containerd 2.1.0 Welcome to the v2.1.0 release of containerd! The first minor release of containerd 2.x focuses on continued stability alongside new features and improvements. This is the first time-based released for containerd. Most the feature set and core functionality has long been stable and harderened in production environments, so now we transition to a balance of timely delivery of new functionality with the same high confidence in stability and performance. ### Highlights * Add no_sync option to boost boltDB performance on ephemeral environments ([#10745](https://github.com/containerd/containerd/pull/10745)) * Add content create event ([#11006](https://github.com/containerd/containerd/pull/11006)) * Erofs snapshotter and differ ([#10705](https://github.com/containerd/containerd/pull/10705)) #### Container Runtime Interface (CRI) * Update CRI to use transfer service for image pull by default ([#8515](https://github.com/containerd/containerd/pull/8515)) * Support multiple cni plugin bin dirs ([#11311](https://github.com/containerd/containerd/pull/11311)) * Support container restore through CRI/Kubernetes ([#10365](https://github.com/containerd/containerd/pull/10365)) * Add OCI/Image Volume Source support ([#10579](https://github.com/containerd/containerd/pull/10579)) * Enable Writable cgroups for unprivileged containers ([#11131](https://github.com/containerd/containerd/pull/11131)) * Fix recursive RLock() mutex acquisition ([containerd/go-cni#126](https://github.com/containerd/go-cni/pull/126)) * Support CNI STATUS Verb ([containerd/go-cni#123](https://github.com/containerd/go-cni/pull/123)) #### Image Distribution * Retry last registry host on 50x responses ([#11484](https://github.com/containerd/containerd/pull/11484)) * Multipart layer fetch ([#10177](https://github.com/containerd/containerd/pull/10177)) * Enable HTTP debug and trace for transfer based puller ([#10762](https://github.com/containerd/containerd/pull/10762)) * Add support for unpacking custom media types ([#11744](https://github.com/containerd/containerd/pull/11744)) * Add dial timeout field to hosts toml configuration ([#11106](https://github.com/containerd/containerd/pull/11106)) #### Node Resource Interface (NRI) * Expose Pod assigned IPs to NRI plugins ([#10921](https://github.com/containerd/containerd/pull/10921)) #### Runtime * Support multiple uid/gid mappings ([#10722](https://github.com/containerd/containerd/pull/10722)) * Fix race between serve and immediate shutdown on the server ([containerd/ttrpc#175](https://github.com/containerd/ttrpc/pull/175)) #### Breaking * Update FreeBSD defaults and re-organize platform defaults ([#11017](https://github.com/containerd/containerd/pull/11017)) #### Deprecations * Postpone cri config deprecations to v2.2 ([#11684](https://github.com/containerd/containerd/pull/11684)) * Remove deprecated dynamic library plugins ([#11683](https://github.com/containerd/containerd/pull/11683)) * Remove the support for Schema 1 images ([#11681](https://github.com/containerd/containerd/pull/11681)) Please try out the release binaries and report any issues at https://github.com/containerd/containerd/issues. ### Contributors * Derek McGowan * Phil Estes * Akihiro Suda * Maksym Pavlenko * Jin Dong * Wei Fu * Sebastiaan van Stijn * Samuel Karp * Mike Brown * Adrien Delorme * Austin Vazquez * Akhil Mohan * Kazuyoshi Kato * Henry Wang * Gao Xiang * ningmingxiao * Krisztian Litkey * Yang Yang * Archit Kulkarni * Chris Henzie * Iceber Gu * Alexey Lunev * Antonio Ojea * Davanum Srinivas * Marat Radchenko * Michael Zappa * Paweł Gronowski * Rodrigo Campos * Alberto Garcia Hierro * Amit Barve * Andrey Smirnov * Divya * Etienne Champetier * Kirtana Ashok * Philip Laine * QiPing Wan * fengwei0328 * zounengren * Adrian Reber * Alfred Wingate * Amal Thundiyil * Athos Ribeiro * Brian Goff * Cesar Talledo * ChengyuZhu6 * Chongyi Zheng * Craig Ingram * Danny Canter * David Son * Fupan Li * HirazawaUi * Jing Xu * Jonathan A. Sternberg * Jose Fernandez * Kaita Nakamura * Kohei Tokunaga * Lei Liu * Marco Visin * Mike Baynton * Qiyuan Liang * Sameer * Shiming Zhang * Swagat Bora * Teresaliu * Tony Fang * Tõnis Tiigi * Vered Rosen * Vinayak Goyal * bo.jiang * chriskery * luchenhan * mahmut * zhaixiaojuan ### Dependency Changes * **github.com/Microsoft/hcsshim** v0.12.9 -> v0.13.0-rc.3 * **github.com/cilium/ebpf** v0.11.0 -> v0.16.0 * **github.com/containerd/cgroups/v3** v3.0.3 -> v3.0.5 * **github.com/containerd/containerd/api** v1.8.0 -> v1.9.0 * **github.com/containerd/continuity** v0.4.4 -> v0.4.5 * **github.com/containerd/go-cni** v1.1.10 -> v1.1.12 * **github.com/containerd/imgcrypt/v2** v2.0.0-rc.1 -> v2.0.1 * **github.com/containerd/otelttrpc** ea5083fda723 -> v0.1.0 * **github.com/containerd/platforms** v1.0.0-rc.0 -> v1.0.0-rc.1 * **github.com/containerd/ttrpc** v1.2.6 -> v1.2.7 * **github.com/containerd/typeurl/v2** v2.2.2 -> v2.2.3 * **github.com/containernetworking/cni** v1.2.3 -> v1.3.0 * **github.com/containernetworking/plugins** v1.5.1 -> v1.7.1 * **github.com/containers/ocicrypt** v1.2.0 -> v1.2.1 * **github.com/davecgh/go-spew** d8f796af33cc -> v1.1.1 * **github.com/fsnotify/fsnotify** v1.7.0 -> v1.9.0 * **github.com/go-jose/go-jose/v4** v4.0.4 -> v4.0.5 * **github.com/google/go-cmp** v0.6.0 -> v0.7.0 * **github.com/grpc-ecosystem/grpc-gateway/v2** v2.22.0 -> v2.26.1 * **github.com/klauspost/compress** v1.17.11 -> v1.18.0 * **github.com/mdlayher/socket** v0.4.1 -> v0.5.1 * **github.com/moby/spdystream** v0.4.0 -> v0.5.0 * **github.com/moby/sys/user** v0.3.0 -> v0.4.0 * **github.com/opencontainers/image-spec** v1.1.0 -> v1.1.1 * **github.com/opencontainers/runtime-spec** v1.2.0 -> v1.2.1 * **github.com/opencontainers/selinux** v1.11.1 -> v1.12.0 * **github.com/pelletier/go-toml/v2** v2.2.3 -> v2.2.4 * **github.com/petermattis/goid** 4fcff4a6cae7 **_new_** * **github.com/pmezard/go-difflib** 5d4384ee4fb2 -> v1.0.0 * **github.com/prometheus/client_golang** v1.20.5 -> v1.22.0 * **github.com/prometheus/common** v0.55.0 -> v0.62.0 * **github.com/sasha-s/go-deadlock** v0.3.5 **_new_** * **github.com/smallstep/pkcs7** v0.1.1 **_new_** * **github.com/stretchr/testify** v1.9.0 -> v1.10.0 * **github.com/tchap/go-patricia/v2** v2.3.1 -> v2.3.2 * **github.com/urfave/cli/v2** v2.27.5 -> v2.27.6 * **github.com/vishvananda/netlink** v1.3.0 -> 0e7078ed04c8 * **github.com/vishvananda/netns** v0.0.4 -> v0.0.5 * **go.etcd.io/bbolt** v1.3.11 -> v1.4.0 * **go.opentelemetry.io/auto/sdk** v1.1.0 **_new_** * **go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc** v0.56.0 -> v0.60.0 * **go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp** v0.56.0 -> v0.60.0 * **go.opentelemetry.io/otel** v1.31.0 -> v1.35.0 * **go.opentelemetry.io/otel/exporters/otlp/otlptrace** v1.31.0 -> v1.35.0 * **go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc** v1.31.0 -> v1.35.0 * **go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp** v1.31.0 -> v1.35.0 * **go.opentelemetry.io/otel/metric** v1.31.0 -> v1.35.0 * **go.opentelemetry.io/otel/sdk** v1.31.0 -> v1.35.0 * **go.opentelemetry.io/otel/trace** v1.31.0 -> v1.35.0 * **go.opentelemetry.io/proto/otlp** v1.3.1 -> v1.5.0 * **golang.org/x/crypto** v0.28.0 -> v0.36.0 * **golang.org/x/exp** aacd6d4b4611 -> 2d47ceb2692f * **golang.org/x/mod** v0.21.0 -> v0.24.0 * **golang.org/x/net** v0.30.0 -> v0.38.0 * **golang.org/x/oauth2** v0.22.0 -> v0.27.0 * **golang.org/x/sync** v0.8.0 -> v0.14.0 * **golang.org/x/sys** v0.26.0 -> v0.33.0 * **golang.org/x/term** v0.25.0 -> v0.30.0 * **golang.org/x/text** v0.19.0 -> v0.23.0 * **golang.org/x/time** v0.3.0 -> v0.7.0 * **google.golang.org/genproto/googleapis/api** 5fefd90f89a9 -> 56aae31c358a * **google.golang.org/genproto/googleapis/rpc** 324edc3d5d38 -> 56aae31c358a * **google.golang.org/grpc** v1.67.1 -> v1.72.0 * **google.golang.org/protobuf** v1.35.1 -> v1.36.6 * **k8s.io/api** v0.31.2 -> v0.32.3 * **k8s.io/apimachinery** v0.31.2 -> v0.32.3 * **k8s.io/apiserver** v0.31.2 -> v0.32.3 * **k8s.io/client-go** v0.31.2 -> v0.32.3 * **k8s.io/cri-api** v0.31.2 -> v0.32.3 * **k8s.io/kubelet** v0.31.2 -> v0.32.3 * **k8s.io/utils** 18e509b52bc8 -> 3ea5e8cea738 * **sigs.k8s.io/json** bc3834ca7abd -> 9aa6b5e7a4b3 * **sigs.k8s.io/structured-merge-diff/v4** v4.4.1 -> v4.4.2 * **tags.cncf.io/container-device-interface** v0.8.0 -> v1.0.1 * **tags.cncf.io/container-device-interface/specs-go** v0.8.0 -> v1.0.0 Previous release can be found at [v2.0.0](https://github.com/containerd/containerd/releases/tag/v2.0.0) ### Which file should I download? * `containerd-<VERSION>-<OS>-<ARCH>.tar.gz`: ✅Recommended. Dynamically linked with glibc 2.35 (Ubuntu 22.04). * `containerd-static-<VERSION>-<OS>-<ARCH>.tar.gz`: Statically linked. Expected to be used on Linux distributions that do not use glibc >= 2.35. Not position-independent. In addition to containerd, typically you will have to install [runc](https://github.com/opencontainers/runc/releases) and [CNI plugins](https://github.com/containernetworking/plugins/releases) from their official sites too. See also the [Getting Started](https://github.com/containerd/containerd/blob/main/docs/getting-started.md) documentation.