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containerd 1.1.1

Welcome to the v1.1.1 release of containerd!

This is the first patch release for the `containerd` 1.1 release. This
includes bug fixes related to runtime, CRI, image pull, and native snapshotter.

Runtime
Fix race condition in TTY console

CRI Plugin
Fixes for working set memory calculation, privileged container creation and
image volume directory ownership.
Fix a bug that container running as non-root will get capabilities added by
user. This is fixed to keep the behavior consistent with Docker.
Fix double mount of /dev/shm.
Fix startup panic when overlayfs fails to load, now cri plugin will just fail.

Image Pull
Fix for a size validation bug with some registries which impacts the
CRI plugin and clients.

Native Snapshotter
Fix for bug in layers containing large files.

Please see the changelog for full details.

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

Contributors

* Akihiro Suda
* Brian Goff
* Derek McGowan
* Lantao Liu
* Michael Crosby
* Mike Brown
* Phil Estes
* Rolf Neugebauer
* Sebastiaan van Stijn

Changes

* d64c661f1d Merge pull request #2445 from dmcgowan/prepare-1.1.1
* 647712af24 Merge pull request #2449 from mlaventure/btrfs-loopback-size
* 190f8befb3 test: Increase btrfs loopback device size to 128MB
* 58aa30d45b Merge pull request #2446 from dmcgowan/backport-1.1-proc-masks
* 27c2c262e2 Add /proc/keys to masked paths
* 984254a264 Add /proc/acpi to masked paths
* e88dc394bd Prepare 1.1.1 release notes
* 502bc169a5 Merge pull request #2444 from cpuguy83/1.1_bump_console_pkg
* 9017672af4 Bump console package
* 3b12eb2929 Merge pull request #2429 from estesp/cio-load-ctr-del
* 18a086052d Add cio.Load for loading io set
* e5fb877b9f Merge pull request #2413 from dmcgowan/prepare-1.1.1-rc.2
* 33ddacbbc0 Prepare 1.1.1-rc.2
* d984b8cd4a Update cri on release/1.0 branch
* 5d87c67c15 Merge pull request #2416 from dmcgowan/backport-arm-fix
* 92f5f97926 Normalize arm64 to an empty variant
* f2709edd1a Fix arm platform matching
* cbef57047e Merge pull request #2403 from dmcgowan/prepare-1.1.1-rc.1
* c968b15699 Prepare 1.1.1-rc.1
* 688c1070ae Merge pull request #2395 from Random-Liu/update-cri-v1.0.3
* e4c45c491e Update cri to v1.0.3.
* 395068d2b7 Merge pull request #2377 from dmcgowan/release-1.1-set-rc.0
* 674c7efe61 Set rc.0 on version
* f31ff2ec76 Merge pull request #2374 from dmcgowan/prepare-1.1.1-rc.0
* dcda690394 Prepare 1.1.1-rc.0 release
* 58459814fa Merge pull request #2376 from Random-Liu/update-cri-1.1
* d05461d91c Update cri plugin to v1.0.2.
* 2326b62470 Merge pull request #2367 from dmcgowan/1.1-fix-size-validation-error
* 60448fe8b9 Fix invalid length bug with some registries
* 2e55c8570a Merge pull request #2356 from cpuguy83/1.1_bump_continuity
* 7f5ed29069 Bump continuity to fix copy files > 2^32 bytes
* f7da2352ed Merge pull request #2349 from Random-Liu/update-cri
* c0d46d34d7 Update cri plugin to v1.0.1.
* 01a0741488 Merge pull request #2334 from dmcgowan/fix-missing-return-1.1
* 6d81933a35 Add missing return statement on pull unpack
* fb8f17f8e5 Fix vendor update for 1.1
* b99cd4ace1 Merge pull request #2311 from crosbymichael/events
* 7c2f0f4026 Correctly handle reading from events channel

Dependency Changes

Previous release can be found at [v1.1.0](https://github.com/containerd/containerd/releases/tag/v1.1.0)

* **github.com/containerd/console**     cb7008ab3d8359b78c5f464cb7cf160107ad5925 -> 4d8a41f4ce5b9bae77c41786ea2458330f43f081
* **github.com/containerd/continuity**  3e8f2ea4b190484acb976a5b378d373429639a1a -> a60600ad77f38aaa70165825f61e2ea72e51c9b1
* **github.com/containerd/cri**         v1.0.0 -> 40007b34d36f81007087578a340c499e4b06c9bb