# 0.13.8

Released on September 22, 2020.

### Enhancements

- Allow passing context values as JSON string from CLI - [#3347](https://github.com/PrefectHQ/prefect/issues/3347)
- Allow copying of directories into Docker image - [#3299](https://github.com/PrefectHQ/prefect/pull/3299)
- Adds schedule filters for month end or month start and specific day - [#3330](https://github.com/PrefectHQ/prefect/pull/3330)
- Support configuring executor on flow, not on environment - [#3338](https://github.com/PrefectHQ/prefect/pull/3338)
- Support configuring additional docker build commands on `Docker` storage - [#3342](https://github.com/PrefectHQ/prefect/pull/3342)
- Support submission retries within the k8s agent - [#3344](https://github.com/PrefectHQ/prefect/pull/3344)
- Expose `flow_run_name` to `flow.run()` for local runs - [#3364](https://github.com/PrefectHQ/prefect/pull/3364)

### Task Library

- Add contributing documentation for task library - [#3360](https://github.com/PrefectHQ/prefect/pull/3360)
- Remove duplicate task library documentation in favor of API reference docs - [#3360](https://github.com/PrefectHQ/prefect/pull/3360)

### Fixes

- Fix issue with constants when copying Flows - [#3319](https://github.com/PrefectHQ/prefect/issues/3319)
- Fix `DockerAgent` with `--show-flow-logs` to work on windows/osx (with python >= 3.8) - [#3339](https://github.com/PrefectHQ/prefect/pull/3339)
- Fix mypy type checking for tasks created with `prefect.task` - [#3346](https://github.com/PrefectHQ/prefect/pull/3346)
- Fix bug in `flow.visualize()` where no output would be generated when running with `PYTHONOPTIMIZE=1` - [#3352](https://github.com/PrefectHQ/prefect/pull/3352)
- Fix typo in `DaskCloudProviderEnvironment` logs - [#3354](https://github.com/PrefectHQ/prefect/pull/3354)

### Deprecations

- Deprecate the use of the `/contrib` directory - [#3360](https://github.com/PrefectHQ/prefect/pull/3360)
- Deprecate importing `Databricks` and `MySQL` tasks from `prefect.contrib.tasks`, should use `prefect.tasks` instead - [#3360](https://github.com/PrefectHQ/prefect/pull/3360)

### Contributors

- [David Severin Ryberg](https://github.com/sevberg)
- [James Lamb](https://github.com/jameslamb)
- [Nejc Vesel](https://github.com/veseln)