🐛 Fixes
- [7104](https://github.com/meltano/meltano/issues/7104) Support default boto3 auth for S3 state backend when AWS creds are unconfigured
- [7174](https://github.com/meltano/meltano/issues/7174) Support default auth for GCS and Azure state backends
- [7190](https://github.com/meltano/meltano/issues/7190) Make fully missing env var settings `None`
⚙️ Under the Hood
- [7182](https://github.com/meltano/meltano/issues/7182) Use JSONschema version `draft-2020-12` for `meltano.yml` & `discovery.yml`
- [7169](https://github.com/meltano/meltano/issues/7169) Use `$defs` instead of `definitions` in jsonschemas
- [7188](https://github.com/meltano/meltano/issues/7188) Add header with Meltano command to Hub request
📚 Documentation Improvements
- [7187](https://github.com/meltano/meltano/issues/7187) Fix YAML indent on getting started page and fix link to page source in GitHub -- _**Thanks jx2lee!**_
- [6699](https://github.com/meltano/meltano/issues/6699) Update `dbt` x `airflow` example project description
- [7177](https://github.com/meltano/meltano/issues/7177) Add codespaces links to nav and ind