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Docs: Help people upgrade to 5 by classifying changes

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By identifying breaking changes in the changelog, it will be much
easier for people to upgrade to 5.

Not being a HAML expert, I may have missed some breaking changes,
but this should be a good start.

The distinction between added/fixed is much less important in a
major version bump.

[ci skip]
This commit is contained in:
Jared Beck 2017-04-27 14:30:47 -04:00
parent 3f885fd8ba
commit 5fd0936ca9
1 changed files with 19 additions and 11 deletions
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30
CHANGELOG.md
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@ -5,10 +5,29 @@
Released on April 26, 2017
([diff](https://github.com/haml/haml/compare/4.0.7...v5.0.0)).
Breaking Changes
* Haml now requires Ruby 2.0.0 or above.
* Rails 3 is no longer supported, matching the official
[Maintenance Policy for Ruby on Rails](http://weblog.rubyonrails.org/2013/2/24/maintenance-policy-for-ruby-on-rails/).
(Tee Parham)
* The `haml` command's debug option (`-d`) no longer executes the Haml code, but
rather checks the generated Ruby syntax for errors.
* Drop parser/compiler accessor from `Haml::Engine`. Modify `Haml::Engine#initialize` options
or `Haml::Template.options` instead. (Takashi Kokubun)
Added
* Add a tracing option. When enabled, Haml will output a data-trace attribute on each tag showing the path
to the source Haml file from which it was generated. Thanks [Alex Babkin](https://github.com/ababkin).
* Add `haml_tag_if` to render a block, conditionally wrapped in another element (Matt Wildig)
* Support Rails 5.1 Erubi template handler.
* Support Sprockets 3. Thanks [Sam Davies](https://github.com/samphilipd) and [Jeremy Venezia](https://github.com/jvenezia).
* Analyze attribute values by Ripper and render static attributes beforehand. (Takashi Kokubun)
* Optimize attribute rendering about 3x faster. (Takashi Kokubun)
Fixed
* Fix for attribute merging. When an attribute method (or literal nested hash)
was used in an old style attribute hash and there is also a (non-static) new
style hash there is an error. The fix can result in different behavior in
@ -17,15 +36,8 @@ Released on April 26, 2017
* Make escape_once respect hexadecimal references. (Matt Wildig)
* General performance and memory usage improvements. (Akira Matsuda)
* Don't treat the 'data' attribute specially when merging attribute hashes. (Matt Wildig and Norman Clarke)
* Add a tracing option. When enabled, Haml will output a data-trace attribute on each tag showing the path
to the source Haml file from which it was generated. Thanks [Alex Babkin](https://github.com/ababkin).
* Fix #@foo and #$foo style interpolation that was not working in html_safe mode. (Akira Matsuda)
* Add `haml_tag_if` to render a block, conditionally wrapped in another element (Matt Wildig)
* Escape Ruby script interpolated in filters. (Matt Wildig)
* The `haml` command's debug option (`-d`) no longer executes the Haml code, but
rather checks the generated Ruby syntax for errors.
* Support Rails 5.1 Erubi template handler.
* Support Sprockets 3. Thanks [Sam Davies](https://github.com/samphilipd) and [Jeremy Venezia](https://github.com/jvenezia).
* Allow `@` as tag's class name. Thanks [Joe Bartlett](https://github.com/redoPop).
* Raise `Haml::InvalidAttributeNameError` when attribute name includes invalid characters. (Takashi Kokubun)
* Drop dynamic quotes support and always escape `'` for `escape_html`/`escape_attrs` instead.
@ -33,11 +45,7 @@ Released on April 26, 2017
* Don't preserve newlines in attributes. (Takashi Kokubun)
* Add temple gem as dependency and create `Haml::TempleEngine` class.
Some methods in `Haml::Compiler` are migrated to `Haml::TempleEngine`. (Takashi Kokubun)
* Drop parser/compiler accessor from `Haml::Engine`. Modify `Haml::Engine#initialize` options
or `Haml::Template.options` instead. (Takashi Kokubun)
* Don't ignore unexpected exceptions on initializing `ActionView::OutputBuffer`. (Takashi Kokubun)
* Analyze attribute values by Ripper and render static attributes beforehand. (Takashi Kokubun)
* Optimize attribute rendering about 3x faster. (Takashi Kokubun)
## 4.0.7