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node_modules/postcss-discard-duplicates/CHANGELOG.md

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+# 4.0.0-rc.0
+
+* Breaking: Drops support for Node 0.12, we now require at least Node 4.
+* Breaking: Update PostCSS to 6.0.0.
+
+# 2.1.0
+
+* Now supports discarding duplicates irrespective of property order, better
+  support for legacy hacks & partial duplicate removal (thanks to @andyjansson).
+
+# 2.0.2
+
+* Major performance boost by lessening algorithmic complexity; each node is
+  now cached and the nested loop removed, meaning that each node is cast to a
+  string only once (thanks to @asztal).
+
+# 2.0.1
+
+* Now compiled with babel 6.
+* Minor performance boost from exiting from the `dedupe` function if the node
+  has less than two child nodes.
+
+# 2.0.0
+
+* Upgraded to PostCSS 5.
+
+# 1.2.1
+
+* Fixes an integration test failure with cssnano; use PostCSS `each` rather
+  than native `forEach` (thanks to @TrySound).
+
+# 1.2.0
+
+* Improved duplicate detection (thanks to @TrySound).
+
+# 1.1.6
+
+* Improved performance by caching string representations of nodes, and
+  minimising stringifying as much as possible (thanks to @TrySound).
+
+# 1.1.5
+
+* Fixed an issue where comments were being deduplicated.
+
+# 1.1.4
+
+* Improved performance by making all AST iterations in a single pass.
+
+# 1.1.3
+
+* Improved documentation for compatibility with the plugin guidelines.
+* Simplify main source code.
+
+# 1.1.2
+
+* Fixed an issue where declarations inside similar keyframes were being
+  discarded incorrectly.
+
+# 1.1.1
+
+* Fixed a bug where keyframe rules were being incorrectly discarded, if they had
+  the same declarations but different vendor prefixes.
+
+# 1.1.0
+
+* Now uses the PostCSS `4.1` plugin API.
+
+# 1.0.0
+
+* Initial release.