Update CHANGES.txt with 3.11.0-RC1 release notes (#6909)
diff --git a/CHANGES.txt b/CHANGES.txt
index 5aaee72..fc909c4 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,3 +1,56 @@
+2019-11-19 version 3.11.0 (C++/Java/Python/PHP/Objective-C/C#/Ruby/JavaScript)
+
+ C++
+ * Make serialization method naming consistent
+ * Make proto runtime + generated code free of deprecation warnings
+ * Moved ShutdownProtobufLibrary() to message_lite.h. For backward compatibility a declaration is still available in stubs/common.h, but users should prefer message_lite.h
+ * Removed non-namespace macro EXPECT_OK()
+ * Removed mathlimits.h from stubs in favor of using std::numeric_limits from C++11
+ * Fixed bug in parser when ending on a group tag
+ * Add a helper function to UnknownFieldSet to deal with the changing return value of message::unknown_fields()
+ * Fix incorrect use of string_view iterators
+ * Support direct pickling of nested messages
+ * Skip extension tag validation for MessageSet if unknown dependencies are allowed
+ * Updated deprecation macros to annotate deprecated code (#6612)
+ * Remove conversion warning in MapEntryFuncs::ByteSizeLong (#6766)
+ * Make shared libraries be able to link to MSVC static runtime libraries (#6780)
+
+ Java
+ * Remove the usage of MethodHandle, so that Android users prior to API version 26 can use protobuf-java
+ * Publish ProGuard config for javalite
+ * Fix for StrictMode disk read violation in ExtensionRegistryLite
+ * Include part of the ByteString's content in its toString().
+ * Include unknown fields when merging proto3 messages in Java lite builders
+
+ Python
+ * Add float_precision option in json format printer
+ * Optionally print bytes fields as messages in unknown fields, if possible
+ * FieldPath: fix testing IsSet on root path ''
+ * Experimental code gen (fast import protobuf module) which only work with cpp generated code linked in
+
+ JavaScript
+ * Remove guard for Symbol iterator for jspb.Map
+
+ PHP
+ * Avoid too much overhead in layout_init (#6716)
+ * Lazily Create Singular Wrapper Message (#6833)
+
+ Ruby
+ * Ruby lazy wrappers optimization (#6797)
+
+ C#
+ * (RepeatedField): Capacity property to resize the internal array (#6530)
+ * Experimental proto2 support is now officially available (#4642, #5183, #5350, #5936)
+ * Getting started doc: https://github.com/protocolbuffers/protobuf/blob/master/docs/csharp/proto2.md
+ * Add length checks to ExtensionCollection (#6759)
+ * Optimize parsing of some primitive and wrapper types (#6843)
+ * Use 3 parameter Encoding.GetString for default string values (#6828)
+ * Change _Extensions property to normal body rather than expression (#6856)
+
+ Objective C
+ * Fixed unaligned reads for 32bit arm with newer Xcode versions (#6678)
+
+
2019-09-03 version 3.10.0 (C++/Java/Python/PHP/Objective-C/C#/Ruby/JavaScript)
C++
