README.md in google-cloud-env-1.0.1 vs README.md in google-cloud-env-1.0.2

- old
+ new

@@ -6,9 +6,16 @@
 
 ## Supported Ruby Versions
 
 This library is supported on Ruby 2.0+.
 
+However, Ruby 2.3 or later is strongly recommended, as earlier releases have
+reached or are nearing end-of-life. After June 1, 2018, Google will provide
+official support only for Ruby versions that are considered current and
+supported by Ruby Core (that is, Ruby versions that are either in normal
+maintenance or in security maintenance).
+See https://www.ruby-lang.org/en/downloads/branches/ for further details.
+
 ## Versioning
 
 This library follows [Semantic Versioning](http://semver.org/).
 
 It is currently in major version zero (0.y.z), which means that anything may change at any time and the public API should not be considered stable.