- Use Docker [Compose 2.2.2](https://github.com/docker/compose/releases/tag/v2.2.2) instead of Docker [Compose 2.1.1](https://github.com/docker/compose/releases/tag/v2.1.1)
- Test <abbrtitle="Portainer Stack Utils">PSU</abbr> with Portainer <abbrtitle="Community Edition">CE</abbr> [2.9.3](https://app.swaggerhub.com/apis/portainer/portainer-ce/2.9.3) API
- Use Docker [Compose 2.1.1](https://github.com/docker/compose/releases/tag/v2.1.1) instead of Docker [Compose 1.x](https://github.com/docker/compose/releases/tag/1.28.0)
- Reduce Docker images size, based on Alpine and Debian, again
- Fix documentation scrolling between pages, with the [`auto2top`](https://docsify.js.org/#/configuration?id=auto2top) option of [docsify](https://docsify.js.org)
- **Breaking Change**: [HTTPie](https://httpie.io/) is replaced by [cURL](https://curl.se), for smaller Docker images, faster execution and to be more portable
- Downgrade Docker Compose from [1.29.2](https://github.com/docker/compose/releases/tag/1.29.2) to [1.28.0](https://github.com/docker/compose/releases/tag/1.28.0) for Alpine image, to get faster builds 🚀
- Reduce Docker images size based on Alpine, again
- Test <abbrtitle="Portainer Stack Utils">PSU</abbr> with Portainer <abbrtitle="Community Edition">CE</abbr> [2.5.1](https://app.swaggerhub.com/apis/portainer/portainer-ce/2.5.1) API
- Test <abbrtitle="Portainer Stack Utils">PSU</abbr> with Portainer <abbrtitle="Community Edition">CE</abbr> [2.6.3](https://app.swaggerhub.com/apis/portainer/portainer-ce/2.6.3) API
- Use Docker [Compose 1.29.2](https://github.com/docker/compose/releases/tag/1.29.2) instead of Docker [Compose 1.28.3](https://github.com/docker/compose/releases/tag/1.28.3)
- Upgrade Operating System of Docker based images, with [Alpine 3.14](https://hub.docker.com/_/alpine) and [Debian 11](https://hub.docker.com/_/debian)
- Test <abbrtitle="Portainer Stack Utils">PSU</abbr> with Portainer <abbrtitle="Community Edition">CE</abbr> [2.0.1](https://app.swaggerhub.com/apis/deviantony/Portainer/2.0.1) API
- Test <abbrtitle="Portainer Stack Utils">PSU</abbr> with Portainer <abbrtitle="Community Edition">CE</abbr> [2.1.1](https://app.swaggerhub.com/apis/deviantony/Portainer/2.0.1) API
### Changed
- Use Docker [Compose 1.28.3](https://github.com/docker/compose/releases/tag/1.28.3) instead of Docker [Compose 1.26.2](https://github.com/docker/compose/releases/tag/1.26.2)
- Upgrade Operating System of Docker based images, with [Alpine 3.12](https://hub.docker.com/_/alpine) and [Debian 10](https://hub.docker.com/_/debian)
- Cleaning old Docker repository builds tags via [GitLab API](https://docs.gitlab.com/12.6/ee/api/container_registry.html#delete-repository-tags-in-bulk)
- If the `--insecure` option is set to `false` and the `HTTPIE_VERIFY_SSL` environment variable is set, we keep its value instead of overwrite it to `yes`.
Useful when we want to use Custom <abbrtitle="Certificate Authority">CA</abbr> (e.g. `HTTPIE_VERIFY_SSL=/etc/ssl/certs/ca-certificates.crt`). For more information, you can read the [HTTPie docs](https://httpie.org/doc/1.0.3#custom-ca-bundle)
- New actions: `ls`, `status`, `services`, `tasks`, `tasks:healthy`, `containers`, `login`, `lint`, `inspect`, `system:info`, `actions`, `help` and `version`
- New options: `--auth-token=[AUTH_TOKEN]`, `--compose-file-base64=[BASE64]`, `--env-file-base64=[BASE64]`, `--timeout=[SECONDS]`, `--detect-job=[true|false]`, `--service=[SERVICE_NAME]`, `--insecure`, `--masked-variables`, `--quiet`, `--lint`, `--help` and `--version`
- New flags: `-A`, `-C`, `-F`, `-G`, `-T`, `-j`, `-i`, `-S`, `-m`, `-q`, `-L`, `-h` and `-V`
- New environment variables: `PORTAINER_AUTH_TOKEN`, `TIMEOUT`, `AUTO_DETECT_JOB`, `PORTAINER_SERVICE_NAME`, `MASKED_VARIABLES`, `QUIET_MODE` and `DOCKER_COMPOSE_LINT`
- The Docker image include now `docker-compose` to be able to lint Docker compose/stack file
- The `core` Docker image variant doesn't include `docker-compose`, so it's a bit smaller. But you can't lint Docker compose/stack file before deploying a stack
- The `debian` and `debian-core` Docker image variants, use [Debian](https://www.debian.org) instead of [Alpine](https://alpinelinux.org/) as base image for `psu`
- Online documentation via [docsify](https://docsify.js.org)
- Tests who run automatically on each git push via [GitLab CI](https://docs.gitlab.com/ce/ci/)
### Changed
- The `undeploy` action is now an aliased action. You should use `rm` action instead