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Sleipnir 4 for Mac (4.5.4) Released! (including security update)

category : for Mac, Sleipnir 4

Sleipnir for Mac

Hello, this is Moto-oka.

We are pleased to announce that Sleipnir 4 for Mac (4.5.4), both Black and Blue editions have been released today!

This update comes with some fixed bugs, including a security issue. For your safe web-browsing, please update as soon as possible.

Improvements and Modifications

  • [security issue] Malicious websites could modify address indicator to arbitrary ones. This vulnerability is now fixed. (CVE-2016-7831) (JVN#28151745)
  • Fixed an issue that Japanese version was running as an English version on macOS Sierra.
  • Fixed an issue that the app sometimes failed to launch for the first time on macOS Sierra.

Supported OS versions

As we want to deliver the best Sleipnir for the latest Mac, the next release will run on OS X Mavericks (10.9) or later, and future releases will do on OS X Yosemite (10.10) or later. We hope the users to upgrade their OS shortly and keep enjoying the cutting-edge browser, Sleipnir!


We will keep making improvements based on your feedback. Thank you for your continuous support of Sleipnir for Mac!



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