Docker Desktop Community 2.2.3.0 and Edge Release Notes: Enhancements and Bug Fixes

- Added a link to the Stable channel from the Docker Desktop UI. - IPv6 has been re-enabled in the embedded Linux kernel, so listening on IPv6 addresses works again. Fixed [docker/for-win#6206](https://github.com/docker/for-win/issues/6206) and [docker/for-mac#4415](https://github.com/docker/for-mac/issues/4415). - Made the embedded terminal resizable. - Fixed a bug which only respected the "expose on TCP" Docker engine API setting on application restart. Setting will now take effect when the Apply button is clicked. - Fixed a bug where diagnostic upload would fail if the username contained spaces. ## Docker Desktop Community 2.2.3.0 2020-04-02 ### Upgrades - [Docker 19.03.8](https://github.com/docker/docker-ce/releases/tag/v19.03.8) - [Docker Compose 1.26.0-rc3](https://github.com/docker/compose/releases/tag/1.26.0-rc3) - [Linux 4.19.76](https://hub.docker.com/layers/docker/for-desktop-kernel/4.19.76-4e5d9e5f3bde0abf236f97e4a81b029ae0f5f6e7-amd64/images/sha256-11dc0f6ee3187088219ba1463ebb378f5093a7d98f176ddfd62dd6b741c2dd2d?context=repo) ### New - Docker Desktop introduces a new onboarding tutorial upon first startup. The Quick Start tutorial guides users to get started with Docker in a few easy steps. It includes a simple exercise to build an example Docker image, run it as a container, push and save the image to Docker Hub. ### Bug fixes and minor changes > Docker Desktop Edge 2.2.3.0 fixes 28 issues reported on the [docker/for-win](https://github.com/docker/for-win/issues) GitHub repository. **WSL 2** - Docker Desktop only exposes host ports in Linux if the Windows port is available. - Docker Desktop now allows users to refresh the list of Linux distributions. - Docker Desktop defaults to WSL 2 on install on compatible OS versions. - Docker Desktop detects missing Linux kernel and adds a pointer to the Microsoft documentation to download the kernel. **File sharing** - Kubernetes: Persistent volumes created by claims are now stored in the virtual machine. Fixes [for-win/issues/5665](https://github.com/docker/for-win/issues/5665). - Docker Desktop ensures that host paths accessed by containers are within the shared folders list. - Fixed a bug where opening a read-only file would fail with an `Operation not permitted error`. Fixes [docker/for-win#6016](https://github.com/docker/for-win/issues/6016) and [docker/for-win#6017](https://github.com/docker/for-win/issues/6017). - Fixed path handling for `docker volume create -o type=none -o o=bind -o device=C:\Some\Windows\path`. - Fixed a bug which prevented open files from being deleted. Fixes [docker/for-win#5565](https://github.com/docker/for-win/issues/5565). - Docker Desktop now avoids locking files on the host which are open in containers. - Docker Desktop generates `fsnotify.WRITE` events in Linux containers when files are changed on the host. [docker/for-win#5530](https://github.com/docker/for-win/issues/5530#issuecomment-585572414) - Docker Desktop now displays hidden files on shared volumes. Fixes [docker/for-win#5808](https://github.com/docker/for-win/issues/5808). - Fixed cache invalidation and event injection for shared volumes with long paths. - Docker Desktop now handles case-insensitivity correctly during file creation. - Docker Desktop represents valid directory junctions as directories (rather than symlinks) and handles cache invalidation and event injection properly. Fixes [docker/for-win#5582](https://github.com/docker/for-win/issues/5582). - Fixed a race condition in `readlink` on shared volumes using "mfsymlinks". Fixes [docker/for-win#5793](https://github.com/docker/for-win/issues/5793) - Fixed a bug where files did not change in shared volumes when using `volumes_from` in docker-compose.yml. Fixes [docker/for-win#5530](https://github.com/docker/for-win/issues/5530). **Other fixes** - Reduced the size of the Docker Desktop installer from 960 MB to 400 MB. - Added an option to delete container and image data from the **Troubleshoot** screen. - Docker Desktop now reads the Hyper-V VM disk max size on startup and uses it as the value to display in the Settings.

This document summarizes the release notes for Docker Desktop Community version 2.2.3.0 and Edge. Community 2.2.3.0 includes upgrades to Docker, Docker Compose, and the Linux kernel, along with a new onboarding tutorial. Edge fixes 28 reported issues, focusing on WSL 2 improvements (port exposure, distribution refreshing, default WSL 2 setting, kernel detection) and file sharing enhancements (Kubernetes persistent volumes, path access validation, read-only file handling, path handling, file deletion, file locking, file change events, hidden file display, cache invalidation, case-insensitivity, directory junctions, `readlink` race condition, and `volumes_from` issue). Other fixes include installer size reduction, a data deletion option on the Troubleshoot screen, and Hyper-V VM disk size reading.