{"version":"1.0","provider_url":"https://hatena.blog","author_url":"https://blog.hatena.ne.jp/play-mizuki-shinohara/","blog_title":"PLAY DEVELOPERS BLOG","blog_url":"https://developers.play.jp/","height":"190","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fdevelopers.play.jp%2Fentry%2F2025%2F04%2F21%2F183228\" title=\"React 17 \u304b\u3089 React 19 \u3078\u306e\u6bb5\u968e\u7684\u306a\u30d0\u30fc\u30b8\u30e7\u30f3\u30a2\u30c3\u30d7\u3068 Legacy Context \u306e\u8a71 - PLAY DEVELOPERS BLOG\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_name":"Hatena Blog","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/p/playjp/20250421/20250421123505.jpg","categories":["\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9"],"width":"100%","published":"2025-04-21 18:32:28","url":"https://developers.play.jp/entry/2025/04/21/183228","author_name":"play-mizuki-shinohara","type":"rich","description":"\u7686\u69d8\u306f\u3058\u3081\u307e\u3057\u3066\u3002 24\u5352\u3067\u65b0\u5352\u5165\u793e\u3044\u305f\u3057\u307e\u3057\u305f\u3001OTT\u30b5\u30fc\u30d3\u30b9\u6280\u8853\u90e8\u306e\u7be0\u539f\u3067\u3059\u3002 \u672c\u7a3f\u3067\u306f\u3001React 17 \u304b\u3089 React 19 \u3078\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u30a2\u30c3\u30d7\u306b\u4f34\u3044\u5b9f\u65bd\u3057\u305f\u5bfe\u5fdc\u306b\u3064\u3044\u3066\u7d39\u4ecb\u3057\u307e\u3059\u3002 \u524d\u63d0 React 19 \u3078\u306e\u79fb\u884c\u306e\u30dd\u30a4\u30f3\u30c8 \u5168\u4f53\u306e\u79fb\u884c\u65b9\u91dd \u3053\u306e\u79fb\u884c\u65b9\u6cd5\u3092\u63a1\u7528\u3057\u305f\u80cc\u666f React 19 \u3078\u306e\u79fb\u884c\u3067\u767a\u751f\u3057\u305f\u554f\u984c\u3068\u5bfe\u5fdc React 17 \u306e\u6642\u70b9\u3067\u5bfe\u5fdc\u3057\u305f\u4fee\u6b63 React 17 \u2192 React 18 \u3078\u306e\u79fb\u884c\u3067\u767a\u751f\u3057\u305f\u554f\u984c \u539f\u56e0 \u5bfe\u5fdc React 18 \u2192 React 19 \u3078\u306e\u79fb\u884c\u3067\u767a\u751f\u3057\u305f\u554f\u984c \u539f\u56e0 \u5bfe\u5fdc codemod \u3092\u4f7f\u3063\u305f\u81ea\u52d5\u79fb\u884c\u306e\u8a66\u307f codemod \u3068\u306f codemod\u2026","title":"React 17 \u304b\u3089 React 19 \u3078\u306e\u6bb5\u968e\u7684\u306a\u30d0\u30fc\u30b8\u30e7\u30f3\u30a2\u30c3\u30d7\u3068 Legacy Context \u306e\u8a71"}