CHANGELOG: 1.21.1
# Changelog
+## [1.21.1] - 2019-12-19
+
+A panic occurred if a `rustup update` was run with nothing to update and the
+download directory was missing. This was harmless but could have confused some
+automation jobs.
+
## [1.21.0] - 2019-12-19
In release 1.20.x profiles could incorrectly ascribe host-independent components
