diff --git a/circle.yml b/circle.yml
deleted file mode 100644
index 8aa7e6da90..0000000000
--- a/circle.yml
+++ /dev/null
@@ -1,8 +0,0 @@
-machine:
-  node:
-    version:
-      0.10.46
-
-test:
-  override:
-    - make test-ci
diff --git a/doc/design/compiler-environment-support.md b/doc/design/compiler-environment-support.md
index 77c01b0878..1d5a867205 100644
--- a/doc/design/compiler-environment-support.md
+++ b/doc/design/compiler-environment-support.md
@@ -2,12 +2,12 @@
 
 **NOTE:** Compiler support does not dictate the runtime requirements of compiled code.
 
-## Supported environments
+## Officially supported environments
 
 The Babel compiler is **only** supported in these environments:
 
  - Modern browsers such as Chrome, Firefox, Safari, Edge etc.
- - Node 0.10+
+ - Node.js 4 and upper versions
 
 ## Unsupported environments
 
@@ -17,7 +17,6 @@ to:
  - Rhino
  - Nashorn
  - Internet Explorer
- - ...
 
 **NOTE:** If Babel works in any of the unsupported environments, it is purely
 coincidental and has no bearing on future compatibility. Use at your own risk.