updated to version 6.0.6
see installed CHANGELOG.md
## 6.0.6

* Prevent CRuby from accidentally using the Ruby implementation fallback
* Reversing what v6.0.3 and v6.0.4 did, but still supporting Wasm.

## 6.0.5

* Resurrect `#haml_object_ref` support in an object reference [#1097](https://github.com/haml/haml/issues/1097)
* This was removed in 6.0.0, and added back in this version.
* Stop warning `remove_whitespace: true` option.

## 6.0.4

Released on October 2, 2022
([diff](https://github.com/haml/haml/compare/v6.0.3...v6.0.4)).

* Fix a parse failure of `%` in attributes [#1096](https://github.com/haml/haml/issues/1096)
* Add another fallback from C to Ruby for Wasm.

## 6.0.3

Released on September 28, 2022
([diff](https://github.com/haml/haml/compare/v6.0.2...v6.0.3)).

* For Wasm, fallback to Ruby when C extension is not available.

## 6.0.2

Released on September 28, 2022
([diff](https://github.com/haml/haml/compare/v6.0.1...v6.0.2)).

* Unescape HTML-safe arguments for `surround`, `succeed`, and `precede` on Rails
[#1088](https://github.com/haml/haml/issues/1088)

## 6.0.1

Released on September 23, 2022
([diff](https://github.com/haml/haml/compare/v6.0.0...v6.0.1)).

* Unescape HTML-safe interpolation on Rails [#1084](https://github.com/haml/haml/issues/1084)
* Resurrect Haml 5's `AttributeParser.available?` for syntax\_tree-haml [#1085](https://github.com/haml/haml/issues/1085)

## 6.0.0

Released on September 21, 2022
([diff](https://github.com/haml/haml/compare/v5.2.2...v6.0.0)).

* Replace the implementation with Hamlit
* Haml 6 is about 1.7x faster than Haml 5 in [this benchmark](benchmark/slim/run-benchmarks.rb).
* The parser is kept as is, but everything else is replaced.
* The `haml` CLI interface was also replaced.
* The interface of `Haml::Engine` is changed. `Haml::Template` is most likely what you need now.
* Most Haml helpers are removed.
* Rails:
* Kept: `find_and_reserve`, `preserve`, `surround`, `precede`, `succeed`, `capture_haml`
* Removed: `block_is_haml?`, `flatten`, `haml_concat`, `haml_indent`, `haml_tag`, `haml_tag_if`, `html_attrs`,
`html_escape`, `init_haml_helpers`, `is_haml?`, `list_of`, `non_haml`, `tab_down`, `tab_up`, `with_tabs`
* Tilt:
* Kept: `preserve`
* Removed: `block_is_haml?`, `capture_haml`, `escape_once`, `find_and_preserve`, `flatten`, `haml_concat`,
`haml_indent`, `haml_tag`, `haml_tag_if`, `html_attrs`, `html_escape`, `init_haml_helpers`, `is_haml?`,
`list_of`, `non_haml`, `precede`, `succeed`, `surround`, `tab_down`, `tab_up`, `with_tabs`
* Only the attributes in [`Haml::AttributeBuilder::BOOLEAN_ATTRIBUTES`](lib/haml/attribute_builder.rb)
are handled as boolean attributes.
* Some legacy Rails integration is removed.