sentry-raven.gemspec in sentry-raven-3.1.1 vs sentry-raven.gemspec in sentry-raven-3.1.2

@@ -16,6 +16,13 @@
   gem.files = `git ls-files | grep -Ev '^(spec|benchmarks|examples)'`.split("\n")
   gem.bindir = "exe"
   gem.executables = "raven"
 
   gem.add_dependency "faraday", ">= 1.0"
+
+  gem.post_install_message = <<~EOS
+    `sentry-raven` is deprecated! Please migrate to `sentry-ruby`
+
+    See https://docs.sentry.io/platforms/ruby/migration for the migration guide.
+
+  EOS
 end