Appleが日本など複数の地域でApple Intelligenceをサポートし複数の不具合や複数の脆弱性を修正した「macOS 15.4 Sequoia (24E248)」をリリースしています。詳細は以下から。
Appleは現地時間2025年03月31日、今年02月からBeta版を公開し開発を進めていたmacOS 15.4を「macOS 15.4 Sequoia Build 24E248」として正式にリリースしたと発表しています。
This update introduces the ability to create Memory movies in Photos with Apple Intelligence, a new Sketch Style option in Image Playground, Mail Categorization, and enhancements to better organize and filter your library in Photos. This release also includes other features, bug fixes, and security updates for your Mac.
リリースノートより抜粋
macOS 15.4 Sequoiaでは、既に発表されていた通りApple M1チップ以降を搭載したMacで、AppleのパーソナルAI機能「Apple Intelligence」が日本語、フランス語、ドイツ語、イタリア語、ポルトガル語 (ブラジル)、スペイン語、韓国語、中国語 (簡体字)など多くの言語と地域で利用できるようになっています。

Apple Intelligenceの設定画面
また、macOS 15.4やiOS 18.4では絵文字にEmojis v16.0で制定された、目の下に入った顔や指紋、葉のない木、根菜、ハープ、シャベル、スプラッター、Flag:Sarkの8つの新しい絵文字が追加され、ポッドキャスト用のウィジェットの追加、ホームアプリでのMatter対応のロボット掃除機のサポートが行われています。
Apple has officially introduced eight new emoji designs in iOS 18.4, including a paint splatter, a harp, and a face with bags under its eyes.https://t.co/PINysGBd74 pic.twitter.com/0s3wyOUt7W
— Emojipedia (@Emojipedia) March 31, 2025
一方、不具合修正としては一部の外部ディスプレイでNight Shiftがオフにならない不具合、ミュージックアプリでVoiceOver要素が誤った要素を読み上げる、点字ディスプレイで左右の矢印キー移動時に誤った行を表示する問題が修正され、256GB/512GBユニファイドメモリのM3 Ultraチップを搭載したMac Studio (2025)でのGPUメモリ割り当ての増加、Final Cut Proのトランスコード処理性能が向上し、

About the security content of macOS Sequoia 15.4より
同時に公開されたセキュリティコンテンツによると、macOS 15.4ではCVEベースで131件の脆弱性が修正されているので、ユーザーの方は時間を見つけてアップデートすることをオススメします。
macOS 15.4のリリースノート
This update introduces the ability to create Memory movies in Photos with Apple Intelligence, a new Sketch Style option in Image Playground, Mail Categorization, and enhancements to better organize and filter your library in Photos. This release also includes other features, bug fixes, and security updates for your Mac.
- Apple Intelligence (Mac with M1 and later)
- Memory movies can be created by describing the story you want to see in Photos
- Sketch is now available as a style option in Image Playground, so you can create gorgeous drawings
- Apple Intelligence features support 8 additional languages and 2 additional English locales, including English (India, Singapore), French (France, Canada), German (Germany), Italian (Italy), Japanese (Japan), Korean (South Korea), Portuguese (Brazil), Simplified Chinese, and Spanish (Spain, Latin America, US)
- Mail
- Mail Categorization sorts your messages to help you prioritize the most important messages
- Photos
- New filter to show or hide items not contained in an album in the Library view
- Retouch brush is included in the Clean Up tool
- Reorder items in the Media Types and Utilities collections
- Consistent filtering options in all collections, including the ability to sort by oldest or newest first
- Option to sort albums by Date Modified
- Disable “Recently Viewed” and “Recently Shared” collections from the View menu
This update also includes the following enhancements and g fixes:☄
- 8 new emoji including objects, plants, and a smiley face are now available in the emoji keyboard
- New widgets for Podcasts including a Followed Shows widget to track your favorite shows and a Library widget to get to your most used sections, such as Latest Episodes, Saved, and Downloaded
- Matter-compatible robot vacuum cleaners can be controlled in the Home app as well as be added to scenes and automations
- Resolves an issue where certain external displays might not be able to turn off Night Shift
- Increases the default maximum memory allocation limit available to the GPU on Mac Studio (2025) with M3 Ultra with 256GB or 512GB of unified memory
- Improves transcoding performance in Final Cut Pro on Mac Studio (2025) with M3 Ultra
- Screen Time App Limits persist even after a child uninstalls and reinstalls an app
- Fixes an issue where VoiceOver navigates elements in incorrect order in Music
- Addresses an issue where a Braille display may show an incorrect line when navigating lines with left or right arrows
- Apple security releases – Apple
- What’s new in the updates for macOS Sequoia – Apple Support
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