New featuresEdit
- Memory compression: Support for LZ4 memory page and block compression with multi-threaded decompression
- Support for AArch64 / ARM64 Guarded Control Stack (GCS)
- Parallelize memfd and anonymous shared memory content restore via async daemon (asyncd)
- Restorer: Restore VMA pages with Linux native AIO
- Add --image-io-mode option to support O_DIRECT reads/writes for pages images
- plugins/amdgpu: Support checkpoint and restore of DRM buffer objects and DMA-BUF file descriptors
- Support for Linux kernel binfmt_misc sandboxing
- Add UPDATE_INETSK hook for socket address rewrite during restore
- crit: Add offline compress and decompress commands for memory images
- criu: Add collection and restoration of timer_slack_ns per thread
- restore: Fix exit code and wait status truncation for zombie processes
- restorer/pagemap: Detect EOF on truncated pages file to prevent infinite loops
- file-lock: Fix type confusion in broken read lease restore
- soccr: Restore TCP_REPAIR_WINDOW before TCP_SEND_QUEUE to avoid window collapse
- sk-queue: Fix SCM restore for packets containing both SCM_RIGHTS and SCM_CREDENTIALS
- sk-unix: Fix mutex deadlock on connect failure in standalone restore
- pipes: Restore pipe ownership to fix /proc/self/fd access permissions
- compel: Fix heap alignment for structs with XSAVE state
- fsnotify: Fix memory and file descriptor leaks in inotify/fanotify error paths
- pycriu: Fix self-dump failure when explicit PID is provided
ImprovementsEdit
- compel/infect: Optimize task interception and stop tasks without hardware breakpoints
- restorer: Switch thread synchronization to atomic operations
- restore: Parallelize task stopping in attach_to_tasks and catch_tasks
- fsnotify: Add overlayfs directory walk fallback for inotify watches
- sockets: Support dumping and restoring ucred for Unix and Netlink sockets
- coredump: Enable coredump generation on riscv64
- contrib: Add reference client and test suite for criu-service
- docs: Major overhaul and export of "Under the Hood" architecture documentation
- ci: Consolidate test workflows, shard test suites, and add Lima-based kernel test jobs
