0.3.0

A big thank you to all contributors for your work to improve container!

Beginning with the 0.3.0 release, we're aiming to release on a monthly cycle. For now, each monthly release will increment the minor version. Should we need to create an off cycle patch release, we'll bump the patch version.

## Highlights

* Core
  * [Enumerate a well known path where user-installed plugins can be found](https://github.com/apple/container/issues/340)
  * [Fix output of plugin details in CLI help](https://github.com/apple/container/issues/349)
  * [Fix handling of process options in `container create`](https://github.com/apple/container/issues/395)
  * [Enable nested virtualization in containers](https://github.com/apple/container/issues/376)
  * Several fixes for thread safety
* Network
  *  [Publish TCP and UDP ports on localhost](https://github.com/apple/container/issues/97)
* Builder
  * [Fixed build hangs/crashes](https://github.com/apple/container/issues/284)
  * [Use previous build stage names as image in subsequent `FROM` statements](https://github.com/apple/container/issues/334)
  * [Fix output for builds with `--output type=tar`](https://github.com/apple/container/issues/347)
  * [Support building with `--output local`](https://github.com/apple/container/issues/354)
  * [Improved options for specifying build platforms](https://github.com/apple/container/issues/372)

## What's Changed

* Use a consistent capitalization in a bug report template by @dkovba in https://github.com/apple/container/pull/269
* Adds next step link for building the project. by @jglogan in https://github.com/apple/container/pull/278
* Docs for shell completion by @adityaramani in https://github.com/apple/container/pull/275
* Add unpack strategy to SnapshotStore by @adityaramani in https://github.com/apple/container/pull/274
* Use enum for ClientHealthCheck namespace by @eliseomartelli in https://github.com/apple/container/pull/225
* Assigns default nameserver in sandbox service. by @jglogan in https://github.com/apple/container/pull/276
* [Build] Disable rosetta during builds with a UserDefault by @wlan0 in https://github.com/apple/container/pull/273
* Cleanups for CI by @adityaramani in https://github.com/apple/container/pull/287
* [Build] update builder shim to 0.3.0 by @wlan0 in https://github.com/apple/container/pull/288
* Fix build with local images test by @katiewasnothere in https://github.com/apple/container/pull/285
* Updates SPI manifest to build on 6.2 only. by @jglogan in https://github.com/apple/container/pull/297
* Mark SandboxSnapshot init as public for sandbox plugins by @ArnavReddy in https://github.com/apple/container/pull/309
* Flush output when following logs. by @jglogan in https://github.com/apple/container/pull/316
* ProcessIO: Don't error if stdin isn't a pty and !-i by @dcantah in https://github.com/apple/container/pull/312
* Use `swift package edit` instead of `CONTAINERIZATION_PATH`. by @jglogan in https://github.com/apple/container/pull/318
* fix typo in local package path for building by @Typ0genius in https://github.com/apple/container/pull/327
* Handle when keychain query returns an unhandled error by @katiewasnothere in https://github.com/apple/container/pull/331
* Use `Mutex` for thread-safe access to structs by @dkovba in https://github.com/apple/container/pull/325
* Use the new `@SendablePropertyUnchecked` macro by @dkovba in https://github.com/apple/container/pull/332
* Docs: Add macOS 15 container-to-container communication limitation note to the tutorial by @zdk in https://github.com/apple/container/pull/328
* Use `{install-root}/libexec/container-plugins` for plugins. by @jglogan in https://github.com/apple/container/pull/341
* Add test for using previous stages as FROM source by @katiewasnothere in https://github.com/apple/container/pull/342
* Make image details public by @Typ0genius in https://github.com/apple/container/pull/335
* Quote paths in Makefile by @realrajaryan in https://github.com/apple/container/pull/350
* Fix subcommand groups in top level help. by @jglogan in https://github.com/apple/container/pull/351
* Adds TCP and UDP port forwarders. by @jglogan in https://github.com/apple/container/pull/338
* [Build] fixes for tar output mode by @wlan0 in https://github.com/apple/container/pull/353
* Fix broken link to tutorial.md by @sbehnke in https://github.com/apple/container/pull/358
* Use wildcard IP for UDP backend local address. by @jglogan in https://github.com/apple/container/pull/359
* Add cause string to error message sent with xpc by @katiewasnothere in https://github.com/apple/container/pull/361
* CLI: Handle stdin stream if it's a regular file by @dcantah in https://github.com/apple/container/pull/322
* Adds `--publish` flag for forwarding traffic to container ports. by @jglogan in https://github.com/apple/container/pull/352
* Applies feedback for PR #352. by @jglogan in https://github.com/apple/container/pull/365
* add support for local build output by @wlan0 in https://github.com/apple/container/pull/369
* Update xcode developer version to new symlink by @katiewasnothere in https://github.com/apple/container/pull/374
* Clarified documentation by @sam-lord in https://github.com/apple/container/pull/388
* Bump Containerization to 0.5.0 by @dcantah in https://github.com/apple/container/pull/363
* Fix user arg passthrough for container create by @katiewasnothere in https://github.com/apple/container/pull/393
* Explain how to install a release build in BUILDING.md by @justinyaodu in https://github.com/apple/container/pull/379
* Add virtualization support for containers by @dcantah in https://github.com/apple/container/pull/377

## New Contributors
* @Typ0genius made their first contribution in https://github.com/apple/container/pull/327
* @zdk made their first contribution in https://github.com/apple/container/pull/328
* @realrajaryan made their first contribution in https://github.com/apple/container/pull/350
* @sbehnke made their first contribution in https://github.com/apple/container/pull/358
* @sam-lord made their first contribution in https://github.com/apple/container/pull/388
* @justinyaodu made their first contribution in https://github.com/apple/container/pull/379

**Full Changelog**: https://github.com/apple/container/compare/0.2.0...0.3.0