From 131db26cbd8c45dd08941e8a9677f7eb9165f080 Mon Sep 17 00:00:00 2001
From: Eli White <eliwhite@fb.com>
Date: Fri, 5 Oct 2018 10:12:06 -0700
Subject: [PATCH] Deprecate legacyImplementation

Summary: The legacy implementation doesn't provide additional functionality and has a negative impact on performance and user experience. The legacyImplementation prop is deprecated and will be removed in a future release.

Reviewed By: yungsters

Differential Revision: D10212762

fbshipit-source-id: 9b3416434ba392827b538c984c7ab4bcbe156e60
---
 Libraries/Lists/FlatList.js | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/Libraries/Lists/FlatList.js b/Libraries/Lists/FlatList.js
index adebd267f7f..9923574c789 100644
--- a/Libraries/Lists/FlatList.js
+++ b/Libraries/Lists/FlatList.js
@@ -524,8 +524,9 @@ class FlatList<ItemT> extends React.PureComponent<Props<ItemT>, void> {
       // comparison.
       if (!this._hasWarnedLegacy) {
         console.warn(
-          'FlatList: Using legacyImplementation - some features not supported and performance ' +
-            'may suffer',
+          'FlatList: legacyImplementation is deprecated and will be removed in a ' +
+            'future release - some features not supported and performance may suffer. ' +
+            'Please migrate to the default implementation.',
         );
         this._hasWarnedLegacy = true;
       }