diff --git a/API-Breaking-Changes.md b/API-Breaking-Changes.md
index 3318d85..daead3e 100644
--- a/API-Breaking-Changes.md
+++ b/API-Breaking-Changes.md
@@ -1,3 +1,7 @@
+# TypeScript 3.1
+
+- `SymbolFlags.JSContainer` has been renamed to `SymbolFlags.Assignment` to reflect that Typescript now supports expando assignments to functions.
+
 # TypeScript 3.0
 
 - The deprecated internal method `LanguageService#getSourceFile` has been removed. See #24540.
@@ -31,11 +35,11 @@ See https://github.com/Microsoft/TypeScript/pull/15594 for more details.
 
 # TypeScript 2.1
 
-- `ParseConfigHost` now require a new member `readFile` to support [configuration inheritance](https://github.com/Microsoft/TypeScript/pull/9941).
+- `ParseConfigHost` now requires a new member `readFile` to support [configuration inheritance](https://github.com/Microsoft/TypeScript/pull/9941).
 
 # TypeScript 1.9
 
-- `LanguageService.getSourceFile` is removed (https://github.com/Microsoft/TypeScript/pull/7584), `LanguageService.getProgram().getSourceFile` should be used instead.
+- [`LanguageService.getSourceFile` is removed](https://github.com/Microsoft/TypeScript/pull/7584), `LanguageService.getProgram().getSourceFile` should be used instead.
 
 # TypeScript 1.7
 
@@ -95,4 +99,4 @@ We did some cleanup to the public interfaces, here is the full list of changes:
 
 The two files exposed helpers in the past that were not part of the supported TypeScript API. If you were using any of these APIs please file an issue to re-expose them; requests for exposing helper APIs will be triaged on a case-per-case basis.
 
-For more information please see the [full change](https://github.com/Microsoft/TypeScript/pull/2692).
\ No newline at end of file
+For more information please see the [full change](https://github.com/Microsoft/TypeScript/pull/2692).