Release 0.21.2

# History

## 0.21.2

Install/update via the bootstrap script:

```shell
wget https://raw.githubusercontent.com/dokku/dokku/v0.21.2/bootstrap.sh
sudo DOKKU_TAG=v0.21.2 bash bootstrap.sh
```

### Bug Fixes

- #4072: @Schlepptop Fix deprecation warning in config_all

### New Features

- #4061: @josegonzalez Drop go sum and mod files from releases

### Refactors

- #4064: @hugopeixoto Use *_PATH consistently

### Documentation

- #4069: @josegonzalez Scheduler plugins are no longer beta
- #4068: @josegonzalez Official plugins are no longer in beta
- #4066: @ltalirz Add ansible as installation route
- #4063: @josegonzalez Clarify why we stop/rebuild apps during upgrade
- #4040: @fonsp Added link to the buildpack plugin docs
- #4062: @hugopeixoto Rewrite upgrade instructions

README.md

@@ -99,8 +99,8 @@ Otherwise, you will need to import the keypair manually after installation using
 To install the latest stable release, run the following commands as a user who has access to `sudo`:
 
 ```shell
-wget https://raw.githubusercontent.com/dokku/dokku/v0.21.1/bootstrap.sh
-sudo DOKKU_TAG=v0.21.1 bash bootstrap.sh
+wget https://raw.githubusercontent.com/dokku/dokku/v0.21.2/bootstrap.sh
+sudo DOKKU_TAG=v0.21.2 bash bootstrap.sh
 ```
 
 You can then proceed to the ip address or domain name associated with your server to complete the web-based installation.