CHANGELOG.md in gretel-3.0.0.beta4 vs CHANGELOG.md in gretel-3.0.0.beta5

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 Version 3.0
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 * Support for defining breadcrumbs using `Gretel::Crumbs.layout do ... end` in an initializer has been removed. See the readme for details on how to upgrade.
-* Support for setting trails via the URL – `params[:trail]`. This makes it possible to link back to a different breadcrumb trail than the one specified in your breadcrumb,
-  for example if you have a store with products that have a default parent to their category, but when linking from the review section, you want to link back to the reviews instead.
-  See the readme for more info.
 * Breadcrumbs rendering is now done in a separate class to unclutter the view with helpers. The public API is still the same.
 * Support for rendering the breadcrumbs in different styles like ul- and ol lists, and for use with [Twitter Bootstrap](http://getbootstrap.com/). See the `:style` option in the readme for more info.
 * The `:show_root_alone` option is now called `:display_single_fragment` and can be used to display the breadcrumbs only when there are more than one link, also if it is not the root breadcrumb.
 * Links yielded from `<%= breadcrumbs do |links| %>` now have a `current?` helper that returns true if the link is the last in the trail.
-* New view helper: `parent_breadcrumb` returns the parent breadcrumb link (with `#key`, `#text`, and `#url`). You can supply options like `:autoroot` etc.
+* New view helper: `parent_breadcrumb` returns the parent breadcrumb link (with `#key`, `#text`, and `#url`). This can for example be used to create a dynamic back link. You can supply options like `:autoroot` etc.
   If you supply a block, it will yield the parent breadcrumb if it is present.
 
 Version 2.1
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 * Breadcrumbs are now configured in `config/breadcrumbs.rb` and `config/breadcrumbs/**/*.rb` and reloaded when changed in the development environment instead of the initializer that required restart when configuration changed.
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