Update changelog from master

doc/changelog.asciidoc

@@ -15,14 +15,28 @@ breaking changes (such as renamed commands) can happen in minor releases.
 // `Fixed` for any bug fixes.
 // `Security` to invite users to upgrade in case of vulnerabilities.
 
-v1.3.0 (unreleased)
--------------------
+v1.2.1
+------
 
 Fixed
 ~~~~~
 
-- qutebrowser now starts properly when the PyQt5 QOpenGLFunctions package wasn't found.
-- The keybinding cheatsheet on the quickstart page is now loaded from a local `qute://` URL again.
+- qutebrowser now starts properly when the PyQt5 QOpenGLFunctions package wasn't
+  found.
+- The keybinding cheatsheet on the quickstart page is now loaded from a local
+  `qute://` URL again.
+- With "tox -e mkvenv-pypi", PyQt 5.10.0 is used again instead of Qt 5.10.1,
+  because of an issue with Qt 5.10.1 which causes qutebrowser to fail to start
+  ("Could not find QtWebEngineProcess").
+- Unbinding keys which were bound in older qutebrowser versions now doesn't
+  crash anymore.
+- Fixed a crash when reloading a page which wasn't fully loaded with v1.2.0
+- Keys on the numeric keypad now fall back to the same bindings without `Num+`
+  if no `Num+` binding was found.
+- Fixed hinting on some pages with Qt < 5.10.
+- Titles are now displayed correctly again for tabs which are cloned or loaded
+  from sessions.
+- Shortcuts now correctly use `Ctrl` instead of `Command` on macOS again.
 
 v1.2.0
 ------