diff --git a/CHANGELOG.md b/CHANGELOG.md
index f57cafc8..57390f89 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,11 +3,11 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](http://keepachangelog.com/) 
 
-## Windows/Linux/MAC 5.1.2-preview - 2017-11-20
+## Windows/Linux/macOS 5.1.2-preview - 2017-11-20
 Updated PECL release packages. Here is the list of updates:
 
 ### Fixed
-- Support for non-UTF8 locales in Linux
+- Support for non-UTF8 locales in Linux and macOS
 - Fixed crash caused by executing an invalid query in a transaction (Issue [#434](https://github.com/Microsoft/msphpsql/issues/434))
 - Fixed regression in sqlsrv_next_result returning a no fields error when the active result set is null (Issue [#581](https://github.com/Microsoft/msphpsql/issues/581))
 - Fixed incorrect active result set when sqlsrv_next_result or PDOStatement::nextRowset is called when Column Encryption is enabled (Issue [#574](https://github.com/Microsoft/msphpsql/issues/574))
@@ -16,10 +16,10 @@ Updated PECL release packages. Here is the list of updates:
 - Added error handling for binding TEXT, NTEXT or IMAGE as output parameter (Issue [#231](https://github.com/Microsoft/msphpsql/issues/231))
 
 ### Limitations
-- In Linux, only support locale set in PHP if it is done before the first connection
+- In Linux and macOS, setlocale() only takes effect if it is invoked before the first connection. The subsequent locale setting will not work
 - Always Encrypted functionalities are only supported using [MSODBC 17 preview](https://github.com/Microsoft/msphpsql/tree/dev/ODBC%2017%20binaries%20preview)
   - ODBC binaries for macOS available upon request
-- MSODBC 17 preview msodbcsql.msi only works for Windows10
+- MSODBC 17 preview msodbcsql.msi only works in Windows10
 - [Always Encrypted limitations](https://github.com/Microsoft/msphpsql/wiki/Features#aelimitation)
 - When using sqlsrv_query with Always Encrypted feature, SQL type has to be specified for each input (see [here](https://github.com/Microsoft/msphpsql/wiki/Features#aebindparam))
 - No support for inout / output params when using sql_variant type
@@ -27,8 +27,8 @@ Updated PECL release packages. Here is the list of updates:
 ### Known Issues
 - Binding decimal input as a string when Column Encryption is enabled may change the precision of the input
 - Connection pooling on Linux doesn't work properly when using the MSODBC17 preview
-- When pooling is enabled in Linux or MAC
-  - unixODBC <= 2.3.4 (Linux and MAC) might not return proper diagnostics information, such as error messages, warnings and informative messages
+- When pooling is enabled in Linux or macOS
+  - unixODBC <= 2.3.4 (Linux and macOS) might not return proper diagnostics information, such as error messages, warnings and informative messages
   - due to this unixODBC bug, fetch large data (such as xml, binary) as streams as a workaround. See the examples [here](https://github.com/Microsoft/msphpsql/wiki/Connection-Pooling-on-Linux-and-Mac)
 
 ## Windows/Linux 5.1.1-preview - 2017-10-20