During December 2024, Yuan Liu focused on enhancing migration stability in the espressif/qemu repository, addressing data integrity issues when using QPL and qatzip compression with zero pages. Working in C and leveraging expertise in system programming and memory management, Yuan resolved edge cases where zero and normal pages could flip during migration, which previously risked incorrect data transfer. By updating the IOV of MultiFDPacket_t and ensuring accurate recording of normal pages on the target side, Yuan’s bug fix improved correctness and reliability for compressed migrations. The work demonstrated careful attention to regression risks, strengthening production data migration workflows.