Merge pull request #566 from Carreau/changelog-part-1

docs/source/changelog.rst

@@ -1,6 +1,27 @@
 Changes in Traitlets
 ====================
 
+Traitlets 5.0
+-------------
+
+:ghpull:`319` adds ability to introduce both shot and long version of aliases, allowing for short and long options ``-``
+and ``--``.
+:ghpull:`362` , ghpull:`361` introduces:
+ - help for aliases , aliases dict values can now be a tuple with ('target', 'help string')
+ - subcommands can now be arbitrary callable and do not need to be subclass of `Application`
+:ghpull:`333` introduces a `Callable` trait.
+:ghpull:`371` introduces a `FuzzyEnum` trait that allow case insensitive and unique prefix matching.
+:ghpull:`509` remove all base ``except:`` meaning traitlets will not catch a number of `BaseException` s anymore.
+:ghpull:`438` introduces ``.info_rst()`` to let traitlets overwrite the automatically generated rst documentation.
+:ghpull:`402` rewrite handling of error messages for nested traits.
+:ghpull:`322` rewrite commandline argument parsing to use argparse, and allow more flexibility in assingin literals
+without quoting.
+:ghpull:`341` introduces ``--Application.show_config=True``  which will make by default any application show it
+configuration, all the files it loaded configuration from, and exit.
+:ghpull:`340` Old way of passing containers in the command line is now deprecated, and will emit warnign on the command
+line.
+
+
 4.3
 ---