Download/criu

Latest version

Tarball:	criu-4.3.tar.gz
Version:	4.3 "CRIURBO"
Released:	19 Oct 2026
GIT tag:	v4.3

New features

• 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
• plugins/cuda: Add CUDA Driver API checkpoint backend and GPU device mapping on restore.
• service/page-xfer: Support image streaming (--stream) over RPC and incremental streamed dumps with --prev-images-dir
• criu: Support dumping and restoring inet socket UIDs
• plugins: Pass namespaced PLUGIN.NAME=VALUE options to plugins as argv
• rpc/libcriu: Expose page-server TLS options, --stream, --lazy-pages, and cgroup options in libcriu

Bugfixes

• 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
• seize/compel: Always trace clone/fork/vfork on seized tasks and verify no new tasks were created during CHECKPOINT_DEVICES

Improvements

• 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
• docs: Add CRIU image security and workload security considerations guides
• page-xfer: Support sending compressed page-server data over TLS
• cgroup: Clone /sys/fs/cgroup mount with OPEN_TREE_CLONE when dumping cgroup v2

Old versions

4.x

The following 4.x releases were made:

• 4.3 "CRIURBO"
• 4.2.2 "CRIUTIBILITY"
• 4.2.1 "CRIUTIBILITY"
• 4.2 "CRIUTIBILITY"
• 4.1.1 "CRISCV"
• 4.1 "CRISCV"
• 4.0 "CRIUDA"

3.x

The following 3.x releases were made:

• 3.19 "Bronze Peacock"
• 3.18 "Silver Sandpiper"
• 3.17.1 "Radiant Redstart"
• 3.17 "Radiant Redstart"
• 3.16.1 "Petrified Puffin"
• 3.16 "Petrified Puffin"
• 3.15 "Titanium Falcon"
• 3.14 "Platinum Peacock"
• 3.13 "Silicon Willet"
• 3.12 "Ice Penguin"
• 3.11 "Glass Flamingo"
• 3.10 "Granite Eagle"
• 3.9 "Sand Martin"
• 3.8.1 "Snow Bunting"
• 3.8 "Snow Bunting"
• 3.7 "Vinyl Magpie"
• 3.6 "Alabaster Finch"
• 3.5 "Clay Jay"
• 3.4 "Cobalt Swan"
• 3.3 "Crystal Pelican"
• 3.2.1
• 3.2 "Tin Hoopoe"
• 3.1 "Graphene Swift"
• 3.0 "Basalt Wagtail"

2.x

The following 2.x releases were made:

• 2.12.1
• 2.12 "Vulcanite Rook"
• 2.11.1
• 2.11 "Acrylic Bullfinch"
• 2.10 "Brass Waxwing"
• 2.9 "Silk Tit"
• 2.8 "Bronze Siskin"
• 2.7 "Rubber Owl"
• 2.6 "Paper Crane"
• 2.5 "Concrete Oriole"
• 2.4 "Marble Lark"
• 2.3 "Wooden Duck"
• 2.2 "Carbon Nightingale"
• 2.1 "Steel Lapwing"
• 2.0

1.x

The following 1.x releases were made:

• 1.8
• 1.7.2
• 1.7
• 1.6.1
• 1.6
• 1.5.2
• 1.5.1
• 1.5
• 1.4
• 1.3.1
• 1.3
• 1.3-rc2
• 1.3-rc1
• 1.2
• 1.1
• 1.1-rc2
• 1.1-rc1
• 1.0

0.x

The following 0.x releases were made:

• 0.8
• 0.7
• 0.6
• 0.5
• 0.4
• 0.3
• 0.2
• 0.1

See also

• Changelogs to see all the changelogs on a single page.