Merge pull request #209 from containerd/dep-updates

Automated RELEASES.md sync update

Author: estesp

content/releases.md

@@ -398,18 +398,20 @@ against total impact.
 
 The deprecated features are shown in the following table:
 
-| Component                                                                        | Deprecation release | Target release for removal | Recommendation                           |
-|----------------------------------------------------------------------------------|---------------------|----------------------------|------------------------------------------|
-| Runtime V1 API and implementation (`io.containerd.runtime.v1.linux`)             | containerd v1.4     | containerd v2.0 ✅         | Use `io.containerd.runc.v2`              |
-| Runc V1 implementation of Runtime V2 (`io.containerd.runc.v1`)                   | containerd v1.4     | containerd v2.0 ✅         | Use `io.containerd.runc.v2`              |
-| Built-in `aufs` snapshotter                                                      | containerd v1.5     | containerd v2.0 ✅         | Use `overlayfs` snapshotter              |
-| Container label `containerd.io/restart.logpath`                                  | containerd v1.5     | containerd v2.0 ✅         | Use `containerd.io/restart.loguri` label |
-| `cri-containerd-*.tar.gz` release bundles                                        | containerd v1.6     | containerd v2.0 ✅         | Use `containerd-*.tar.gz` bundles        |
-| Pulling Schema 1 images (`application/vnd.docker.distribution.manifest.v1+json`) | containerd v1.7     | containerd v2.0            | Use Schema 2 or OCI images               |
-| CRI `v1alpha2`                                                                   | containerd v1.7     | containerd v2.0 ✅         | Use CRI `v1`                             |
-| Legacy CRI implementation of podsandbox support                                  | containerd v2.0     | containerd v2.0 ✅         |                                          |
-| Go-Plugin library (`*.so`) as containerd runtime plugin                          | containerd v2.0     | containerd v2.1            | Use external plugins (proxy or binary)   |
-
+| Component                                                                        | Deprecation release | Target release for removal            | Recommendation                           |
+|----------------------------------------------------------------------------------|---------------------|---------------------------------------|------------------------------------------|
+| Runtime V1 API and implementation (`io.containerd.runtime.v1.linux`)             | containerd v1.4     | containerd v2.0 ✅                    | Use `io.containerd.runc.v2`              |
+| Runc V1 implementation of Runtime V2 (`io.containerd.runc.v1`)                   | containerd v1.4     | containerd v2.0 ✅                    | Use `io.containerd.runc.v2`              |
+| Built-in `aufs` snapshotter                                                      | containerd v1.5     | containerd v2.0 ✅                    | Use `overlayfs` snapshotter              |
+| Container label `containerd.io/restart.logpath`                                  | containerd v1.5     | containerd v2.0 ✅                    | Use `containerd.io/restart.loguri` label |
+| `cri-containerd-*.tar.gz` release bundles                                        | containerd v1.6     | containerd v2.0 ✅                    | Use `containerd-*.tar.gz` bundles        |
+| Pulling Schema 1 images (`application/vnd.docker.distribution.manifest.v1+json`) | containerd v1.7     | containerd v2.1 (Disabled in v2.0 ✅) | Use Schema 2 or OCI images               |
+| CRI `v1alpha2`                                                                   | containerd v1.7     | containerd v2.0 ✅                    | Use CRI `v1`                             |
+| Legacy CRI implementation of podsandbox support                                  | containerd v2.0     | containerd v2.0 ✅                    |                                          |
+| Go-Plugin library (`*.so`) as containerd runtime plugin                          | containerd v2.0     | containerd v2.1                       | Use external plugins (proxy or binary)   |
+
+- Pulling Schema 1 images has been disabled in containerd v2.0, but it still can be enabled by setting an environment variable `CONTAINERD_ENABLE_DEPRECATED_PULL_SCHEMA_1_IMAGE=1`
+  until containerd v2.1. `ctr` users have to specify `--local` too (e.g., `ctr images pull --local`).
 
 ### Deprecated config properties
 The deprecated properties in [`config.toml`](./docs/cri/config.md) are shown in the following table: