diff --git a/CHANGELOG.md b/CHANGELOG.md
index b96bb0cd..839f0b80 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,35 @@ 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/macOS 5.2.0-RC - 2017-12-20
+Updated PECL release packages. Here is the list of updates:
+
+### Added
+- Added support for Ubuntu 17 (requires [MSODBC 17 preview](https://github.com/Microsoft/msphpsql/tree/dev/ODBC%2017%20binaries%20preview))
+- Added support for Debian 9 (requires [MSODBC 17 preview](https://github.com/Microsoft/msphpsql/tree/dev/ODBC%2017%20binaries%20preview))
+
+### Fixed
+- Issue [#555](https://github.com/Microsoft/msphpsql/issues/555) - Hebrew strings truncation (requires [MSODBC 17 preview](https://github.com/Microsoft/msphpsql/tree/dev/ODBC%2017%20binaries%20preview))
+- Issue [#615](https://github.com/Microsoft/msphpsql/issues/615) - Added error handling when fetching varchar(max) as a stream with Always Encrypted
+- Adjusted precisions for numeric/decimal inputs with Always Encrypted
+- Fixed bugs when binding parameters with Always Encrypted
+- Fixed warnings as per Prefast code analysis
+
+### Limitations
+- 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 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
+
+### Known Issues
+- Connection pooling on Linux doesn't work properly when using the MSODBC17 preview
+- 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/macOS 5.1.2-preview - 2017-11-21
 Updated PECL release packages. Here is the list of updates: