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We going to release v2.1 earlier than we have once expected at that time, so extend the grace period for migration.

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LGTM.

I'm curious why we deprecated all Registry.Mirrors|Configs|Auths but kept Headers

// Headers adds additional HTTP headers that get sent to all registries
Headers map[string][]string `toml:"headers" json:"headers"`

@dmcgowan dmcgowan moved this from Needs Triage to Review In Progress in Pull Request Review Apr 11, 2025
@AkihiroSuda AkihiroSuda enabled auto-merge April 17, 2025 00:13
@AkihiroSuda AkihiroSuda disabled auto-merge April 17, 2025 00:13
We going to release v2.1 earlier than we have once expected at that time,
so extend the grace period for migration.

Signed-off-by: Akihiro Suda <[email protected]>
@AkihiroSuda AkihiroSuda force-pushed the postpone-deprecation-2.1 branch from 3221921 to 764dcf7 Compare April 17, 2025 00:14
@estesp estesp added this pull request to the merge queue Apr 17, 2025
Merged via the queue into containerd:main with commit 2505935 Apr 17, 2025
101 of 102 checks passed
@github-project-automation github-project-automation bot moved this from Review In Progress to Done in Pull Request Review Apr 17, 2025
@dmcgowan dmcgowan changed the title config: postpone planned v2.1 deprecations to v2.2 Postpone cri config deprecations to v2.2 Apr 25, 2025
chrishenzie added a commit to chrishenzie/containerd that referenced this pull request May 8, 2025
Config deprecations were postponed to 2.2:
containerd#11684

Signed-off-by: Chris Henzie <[email protected]>
k8s-infra-cherrypick-robot pushed a commit to k8s-infra-cherrypick-robot/containerd that referenced this pull request May 10, 2025
Config deprecations were postponed to 2.2:
containerd#11684

Signed-off-by: Chris Henzie <[email protected]>
Cindia-blue pushed a commit to Cindia-blue/containerd that referenced this pull request Aug 31, 2025
Config deprecations were postponed to 2.2:
containerd#11684

Signed-off-by: Chris Henzie <[email protected]>
Cindia-blue pushed a commit to Cindia-blue/containerd that referenced this pull request Sep 1, 2025
Config deprecations were postponed to 2.2:
containerd#11684

Signed-off-by: Chris Henzie <[email protected]>
Cindia-blue pushed a commit to Cindia-blue/containerd that referenced this pull request Oct 20, 2025
Config deprecations were postponed to 2.2:
containerd#11684

Signed-off-by: Chris Henzie <[email protected]>
Cindia-blue pushed a commit to Cindia-blue/containerd that referenced this pull request Nov 8, 2025
Config deprecations were postponed to 2.2:
containerd#11684

Signed-off-by: Chris Henzie <[email protected]>
mansikulkarni96 added a commit to mansikulkarni96/containerd that referenced this pull request Dec 4, 2025
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.

* Add no_sync option to boost boltDB performance on ephemeral environments ([containerd#10745](containerd#10745))
* Add content create event ([containerd#11006](containerd#11006))
* Erofs snapshotter and differ ([containerd#10705](containerd#10705))

* Update CRI to use transfer service for image pull by default ([containerd#8515](containerd#8515))
* Support multiple cni plugin bin dirs ([containerd#11311](containerd#11311))
* Support container restore through CRI/Kubernetes ([containerd#10365](containerd#10365))
* Add OCI/Image Volume Source support ([containerd#10579](containerd#10579))
* Enable Writable cgroups for unprivileged containers ([containerd#11131](containerd#11131))
* Fix recursive RLock() mutex acquisition ([containerd/go-cni#126](containerd/go-cni#126))
* Support CNI STATUS Verb ([containerd/go-cni#123](containerd/go-cni#123))

* Retry last registry host on 50x responses ([containerd#11484](containerd#11484))
* Multipart layer fetch ([containerd#10177](containerd#10177))
* Enable HTTP debug and trace for transfer based puller ([containerd#10762](containerd#10762))
* Add support for unpacking custom media types  ([containerd#11744](containerd#11744))
* Add dial timeout field to hosts toml configuration ([containerd#11106](containerd#11106))

* Expose Pod assigned IPs to NRI plugins ([containerd#10921](containerd#10921))

* Support multiple uid/gid mappings ([containerd#10722](containerd#10722))
* Fix race between serve and immediate shutdown on the server ([containerd/ttrpc#175](containerd/ttrpc#175))

* Update FreeBSD defaults and re-organize platform defaults ([containerd#11017](containerd#11017))

* Postpone cri config deprecations to v2.2 ([containerd#11684](containerd#11684))
* Remove deprecated dynamic library plugins ([containerd#11683](containerd#11683))
* Remove the support for Schema 1 images ([containerd#11681](containerd#11681))

Please try out the release binaries and report any issues at
https://github.com/containerd/containerd/issues.

* 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

* **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)
* `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.
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