From b68e17552cc8c78c2f7b187a783e6e419f2cc74e Mon Sep 17 00:00:00 2001
From: Rylan Polster <rslpolster@gmail.com>
Date: Tue, 6 Jul 2021 09:33:16 -0400
Subject: [PATCH] Only use `BottleAPI::latest_pkg_version` with env var

---
 Library/Homebrew/cmd/outdated.rb | 6 +++---
 Library/Homebrew/formula.rb      | 6 +++---
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/Library/Homebrew/cmd/outdated.rb b/Library/Homebrew/cmd/outdated.rb
index dc49defd60..f2079fae56 100644
--- a/Library/Homebrew/cmd/outdated.rb
+++ b/Library/Homebrew/cmd/outdated.rb
@@ -98,10 +98,10 @@ module Homebrew
           elsif f.head? && outdated_kegs.any? { |k| k.version.to_s == f.pkg_version.to_s }
             # There is a newer HEAD but the version number has not changed.
             "latest HEAD"
-          elsif f.tap.present?
-            f.pkg_version.to_s
-          else
+          elsif f.tap.blank? && ENV["HOMEBREW_JSON_CORE"].present?
             BottleAPI.latest_pkg_version(f.name)&.to_s || f.pkg_version.to_s
+          else
+            f.pkg_version.to_s
           end
 
           outdated_versions = outdated_kegs.group_by { |keg| Formulary.from_keg(keg).full_name }
diff --git a/Library/Homebrew/formula.rb b/Library/Homebrew/formula.rb
index 719aec9c07..ec14f8d450 100644
--- a/Library/Homebrew/formula.rb
+++ b/Library/Homebrew/formula.rb
@@ -1326,10 +1326,10 @@ class Formula
     Formula.cache[:outdated_kegs][cache_key] ||= begin
       all_kegs = []
       current_version = T.let(false, T::Boolean)
-      latest_version = if tap.present?
-        pkg_version
-      else
+      latest_version = if tap.blank? && ENV["HOMEBREW_JSON_CORE"].present?
         BottleAPI.latest_pkg_version(name) || pkg_version
+      else
+        pkg_version
       end
 
       installed_kegs.each do |keg|