{"id":367975,"date":"2023-06-30T07:06:39","date_gmt":"2023-06-30T06:06:39","guid":{"rendered":"https:\/\/blog.jetbrains.com\/kotlin\/2023\/02\/k2-kotlin-2-0\/"},"modified":"2023-06-30T07:06:44","modified_gmt":"2023-06-30T06:06:44","slug":"k2-kotlin-2-0","status":"publish","type":"kotlin","link":"https:\/\/blog.jetbrains.com\/ja\/kotlin\/2023\/06\/k2-kotlin-2-0\/","title":{"rendered":"K2 \u30b3\u30f3\u30d1\u30a4\u30e9\u30fc\u304c Kotlin 2.0 \u3067\u5b89\u5b9a\u7248\u306b"},"content":{"rendered":"<p>JetBrains \u306f\u9577\u3089\u304f Kotlin \u30b3\u30f3\u30d1\u30a4\u30e9\u30fc\uff08\u30b3\u30fc\u30c9\u30cd\u30fc\u30e0\u300c<strong>K2<\/strong>\u300d\uff09\u306e\u65b0\u3057\u3044\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u306b\u53d6\u308a\u7d44\u3093\u3067\u304d\u307e\u3057\u305f\u3002 \u3053\u306e\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u306f\u30b3\u30fc\u30c9\u306e\u69cb\u6587\u3092\u89e3\u6790\u3057\u3066\u30bb\u30de\u30f3\u30c6\u30a3\u30c3\u30af\u89e3\u6790\u3001\u30c7\u30fc\u30bf\u30d5\u30ed\u30fc\u89e3\u6790\u3001\u547c\u3073\u51fa\u3057\u89e3\u6c7a\u3001\u304a\u3088\u3073\u578b\u63a8\u8ad6\u3092\u5b9f\u884c\u3059\u308b\u30b3\u30f3\u30d1\u30a4\u30e9\u30fc\u306e\u69cb\u6210\u8981\u7d20\u3067\u3042\u308a\u3001 \u958b\u767a\u8005\u304c\u6700\u3082\u3088\u304f\u95a2\u308f\u308b\u30b3\u30f3\u30d1\u30a4\u30e9\u30fc\u306e\u69cb\u6210\u8981\u7d20\u3067\u3082\u3042\u308a\u307e\u3059\u3002 \u307e\u305f\u3001IDE \u5185\u3067\u7d99\u7d9a\u7684\u306b\u52d5\u4f5c\u3057\u3066\u3059\u3079\u3066\u306e\u30a8\u30e9\u30fc\u3068\u8b66\u544a\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u5831\u544a\u3057\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u81ea\u52d5\u88dc\u5b8c\u3001\u30bb\u30de\u30f3\u30c6\u30a3\u30af\u30b9\u3092\u8a8d\u8b58\u3059\u308b\u30a4\u30f3\u30b9\u30da\u30af\u30b7\u30e7\u30f3\u3001\u30a4\u30f3\u30c6\u30f3\u30b7\u30e7\u30f3\u3001\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u306a\u3069\u306e\u30bf\u30b9\u30af\u3092\u884c\u3048\u308b\u3088\u3046\u306b\u3059\u308b\u5f79\u5272\u3082\u62c5\u3063\u3066\u3044\u307e\u3059\u3002 \u65b0\u3057\u3044\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u306f\u3059\u3067\u306b\u30d7\u30ec\u30d3\u30e5\u30fc\u304c\u516c\u958b\u3055\u308c\u3066\u3044\u307e\u3059\u304c\u3001\u79c1\u305f\u3061\u306f\u305d\u306e\u7d99\u7d9a\u7684\u306a\u6539\u5584\u3068\u5b89\u5b9a\u5316\u306b\u52aa\u3081\u3066\u304a\u308a\u3001\u4eca\u5f8c\u306e Kotlin \u30ea\u30ea\u30fc\u30b9\u3067\u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u30b3\u30f3\u30d1\u30a4\u30e9\u30fc\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u306b\u3059\u308b\u4e88\u5b9a\u3067\u3059\u3002 \u305d\u3057\u3066\u3001\u4eca\u5f8c\u4e88\u5b9a\u3055\u308c\u3066\u3044\u308b\u3053\u306e\u30ea\u30ea\u30fc\u30b9\u3092 <strong>Kotlin 2.0<\/strong> \u3068\u540d\u4ed8\u3051\u308b\u3053\u3068\u306b\u3057\u307e\u3057\u305f\u3002 Kotlin 2.0 \u30ea\u30ea\u30fc\u30b9\u306e\u30ed\u30fc\u30c9\u30de\u30c3\u30d7\u3001JetBrains \u306e\u53d6\u308a\u7d44\u307f\u3068\u671f\u5f85\u3055\u308c\u308b\u6210\u679c\u306b\u3064\u3044\u3066\u306f\u4ee5\u4e0b\u3092\u304a\u8aad\u307f\u304f\u3060\u3055\u3044\u3002<\/p>\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-321786\" src=\"https:\/\/blog.jetbrains.com\/wp-content\/uploads\/2023\/02\/DSGN-15525-Blog-Post-about-Kotlin-2.0_kotlinlang.org_.png\" alt=\"\" width=\"2000\" height=\"656\"><\/figure>\n<h2 class=\"wp-block-heading\">Kotlin 2.0 \u306e\u30ea\u30ea\u30fc\u30b9\u30ed\u30fc\u30c9\u30de\u30c3\u30d7\u306b\u3064\u3044\u3066<\/h2>\n<p>\u5f93\u6765\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u7ba1\u7406\u3092\u5f15\u304d\u7d99\u3050 Kotlin 1.9 \u3092\u5225\u9014\u30ea\u30ea\u30fc\u30b9\u3059\u308b\u4e88\u5b9a\u3067\u3059\u3002\u3053\u306e\u30ea\u30ea\u30fc\u30b9\u306b\u306f\u3001\u5b89\u5b9a\u5316\u306b\u8fd1\u3065\u3044\u3066\u3044\u308b\u958b\u767a\u4e2d\u306e K2 \u30b3\u30f3\u30d1\u30a4\u30e9\u30fc\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u306e\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3082\u542b\u307e\u308c\u307e\u3059\u3002 Kotlin 1.10 \u306f\u4e88\u5b9a\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u3002 Kotlin 1.9 \u306e\u6b21\u306e\u30e1\u30b8\u30e3\u30fc\u30d0\u30fc\u30b8\u30e7\u30f3\u306f Kotlin 2.0 \u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2 class=\"wp-block-heading\">Kotlin 2.0 \u3092\u30ea\u30ea\u30fc\u30b9\u3059\u308b\u7406\u7531<\/h2>\n<p>\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u306f\u30b3\u30f3\u30d1\u30a4\u30e9\u30fc\u306e\u91cd\u8981\u306a\u69cb\u6210\u8981\u7d20\u3067\u3059\u3002K2 \u30b3\u30f3\u30d1\u30a4\u30e9\u30fc\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u306f\u5358\u306b\u5f93\u6765\u306e\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u3092\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u3057\u305f\u3082\u306e\u3067\u306f\u306a\u304f\u3001\u65b0\u3057\u3044\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306b\u57fa\u3065\u3044\u3066\u30bc\u30ed\u304b\u3089\u5b8c\u5168\u306b\u66f8\u304d\u76f4\u3055\u308c\u3066\u3044\u307e\u3059\u3002 JetBrains \u306f\u3053\u308c\u307e\u3067\u3055\u307e\u3056\u307e\u306a\u30d6\u30ed\u30b0\u3001\u52d5\u753b\u3001\u304a\u3088\u3073\u30ab\u30f3\u30d5\u30a1\u30ec\u30f3\u30b9\u8b1b\u6f14\u3067\u6280\u8853\u7684\u306a\u5909\u66f4\u70b9\u3092\u8a73\u7d30\u306b\u516c\u958b\u3057\u3066\u304d\u307e\u3057\u305f\u3002 \u3055\u3089\u306b\u60c5\u5831\u304c\u5fc5\u8981\u306a\u5834\u5408\u306f\u3001<a title=\"https:\/\/blog.jetbrains.com\/kotlin\/2021\/10\/the-road-to-the-k2-compiler\/\" href=\"https:\/\/blog.jetbrains.com\/kotlin\/2021\/10\/the-road-to-the-k2-compiler\/\" target=\"_blank\" rel=\"noreferrer noopener\">The Road to the K2 Compiler<\/a> \u304b\u3089\u8aad\u307f\u59cb\u3081\u308b\u3053\u3068\u3092\u304a\u52e7\u3081\u3057\u307e\u3059\u3002 \u624b\u77ed\u306b\u8a00\u3048\u3070\u3001\u65b0\u3057\u3044\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306f\u8a2d\u8a08\u306b\u3088\u3063\u3066\u9ad8\u901f\u5316\u3068\u62e1\u5f35\u6027\u306e\u5411\u4e0a\u304c\u56f3\u3089\u308c\u3066\u304a\u308a\u3001\u5f93\u6765\u306e\u30b3\u30f3\u30d1\u30a4\u30e9\u30fc\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u304c\u62b1\u3048\u3066\u3044\u305f\u6280\u8853\u7684\u8ca0\u50b5\u306e\u89e3\u6c7a\u3068\u5404\u6240\u306b\u304a\u3051\u308b\u30d0\u30b0\u3068\u30b3\u30fc\u30ca\u30fc\u30b1\u30fc\u30b9\u306e\u4fee\u6b63\u304c\u306a\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u307e\u305f\u3001\u3053\u306e\u8a00\u8a9e\u306e\u5c06\u6765\u7684\u306a\u62e1\u5f35\u3078\u306e\u9053\u3092\u5207\u308a\u958b\u304f\u3082\u306e\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u3067\u306f\u91cd\u8981\u306a\u6a5f\u80fd\u3084\u5927\u898f\u6a21\u306a\u5909\u66f4\u304c\u5c0e\u5165\u3055\u308c\u308b\u5834\u5408\u306b\u30e1\u30b8\u30e3\u30fc\u30d0\u30fc\u30b8\u30e7\u30f3\u304c\u5897\u5206\u3055\u308c\u308b\u306e\u304c\u4e00\u822c\u7684\u3067\u3059\u3002 \u3057\u304b\u3057\u3001\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u306f\u6a5f\u80fd\u30bb\u30c3\u30c8\u304c\u307b\u307c\u5909\u308f\u3089\u306a\u3044\u5834\u5408\u3067\u3082\u5927\u5e45\u306a\u66f8\u304d\u63db\u3048\u306b\u3088\u3063\u3066\u5927\u898f\u6a21\u306a\u6539\u826f\u304c\u884c\u308f\u308c\u308b\u5834\u5408\u306b\u306f\u30e1\u30b8\u30e3\u30fc\u30d0\u30fc\u30b8\u30e7\u30f3\u304c\u5897\u5206\u3055\u308c\u307e\u3059\u3002 Kotlin \u306f\u8a00\u8a9e\u3067\u306f\u3042\u308a\u307e\u3059\u304c\u3001\u3053\u306e\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u306e\u6163\u7fd2\u306b\u5f93\u3046\u3053\u3068\u306b\u3057\u307e\u3057\u305f\u3002 \u305d\u3082\u305d\u3082 Kotlin \u30b3\u30f3\u30d1\u30a4\u30e9\u30fc\u306f\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u306e\u5927\u4f5c\u3060\u304b\u3089\u3067\u3059\u3002 Kotlin \u8a00\u8a9e\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u306f\u3001\u305d\u306e\u30b3\u30f3\u30d1\u30a4\u30e9\u30fc\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u306b\u3088\u3063\u3066\u5b9a\u7fa9\u3055\u308c\u307e\u3059\u3002 <a href=\"https:\/\/kotlinlang.org\/spec\/introduction.html\" target=\"_blank\" rel=\"noreferrer noopener\">Kotlin \u306e\u4ed5\u69d8<\/a>\u306f\u8a00\u8a9e\u306e\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\u3068\u3057\u3066\u63d0\u4f9b\u3055\u308c\u3066\u3044\u308b\u3082\u306e\u3067\u3042\u308a\u3001\u305d\u308c\u3092\u5b9a\u7fa9\u3059\u308b\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<h2 class=\"wp-block-heading\">\u30b3\u30fc\u30c9\u304c\u52d5\u4f5c\u3057\u306a\u304f\u306a\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u3059\u304b\uff1f<\/h2>\n<p>Kotlin \u306f\u8a00\u8a9e\u30d0\u30fc\u30b8\u30e7\u30f3\u304c\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3055\u308c\u308b\u305f\u3073\u306b\u5909\u5316\u3057\u3066\u3044\u307e\u3059\u3002 \u65b0\u3057\u3044\u8a00\u8a9e\u6a5f\u80fd\u304c\u5c0e\u5165\u3055\u308c\u308b\u3068\u3001\u53e4\u3044\u30d0\u30b0\u304c\u4fee\u6b63\u3055\u308c\u307e\u3059\u3002 \u79c1\u305f\u3061\u306f\u30b3\u30fc\u30c9\u304c\u52d5\u4f5c\u3057\u306a\u304f\u306a\u308b\u5909\u66f4\u306e\u6570\u3084\u5f71\u97ff\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u306a\u304c\u3089\u3001<a href=\"https:\/\/kotlinlang.org\/docs\/kotlin-evolution.html\" target=\"_blank\" rel=\"noreferrer noopener\">Kotlin \u8a00\u8a9e\u306e\u9032\u5316\u30d7\u30ed\u30bb\u30b9<\/a>\u306b\u5f93\u3046\u3088\u3046\u306b\u5e38\u306b\u52aa\u3081\u3066\u3044\u307e\u3059\u3002 \u3053\u306e\u70b9\u306b\u95a2\u3057\u3066\u306f Kotlin 2.0 \u3082\u4f8b\u5916\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>Kotlin 2.0 \u306b\u306f\u610f\u8b58\u7684\u306b\u65b0\u3057\u3044\u6a5f\u80fd\u3092\u5c0e\u5165\u3057\u306a\u3044\u3088\u3046\u306b\u3057\u3066\u3044\u307e\u3059\u3002 Kotlin \u30b3\u30f3\u30d1\u30a4\u30e9\u30fc\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u306e\u66f8\u304d\u63db\u3048\u306f\u5927\u898f\u6a21\u306a\u5909\u66f4\u3067\u3042\u308a\u3001\u305d\u308c\u3060\u3051\u3067\u591a\u6570\u306e\u6539\u5584\u304c\u5c0e\u5165\u3055\u308c\u307e\u3059\u3002 \u65b0\u3057\u3044\u30c7\u30fc\u30bf\u30d5\u30ed\u30fc\u89e3\u6790\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306e\u7cbe\u5ea6\u304c\u5411\u4e0a\u3057\u3001\u30b9\u30de\u30fc\u30c8\u30ad\u30e3\u30b9\u30c8\u304c\u3053\u308c\u307e\u3067\u306e\u9650\u754c\u3092\u8d85\u3048\u3066\u6539\u5584\u3055\u308c\u3066\u3044\u308b\u306e\u306f\u305d\u306e\u4e00\u4f8b\u306b\u3059\u304e\u307e\u305b\u3093\u3002\u5177\u4f53\u7684\u306a\u4f8b\u306b\u3064\u3044\u3066\u306f\u3001<a href=\"https:\/\/youtrack.jetbrains.com\/issues?q=%23KT-4113%20%23KT-1982%20%23KT-7186%20%23KT-28806\" target=\"_blank\" rel=\"noreferrer noopener\">\u3053\u308c\u3089\u306e\u8ab2\u984c<\/a>\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002 \u3053\u308c\u306b\u3088\u308a\u3001\u53e4\u3044\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u306e Kotlin 1.9 \u3067\u30b3\u30f3\u30d1\u30a4\u30eb\u3055\u308c\u306a\u3044\u8d64\u3044\u30b3\u30fc\u30c9\u304c Kotlin 2.0 \u3067\u306f\u7dd1\u306e\u30b3\u30fc\u30c9\u306b\u5909\u308f\u308a\u307e\u3059\u3002\u53b3\u5bc6\u306b\u8a00\u3048\u3070\u3001\u3053\u308c\u306f\u65b0\u3057\u3044 Kotlin \u8a00\u8a9e\u6a5f\u80fd\u306e\u7279\u5fb4\u3067\u3059\u3002 \u3057\u304b\u3057\u3001\u3053\u308c\u306f\u5358\u306b\u65b0\u3057\u3044\u30b3\u30f3\u30d1\u30a4\u30e9\u30fc\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306b\u3088\u3063\u3066\u3082\u305f\u3089\u3055\u308c\u305f\u526f\u6b21\u7684\u52b9\u679c\u3067\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001\u305a\u3063\u3068\u672a\u89e3\u6c7a\u3060\u3063\u305f\u591a\u6570\u306e\u30d0\u30b0\u304c\u4fee\u6b63\u3055\u308c\u305f\u7d50\u679c\u3001\u5fc5\u7136\u7684\u306b\u3053\u308c\u3089\u306e\u4fee\u6b63\u306e\u4e00\u90e8\u306b\u3088\u3063\u3066\u4e0d\u6b63\u306a\u30b3\u30f3\u30d1\u30a4\u30e9\u30fc\u306e\u52d5\u4f5c\u306b\u5076\u767a\u7684\u306b\u4f9d\u5b58\u3057\u3066\u3044\u305f\u30b3\u30fc\u30c9\u304c\u52d5\u304b\u306a\u304f\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002 \u79c1\u305f\u3061\u306f K2 \u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u306e\u65b0\u65e7\u306e\u52d5\u4f5c\u306e\u5909\u5316\u306b\u3088\u308b\u5f71\u97ff\u306b\u3064\u3044\u3066\u306f\u614e\u91cd\u306b\u8abf\u67fb\u3092\u9032\u3081\u3066\u304a\u308a\u3001\u5909\u66f4\u306b\u3088\u3063\u3066\u304b\u306a\u308a\u306e\u6570\u306e Kotlin \u30e6\u30fc\u30b6\u30fc\u306b\u5f71\u97ff\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u5834\u5408\u306f\u3001\u610f\u306b\u53cd\u3057\u3066\u3067\u3082\u53ef\u80fd\u306a\u9650\u308a\u4ee5\u524d\u306e\u52d5\u4f5c\u3092\u518d\u73fe\u3067\u304d\u308b\u3088\u3046\u306b\u3055\u3089\u306b\u52aa\u3081\u3066\u3044\u304f\u4e88\u5b9a\u3067\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001Kotlin 1.9 \u304b\u3089 Kotlin 2.0 \u3078\u306e\u30b3\u30fc\u30c9\u3092\u79fb\u884c\u3059\u308b\u3053\u3068\u306b\u3088\u308b\u5f71\u97ff\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u3089\u308c\u308b\u3088\u3046\u306b\u52aa\u3081\u3066\u3044\u307e\u3059\u3002 Kotlin 2.0 \u306e\u5b89\u5b9a\u5316\u30d7\u30ed\u30bb\u30b9\u306b\u95a2\u3057\u3066\u6700\u65b0\u60c5\u5831\u3092\u304a\u4f1d\u3048\u3057\u3001\u30c6\u30b9\u30c8\u4e2d\u306b\u898b\u9003\u3057\u305f\u53ef\u80fd\u6027\u306e\u3042\u308b\u30ea\u30b0\u30ec\u30c3\u30b7\u30e7\u30f3\u3092\u3054\u5831\u544a\u3044\u305f\u3060\u3051\u308b\u3088\u3046\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067 Kotlin 2.0 \u3092\u4e8b\u524d\u306b\u8a66\u3059\u306e\u306b\u5341\u5206\u306a\u6642\u9593\u3092\u63d0\u4f9b\u3059\u308b\u4e88\u5b9a\u3067\u3059\u3002 \u73fe\u5728\u306f\u4eca\u5e74\u5f8c\u534a\u306b\u4e88\u5b9a\u3057\u3066\u3044\u308b\u30d9\u30fc\u30bf\u54c1\u8cea\u306e K2 \u30b3\u30f3\u30d1\u30a4\u30e9\u30fc\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u306e\u30ea\u30ea\u30fc\u30b9\u306b\u91cd\u70b9\u7684\u306b\u53d6\u308a\u7d44\u3093\u3067\u3044\u307e\u3059\u3002\u3053\u308c\u306b\u3064\u3044\u3066\u306f\u3001<a href=\"https:\/\/youtrack.jetbrains.com\/issue\/KT-52604\" target=\"_blank\" rel=\"noreferrer noopener\">\u3053\u3061\u3089\u306e\u30ed\u30fc\u30c9\u30de\u30c3\u30d7\u306e\u8ab2\u984c<\/a>\u3067\u8ffd\u8de1\u3067\u304d\u307e\u3059\u3002<\/p>\n<h2 class=\"wp-block-heading\">Kotlin 2.0 \u306e IDE \u30b5\u30dd\u30fc\u30c8\u306b\u3064\u3044\u3066&nbsp;<\/h2>\n<p>Kotlin IDE \u30d7\u30e9\u30b0\u30a4\u30f3\u306f\u3001IntelliJ IDEA \u3068 Android Studio \u306e\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u306b\u30d0\u30f3\u30c9\u30eb\u3055\u308c\u3066\u3044\u307e\u3059\u3002 \u3053\u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u306b\u306f\u30b3\u30fc\u30c9\u306e\u30bb\u30de\u30f3\u30c6\u30a3\u30c3\u30af\u89e3\u6790\u3092\u884c\u3048\u308b Kotlin \u30b3\u30f3\u30d1\u30a4\u30e9\u30fc\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u304c\u3001\u3053\u308c\u306f\u5b9f\u969b\u306b\u30b3\u30fc\u30c9\u3092\u30b3\u30f3\u30d1\u30a4\u30eb\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b Kotlin \u30b3\u30f3\u30d1\u30a4\u30e9\u30fc\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u5b9f\u969b\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u306f\u30d3\u30eb\u30c9\u30d5\u30a1\u30a4\u30eb\u5185\u306e\u8a2d\u5b9a\u3067\u6c7a\u307e\u308a\u307e\u3059\u3002 \u3064\u307e\u308a\u3001Kotlin \u8a00\u8a9e\u30d0\u30fc\u30b8\u30e7\u30f3 2.0 \u3067\u30b3\u30fc\u30c9\u3092\u30b3\u30f3\u30d1\u30a4\u30eb\u3059\u308b\u5834\u5408\u306f\u65b0\u3057\u3044\u30b3\u30f3\u30d1\u30a4\u30e9\u30fc\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u3092\u4f7f\u7528\u3059\u308b\u305f\u3081\u3001\u65b0\u3057\u3044\u30b3\u30f3\u30d1\u30a4\u30e9\u30fc\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u30e1\u30ea\u30c3\u30c8\u3092\u3059\u3079\u3066\u751f\u304b\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u304c\u3001 IDE \u306f\u53e4\u3044\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u3092\u4f7f\u3063\u3066\u30b3\u30fc\u30c9\u3092\u691c\u67fb\u3057\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u65b0\u3057\u3044\u30b3\u30f3\u30d1\u30a4\u30e9\u30fc\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u30e1\u30ea\u30c3\u30c8\u3092 IDE \u3067\u751f\u304b\u305b\u308b\u3088\u3046\u306b\u3059\u308b\u305f\u3081\u3001K2 \u30b3\u30f3\u30d1\u30a4\u30e9\u30fc\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u3092\u57fa\u790e\u306b\u69cb\u7bc9\u3055\u308c\u308b\u65b0\u3057\u3044\u30d0\u30fc\u30b8\u30e7\u30f3\u306e Kotlin IDE \u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u4f5c\u6210\u4e2d\u3067\u3059\u3002 \u73fe\u5728\u3001\u3053\u306e\u65b0\u3057\u3044 IDE \u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u30d1\u30d6\u30ea\u30c3\u30af\u30d7\u30ec\u30d3\u30e5\u30fc\u306b\u5411\u3051\u3066\u53d6\u308a\u7d44\u3093\u3067\u3044\u307e\u3059\u3002 \u6700\u65b0\u60c5\u5831\u306f\u3001<a href=\"https:\/\/youtrack.jetbrains.com\/issue\/KTIJ-23988\" target=\"_blank\" rel=\"noopener\">\u3053\u3061\u3089\u306e\u8ab2\u984c<\/a>\u3067\u8ffd\u8de1\u3067\u304d\u307e\u3059\u3002<\/p>\n<h2 class=\"wp-block-heading\">Kotlin 2.0 \u306e\u5f8c\u306e\u4e88\u5b9a<\/h2>\n<p>Kotlin 2.0 \u30b3\u30f3\u30d1\u30a4\u30e9\u30fc\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u306e\u65b0\u3057\u3044\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306b\u3088\u308a\u3001\u591a\u6570\u306e\u4fbf\u5229\u306a\u65b0\u6a5f\u80fd\u3092\u65b0\u305f\u306b\u5b9f\u88c5\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002 <a href=\"https:\/\/youtrack.jetbrains.com\/issue\/KT-10468\" target=\"_blank\" rel=\"noreferrer noopener\">KT-10468<\/a> \u306e\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u30ec\u30b7\u30fc\u30d0\u30fc\u306a\u3069\u3001\u3053\u306e\u3088\u3046\u306a\u6a5f\u80fd\u306e\u4e00\u90e8\u306f\u53e4\u3044\u30b3\u30f3\u30d1\u30a4\u30e9\u30fc\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u3067\u30d7\u30ec\u30d3\u30e5\u30fc\u3068\u3057\u3066\u63d0\u4f9b\u3055\u308c\u3066\u3044\u307e\u3059\u304c\u3001Kotlin 2.0 \u3067\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u30aa\u30f3\u306b\u306a\u308a\u307e\u305b\u3093\u3002 \u3053\u308c\u3089\u306f\u30d7\u30ec\u30d3\u30e5\u30fc\u6bb5\u968e\u306b\u7559\u307e\u308b\u4e88\u5b9a\u3067\u3059\u3002 \u65b0\u6a5f\u80fd\u306e\u5b89\u5b9a\u5316\u306f\u3001\u4eca\u5f8c\u306e Kotlin 2.x \u30ea\u30ea\u30fc\u30b9\u3067\u79c1\u305f\u3061\u306e\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u306b\u542b\u307e\u308c\u3066\u3044\u308b\u4ed6\u306e\u65b0\u6a5f\u80fd\u306e\u5b9f\u88c5\u3068\u5408\u308f\u305b\u3066\u5b9f\u65bd\u3055\u308c\u307e\u3059\u3002 \u3044\u3064\u3082\u306e\u3088\u3046\u306b\u3001<a title=\"https:\/\/kotlinlang.org\/docs\/roadmap.html\" href=\"https:\/\/kotlinlang.org\/docs\/roadmap.html\" target=\"_blank\" rel=\"noreferrer noopener\">Kotlin \u306e\u30ed\u30fc\u30c9\u30de\u30c3\u30d7<\/a>\u3092\u901a\u3058\u3066\u8a08\u753b\u306b\u95a2\u3059\u308b\u66f4\u65b0\u60c5\u5831\u3092\u5b9a\u671f\u7684\u306b\u304a\u77e5\u3089\u305b\u3059\u308b\u4e88\u5b9a\u3067\u3059\u3002<\/p>\n<p>Kotlin 3.0 \u306e\u30ea\u30ea\u30fc\u30b9\u306f\u3044\u3064\u9803\u306b\u306a\u308a\u307e\u3059\u304b\uff1f \u305d\u308c\u306f\u307e\u3060\u4e0d\u660e\u3067\u3059\u3002 \u5c06\u6765\u306e\u8a00\u8a9e\u306b\u5bfe\u3059\u308b\u591a\u304f\u306e\u5927\u898f\u6a21\u306a\u5909\u66f4\u306b\u3064\u3044\u3066\u306f\u3001\u524d\u56de\u306e <a href=\"https:\/\/blog.jetbrains.com\/kotlin\/2021\/12\/kotlin-features-survey-2021-results\/\" target=\"_blank\" rel=\"noreferrer noopener\">Kotlin \u6a5f\u80fd\u30a2\u30f3\u30b1\u30fc\u30c8<\/a>\u3067\u6700\u3082\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u591a\u304b\u3063\u305f\u4e8b\u9805\u3092\u4e2d\u5fc3\u306b\u66ab\u5b9a\u7684\u306a\u8a71\u3057\u5408\u3044\u306e\u5834\u3092\u6301\u3064\u3088\u3046\u306b\u3057\u3066\u3044\u307e\u3059\u3002 \u3053\u308c\u3089\u306e\u5909\u66f4\u306e\u4e00\u90e8\u304c\u3001Kotlin \u306e\u6b21\u671f\u30e1\u30b8\u30e3\u30fc\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u30ea\u30ea\u30fc\u30b9\u3059\u308b\u306b\u5024\u3059\u308b\u307b\u3069\u5927\u304d\u306a\u5909\u66f4\u3067\u3042\u308b\u3053\u3068\u3082\u78ba\u304b\u3067\u3059\u3002<\/p>\n<h2 class=\"wp-block-heading\">\u3054\u652f\u63f4\u3044\u305f\u3060\u304f\u306b\u306f<\/h2>\n<p>\u65b0\u3057\u3044\u30b3\u30f3\u30d1\u30a4\u30e9\u30fc\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u3092\u8a66\u3057\u3066\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u3092\u304a\u5bc4\u305b\u304f\u3060\u3055\u3044\uff01 Kotlin 1.8.20 \u304b\u3089\u306f\u901a\u5e38\u306e Kotlin \u8a00\u8a9e\u30d0\u30fc\u30b8\u30e7\u30f3\u30d5\u30e9\u30b0\u3092\u4f7f\u3063\u3066 Kotlin 2.0 \u8a00\u8a9e\u30d0\u30fc\u30b8\u30e7\u30f3\u306e\u30d7\u30ec\u30d3\u30e5\u30fc\u3092\u6709\u52b9\u306b\u3067\u304d\u307e\u3059\u3002<\/p>\n<p align=\"center\"><a class=\"ek-link jb-download-button\" title=\"Kotlin K2 \u30b3\u30f3\u30d1\u30a4\u30e9\u30fc\u3092\u6709\u52b9\u306b\u3059\u308b\" href=\"https:\/\/kotlinlang.org\/docs\/whatsnew-eap.html#new-kotlin-k2-compiler-updates\" target=\"_blank\" rel=\"noopener\">Kotlin K2 \u30b3\u30f3\u30d1\u30a4\u30e9\u30fc\u3092\u6709\u52b9\u306b\u3059\u308b<\/a><\/p>\n<h2 class=\"wp-block-heading\">\u8a73\u7d30\u60c5\u5831<\/h2>\n<ul>\n<li><a href=\"https:\/\/kotlinlang.org\/docs\/roadmap.html?_ga=2.62142766.385986069.1675687002-2069095727.1675084065&amp;_gl=1*kdn75d*_ga*MjA2OTA5NTcyNy4xNjc1MDg0MDY1*_ga_9J976DJZ68*MTY3NTc4ODEzMC4zNDUuMS4xNjc1NzkwNDE3LjU4LjAuMA..\" target=\"_blank\" rel=\"noreferrer noopener\">Kotlin \u306e\u30ed\u30fc\u30c9\u30de\u30c3\u30d7<\/a><\/li>\n<li><a href=\"https:\/\/blog.jetbrains.com\/kotlin\/2021\/10\/the-road-to-the-k2-compiler\/\" target=\"_blank\" rel=\"noreferrer noopener\">K2 \u30b3\u30f3\u30d1\u30a4\u30e9\u30fc\u3078\u306e\u9053<\/a><\/li>\n<li><a href=\"https:\/\/kotlinlang.org\/docs\/whatsnew-eap.html\" target=\"_blank\" rel=\"noreferrer noopener\">Kotlin 1.8.20-Beta \u306e\u65b0\u6a5f\u80fd<\/a><\/li>\n<\/ul>\n\n\n<p><strong>\u30aa\u30ea\u30b8\u30ca\u30eb\uff08\u82f1\u8a9e\uff09\u30d6\u30ed\u30b0\u6295\u7a3f\u8a18\u4e8b\u306e\u4f5c\u8005\uff1a<\/strong><\/p>\n\n\n    <div class=\"about-author \">\n        <div class=\"about-author__box\">\n            <div class=\"row\">\n                <div class=\"about-author__box-img\">\n                    <img decoding=\"async\" src=\"https:\/\/secure.gravatar.com\/avatar\/?s=200&#038;r=g\" width=\"200\" height=\"200\" alt=\"\" loading=\"lazy\"  class=\"avatar avatar-200 wp-user-avatar wp-user-avatar-200 photo 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