diff --git a/_posts/2014-02-16-react-v0.9-rc1.md b/_posts/2014-02-16-react-v0.9-rc1.md
index 960b26c65..8da7d318b 100644
--- a/_posts/2014-02-16-react-v0.9-rc1.md
+++ b/_posts/2014-02-16-react-v0.9-rc1.md
@@ -68,6 +68,7 @@ In cases where you want to preserve the space adjacent to a newline, you can wri
 - On mouse wheel events, `deltaY` is no longer negated
 - When prop types validation fails, a warning is logged instead of an error thrown (with the production build of React, the type checks are now skipped for performance)
 - On `input`, `select`, and `textarea` elements, `.getValue()` is no longer supported; use `.getDOMNode().value` instead
+- this.context on components is now reserved for internal use by React
 
 #### New Features
 
diff --git a/_posts/2014-02-20-react-v0.9.md b/_posts/2014-02-20-react-v0.9.md
index 0a1b6526d..c9c890add 100644
--- a/_posts/2014-02-20-react-v0.9.md
+++ b/_posts/2014-02-20-react-v0.9.md
@@ -76,6 +76,7 @@ In cases where you want to preserve the space adjacent to a newline, you can wri
 - On mouse wheel events, `deltaY` is no longer negated
 - When prop types validation fails, a warning is logged instead of an error thrown (with the production build of React, type checks are now skipped for performance)
 - On `input`, `select`, and `textarea` elements, `.getValue()` is no longer supported; use `.getDOMNode().value` instead
+- this.context on components is now reserved for internal use by React
 
 #### New Features