Adds CHANGELOG for #194

Author: weierophinney

CHANGELOG.md

@@ -2,7 +2,7 @@
 
 All notable changes to this project will be documented in this file, in reverse chronological order by release.
 
-## 2.10.1 - TBD
+## 2.10.1 - 2017-08-22
 
 ### Added
 
@@ -22,7 +22,10 @@ All notable changes to this project will be documented in this file, in reverse
 
 ### Fixed
 
-- Nothing.
+- [#194](https://github.com/zendframework/zend-validator/pull/194) modifies the
+  `EmailAddress` validator to omit the `INTL_IDNA_VARIANT_UTS46` flag to
+  `idn_to_utf8()` if the constant is not defined, fixing an issue on systems
+  using pre-2012 releases of libicu.
 
 ## 2.10.0 - 2017-08-14