Update changelog for chacha, hc128 and isaac sub-crates
diff --git a/rand_chacha/CHANGELOG.md b/rand_chacha/CHANGELOG.md
index 5c83b3a..d0c4a2fc 100644
--- a/rand_chacha/CHANGELOG.md
+++ b/rand_chacha/CHANGELOG.md
@@ -4,5 +4,5 @@
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [0.1.0] - 2018-09-??
+## [0.1.0] - 2018-10-17
 - Pulled out of the Rand crate
diff --git a/rand_hc128/CHANGELOG.md b/rand_hc128/CHANGELOG.md
index 5c83b3a..d0c4a2fc 100644
--- a/rand_hc128/CHANGELOG.md
+++ b/rand_hc128/CHANGELOG.md
@@ -4,5 +4,5 @@
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [0.1.0] - 2018-09-??
+## [0.1.0] - 2018-10-17
 - Pulled out of the Rand crate
diff --git a/rand_isaac/CHANGELOG.md b/rand_isaac/CHANGELOG.md
index 9a896a5..d0c4a2fc 100644
--- a/rand_isaac/CHANGELOG.md
+++ b/rand_isaac/CHANGELOG.md
@@ -4,5 +4,5 @@
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [0.1.0] - 2018-07-16
+## [0.1.0] - 2018-10-17
 - Pulled out of the Rand crate