Updated Changelog

crystal-lang · Dec 23, 2016 · f15f5a8 · f15f5a8
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+## 0.20.2 (23-12-2016)
+
+* **(breaking change)** `IO#gets`, `IO#each_line`, `String#lines`, `String#each_line`, etc. now chomp lines by default. You can pass `chomp: false` to prevent automatic chomping. Note that `chomp` is `true` by default for argless `IO#gets` (read line) but `false` if args are given.
+* **(breaking change)** `HTTP::Handler` is now a module instead of a class (thanks @andrewhamon)
+* **(breaking change)** Free variables now must be specified with `forall`, a single uppercase letter will not work anymore
+* **(breaking change)** The `libs` directory is no longer in the default CRYSTAL_PATH, use `lib` (running `crystal deps` should fix this)
+* Optimized compile times, specially on linux
+* `private` can now be used with macros inside types (thanks @MakeNowJust)
+* CLI: the `-s`/`--stats` option now also shows execution time (thanks @MakeNowJust)
+* CLI: added `-t`/`--time` to show execution time (thanks @MakeNowJust)
+* `Socket` now allows any family/type/protocol association, [and many other improvements](https://github.com/crystal-lang/crystal/pull/3750) (thanks @ysbaddaden)
+* YAML: an `IO` can now be passed to `from_yaml` (thanks @MakeNowJust)
+* Added `class_getter`, `class_setter`, `class_property`, etc. (thanks @Sija)
+* Added `String#lchomp` (thanks @Sija)
+* Added `IO#read_fully?`
+* Added `Iterator#flatten` (thanks @MakeNowJust)
+* Added `HTTP::WebSocket#ping`, `pong`, `on_ping`, `on_pong`, and now a ping message is automatically replied with a pong message (thanks @Sija)
+* Added `File#empty?` and `Dir#empty?` (thanks @dylandrop)
+* Added `Time::Span#/(Time::Span)` (thanks @RX14)
+* Added `String#split` versions that accept a block (thanks @splattael)
+* Added `URI#normalize` and `normalize!` (thanks @taylorfinnell)
+* Added `reuse` optional argument to many `Array`, `Enumerable` and `Iterable` methods that allow you to reuse the yielded/return array for better performance and less memory footprint
+* The `:debug` flag is now present when compiled with `--debug`, useful for doing `flag?(:debug)` in macros (thanks @luislavena)
+* [Many bug fixes and performance improvements](https://github.com/crystal-lang/crystal/issues?q=is%3Aclosed+milestone%3A0.20.2)
+
 ## 0.20.1 (05-12-2016)
 
 * **(breaking change)** `Set#merge` as renamed to `Set#merge!`