diff --git a/doc/build-osx.md b/doc/build-osx.md
index bc90a3056..63a7ee28c 100644
--- a/doc/build-osx.md
+++ b/doc/build-osx.md
@@ -90,6 +90,6 @@ Uncheck everything except Qt Creator during the installation process.
 Notes
 -----
 
-* Tested on OS X 10.7 through 10.11 on 64-bit Intel processors only.
+* Tested on OS X 10.8 through 10.12 on 64-bit Intel processors only.
 
 * Building with downloaded Qt binaries is not officially supported. See the notes in [#7714](https://github.com/bitcoin/bitcoin/issues/7714)
diff --git a/doc/release-notes.md b/doc/release-notes.md
index 0941290c8..75c2d61be 100644
--- a/doc/release-notes.md
+++ b/doc/release-notes.md
@@ -36,6 +36,10 @@ No attempt is made to prevent installing or running the software on Windows XP,
 you can still do so at your own risk, but do not expect it to work: do not
 report issues about Windows XP to the issue tracker.
 
+From 0.13.1 onwards OS X 10.7 is no longer supported. 0.13.0 was intended to work on 10.7+, 
+but severe issues with the libc++ version on 10.7.x keep it from running reliably. 
+0.13.1 now requires 10.8+, and will communicate that to 10.7 users, rather than crashing unexpectedly.
+
 Notable changes
 ===============