From 2f776ed5233cf9620d7a9284b013a8a0f6572d10 Mon Sep 17 00:00:00 2001
From: Mike McQuaid <mike@mikemcquaid.com>
Date: Fri, 2 Mar 2018 21:23:04 +0000
Subject: [PATCH] migrator: recommend `brew upgrade`.
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You’re in a weird middle state if you run `brew update` but haven’t
upgraded a migrated formula.
---
 Library/Homebrew/migrator.rb | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Library/Homebrew/migrator.rb b/Library/Homebrew/migrator.rb
index 8664d474be..6c03219382 100644
--- a/Library/Homebrew/migrator.rb
+++ b/Library/Homebrew/migrator.rb
@@ -193,6 +193,11 @@ class Migrator
     link_oldname_opt
     link_newname unless old_linked_keg.nil?
     update_tabs
+    return unless formula.outdated?
+    opoo <<~EOS
+      #{Formatter.identifier(newname)} is outdated! Please run as soon as possible:
+        brew upgrade #{newname}
+    EOS
   rescue Interrupt
     ignore_interrupts { backup_oldname }
   rescue Exception => e # rubocop:disable Lint/RescueException