CHANGELOG.md in semmy-0.4.0 vs CHANGELOG.md in semmy-1.0.0

@@ -1,34 +1,28 @@
 # CHANGELOG
 
-### Version 0.4.0
+### Version 1.0.0
 
 2017-07-13
 
-[Compare changes](https://github.com/tf/semmy/compare/0-3-stable...v0.4.0)
+[Compare changes](https://github.com/tf/semmy/compare/0-x-stable...v1.0.0)
 
-- Only keep sections for current minor version in changelog and link
-  to previous stable branch.
-- Compare minor versions to previous stable branch.
+##### Breaking Changes
 
-### Version 0.3.0
+- A typo in the name of the `changelog_unreleased_section_heading` and
+  `changelog_unreleased_section_blank_slate` options was fixed.
+- The default value of `changelog_unreleased_section_heading` changed
+  to "Unreleased Changes". You need to update the header in your
+  changelog or manually set the previous value via the configuration option.
 
-2016-09-09
+##### New Features
 
-[Compare changes](https://github.com/tf/semmy/compare/v0.2.0...v0.3.0)
+- Add `bump:patch` task which begins a patch level release.
+- Add `bump:mahor` task which updates the major version.
 
-- Fix default GitHub compare url.
-- Add link comparing to last patch level for stable release.
+##### Bug Fixes
 
-### Version 0.2.0
+- Fix indentation of generated unreleased changes section.
 
-2016-06-09
-
-[Compare changes](https://github.com/tf/semmy/compare/v0.1.0...v0.2.0)
-
-- Fine tune default commit messages.
-
-### Version 0.1.0
-
-2016-06-09
-
-- Initial release
+See
+[0-x-stable branch](https://github.com/tf/semmy/blob/0-x-stable/CHANGELOG.md)
+for previous changes.