### Enhancements

- Extends Cecil with [output post processors](/documentation/extend/#output-post-processor)
- Customized *Generator*, *Postprocessor* and *Extension* class available for themes too
- Better configuration options hierarchy
- Access to *raw* site configuration from a template with [`config.xxx`](/documentation/templates/#site)
- Configuration validation enhanced
- Logs enhanced
- Asset find file enhanced

### Breaking changes

- Dropping support for PHP 7.x
- No more legacy support of the `content` directory: use `pages` instead

#### Configuration options

```yaml
frontmatter:
body:
defaultpages:
virtualpages:
generators:
translations:
extensions:
postprocess:
```

have been changed for:

```yaml
pages:
  frontmatter:
  body:
  default:
  virtual:
  generators:
layouts:
  translations:
  extensions:
optimize:
```

#### Commands

- The [`build`](/documentation/commands/#build) and [`serve`](/documentation/commands/#serve) command option `--postprocess` have been changed for `--optimize`

#### Templates

- `pagination.html.twig` removed (use `paginator.html.twig` instead)
- `googleanalytics.js.twig` removed
- All deprecated functions and filters have been removed

### Fix

- Fix render default timezone
- Fix `localizeddate` fallback filter
- Fix `asset()` bundle
- Fix HTML asset filter with WebP
- Fix remote asset fallback

### Performance

- Collection item access time enhanced
- *post processors* class autoloader moved
- `jsonld.js.twig` performances fixed

### Docs

- [Documentation](/documentation/) updated

### Miscs

- Dependencies updated

### Tests

- Test fixtures enhanced