Prefect

See these [docs](https://docs.prefect.io/latest/guides/cli-shell) to learn how to:
- run a shell command as a Prefect flow on-demand with `watch`
- schedule a shell command as a recurring Prefect flow using `serve`

See the PR for implementation details: https://github.com/PrefectHQ/prefect/pull/11998

Other Enhancements 🌟
- Integrate composite triggers with the `DeploymentTrigger` YAML representation — https://github.com/PrefectHQ/prefect/pull/12413
- Add JSON Artifacts — https://github.com/PrefectHQ/prefect/pull/12295
- Add auto-provisioning option for Cloud Run V2 push work pools — https://github.com/PrefectHQ/prefect/pull/12422

... and numerous 🐛 fixes!

**Full Changelog:** https://github.com/PrefectHQ/prefect/compare/2.16.6...2.16.7

See [the release notes](https://github.com/PrefectHQ/prefect/blob/main/RELEASE-NOTES.md#release-2167) for more!

Experimental
Engine
- Wire up new engine to deployment runs — https://github.com/PrefectHQ/prefect/pull/12914

Fixes
- Fix parameters becoming unresponsive and disappearing in Prefect UI — https://github.com/PrefectHQ/prefect-ui-library/pull/2355

**All changes**: https://github.com/PrefectHQ/prefect/compare/2.18.2...2.18.3

💡 Providing a deployment name to `flow.serve` is now optional

When running `flow.serve`, you can now omit the deployment name. If you do not provide a deployment name, the deployment name will default to the name of the flow. This change makes it easier to run flows without needing to specify a deployment name each time:

python
flow
def etl_flow():
pass

if __name__ == "__main__":
etl_flow.serve()

results in:
bash
Your flow 'etl-flow' is being served and polling for scheduled runs!

To trigger a run for this flow, use the following command:

$ prefect deployment run 'etl-flow/etl-flow'


🛠✨ We've also released a few important fixes to our deployment parameter form when creating a run in the Prefect UI! 🧑‍🎨

🚀 This release also includes a number of other fixes and in-flight feature work. See the [release notes](https://github.com/PrefectHQ/prefect/blob/main/RELEASE-NOTES.md#release-2182) for more details!

Fixes
- Fix improper context access for nested async task outside of flow — https://github.com/PrefectHQ/prefect/pull/12810
- Fix using default interval schedule in `prefect deploy` — https://github.com/PrefectHQ/prefect/pull/12833
- Handle case in `validationUpdate` schema where definitions are falsy — https://github.com/PrefectHQ/prefect/pull/12880
- Allow `prefect cloud login` to override current workspace — https://github.com/PrefectHQ/prefect/pull/12867
- Remove extra quotes in `prefect deployment run --watch` — https://github.com/PrefectHQ/prefect/pull/12894

Experimental

Events and Automations
- Support filtering by automation name:
- https://github.com/PrefectHQ/prefect/pull/12850
- https://github.com/PrefectHQ/prefect/pull/12884
- https://github.com/PrefectHQ/prefect/pull/12887
- Add support for using the "normal" Trigger classes for `flow.serve` and `.deploy` — https://github.com/PrefectHQ/prefect/pull/12789
- Add an account-level event subscriber — https://github.com/PrefectHQ/prefect/pull/12808
- Emit flow run state change events — https://github.com/PrefectHQ/prefect/pull/12825
- Emit deployment status persistence and events — https://github.com/PrefectHQ/prefect/pull/12853
- Enable event streaming from `PrefectCloudEventSubscriber` via CLI — https://github.com/PrefectHQ/prefect/pull/12796
- Update the `prefect automation delete` CLI — https://github.com/PrefectHQ/prefect/pull/12876

Engine
- Add new experimental engine for tasks and flows with improved readability and extensibility — https://github.com/PrefectHQ/prefect/pull/12856

Documentation
- Improve installation instructions — https://github.com/PrefectHQ/prefect/pull/12783
- Improve quickstart — https://github.com/PrefectHQ/prefect/pull/12798
- Migrate `prefect-azure` docs to Integrations section of the Prefect docs — https://github.com/PrefectHQ/prefect/pull/12794
- Update storage guide credentials blocks — https://github.com/PrefectHQ/prefect/pull/12819
- Remove `server` import recommendations — https://github.com/PrefectHQ/prefect/pull/12823
- Remove link to removed API page — https://github.com/PrefectHQ/prefect/pull/12824
- Add Azure Container Instances worker guide — https://github.com/PrefectHQ/prefect/pull/12846
- Improve wording on integrations index page — https://github.com/PrefectHQ/prefect/pull/12852

Prefect UI Library
- Add `FormattedDate` component to display accessible, long-form timestamps consistently
- Update modal buttons and add auto-close to the parameters and job variable modals — https://github.com/PrefectHQ/prefect-ui-library/pull/2320
- Add flow run list information density — https://github.com/PrefectHQ/prefect-ui-library/pull/2321
- Fix "Run a deployment" action not populating the default parameters from the deployment — https://github.com/PrefectHQ/prefect-ui-library/pull/2322
- Fix schema form properties with no default value from defaulting to `null` (`None`) — https://github.com/PrefectHQ/prefect-ui-library/pull/2323
- Update date-fns and date-fns-tz — https://github.com/PrefectHQ/prefect-ui-library/pull/2319
- Use correct icon colors for non-destructive actions in the UI — https://github.com/PrefectHQ/prefect-ui-library/pull/2328

Integrations
Prefect CGP
- Remove API ref to nonexistent Google Cloud Run V2 page — https://github.com/PrefectHQ/prefect-gcp/pull/260
- Fix VPC access for Cloud v2 worker — https://github.com/PrefectHQ/prefect-gcp/pull/266
- Handle case where `vpc` isn't in job template — https://github.com/PrefectHQ/prefect-gcp/pull/267

New Contributors
* keizobabybear made their first contribution in https://github.com/PrefectHQ/prefect/pull/12852