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iTunes 11.3.1 (Mac/Windows 64bit) Podcastエピソード関連不具合の修正


Appleは、Mac/Windows (64bit OS環境)向けiTunesの最新版「iTunes 11.3.1」をリリースしました。ソフトウェア・アップデートから更新できます。

■iTunes 11.3.1 – 2014/08/07
iTunes 11.3.1 では、購読済みの Podcast で新しいエピソードがアップデートされない問題が修正され、Podcast エピソードのリストをブラウズ中に iTunes が応答しなくなる問題が解決されます。

iTunes 11.3 で含まれている iTunes Extras は、HD ムービー用に一新されています。iTunes Extras を使って舞台裏を紹介するビデオ、ショートフィルム、高解像度イメージギャラリー、監督の解説、シーンなどを見ることができます。コンテンツの魅力を引き出す iTunes Extras は、今のところソフトウェア・アップデート 6.2 がインストールされた Apple TV でも楽しむことができ、この秋には iOS 8 に組み込まれる予定です。

新しい iTunes Extras は、入手可能になった時点で以前に購入した HD ムービーに自動的に追加されます。追加料金は不要です。

アップル – サポートダウンロード

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Adobe Labsで「Flash Player 15 beta」「AIR 15 beta」提供開始

Adobe Systemsは8月6日(現地時間)、次期「Flash Player 15」および「AIR 15」の各ベータ版をAdobe Labsで公開しました。

– The ActiveX Flash Player in this release is not compatible with Windows® 8
– Flash Player for Windows® 8 is available as part of the generally available Windows® 8 update

■Build Changes (2014/08/06)
Runtime Versions
 Flash Player Desktop:

 AIR Runtime Desktop:
 AIR Runtime Android:
 AIR SDK & Compiler:

Flash Player 15 Features:
Thank you for your interest in the Flash Player 15 beta runtime for Windows and Mac OS. Please see our release notes for details on new features, recent fixes and known issues.

AIR 15 Features:
Thank you for your interest in the AIR 15 beta. This beta release provides access to the AIR 15 runtime and SDK for Windows, Mac OS, iOS, and Android. Please see our release notes for details on new features, recent fixes and known issues.

Adobe Labs – Updated Flash Player 15 and AIR 15 betas available on Adobe Labs
Adobe Labs – Flash Player 15 and AIR 15 Release Notes [PDF]

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Google、Mac向け「Chrome」64bit版を提供開始 (Dev channel/Canary build)

Google Chrome Canary

6月のWindows向け64bit版Chrome (Dev channel / Canary build) に続き、Mac向けにもDev channelおよびCanary buildでの64bit版配布が始まりました。

The Chromium Projects: Chrome Release Channels

  • Stable channel (安定版)
    This channel has gotten the full testing and blessing of the Chrome test team, and is the best bet to avoid crashes and other issues. It’s updated roughly every two-three weeks for minor releases, and every 6 weeks for major releases.
  • Beta channel (ベータ版)
    If you are interested in seeing what’s next, with minimal risk, Beta channel is the place to be. It’s updated every week roughly, with major updates coming every six weeks, more than a month before the Stable channel will get them.
  • Dev channel (開発版)
    Want to see what’s happening quickly, then you want the Dev channel. The Dev channel gets updated once or twice weekly, and it shows what we’re working on right now. There’s no lag between major versions, whatever code we’ve got, you will get. While this build does get tested, it is still subject to bugs, as we want people to see what’s new as soon as possible.
  • Canary build (テスト版)
    Canary builds are the bleeding edge. Released daily, this build has not been tested or used, it’s released as soon as it’s built. Because there’s no guarantee that it will even run in some cases, it uses it’s own profile and settings, and can be run side by side another Chrome channel. By default, it also reports crashes and usage statistics to Google (you can disable this on the download page).

Google Chrome 64bit (Canary)

■Google Chrome Canary 動作に関する注意
Canary はデベロッパーや開発段階の機能に興味があるユーザー向けに設計されており、動作が安定しない可能性があります。

Canary はほぼ毎日更新され、新機能が追加されます。

開発とテストを支援するため、Canary は Chrome 正式リリース版と同時に実行できるようになっています。

■64bit Chrome / Main advantages (参考:Windows向け64bit版公開時の情報)

  • Speed: 64-bit allows us to take advantage of the latest processor and compiler optimizations, a more modern instruction set, and a calling convention that allows more function parameters to be passed quickly by registers. As a result, speed is improved, especially in graphics and multimedia content, where we see an average 25% improvement in performance.
  • Security: With Chrome able to take advantage of the latest OS features such as High Entropy ASLR on Windows 8, security is improved on 64-bit platforms as well. Those extra bits also help us better defend against exploitation techniques such as JIT spraying, and improve the effectiveness of our existing security defense features like heap partitioning.
  • Stability: Finally, we’ve observed a marked increase in stability for 64-bit Chrome over 32-bit Chrome. In particular, crash rates for the the renderer process (i.e. web content process) are almost half that of 32-bit Chrome.

Chromium Blog – Try out the new 64-bit Windows Canary and Dev channels (2914/06/03)

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