.