This update addresses the following vulnerabilities:

• CVE-2017-2350, CVE-2017-2354, CVE-2017-2355, CVE-2017-2356, CVE-2017-2362, CVE-2017-2363, CVE-2017-2364, CVE-2017-2365, CVE-2017-2366, CVE-2017-2369, CVE-2017-2371, CVE-2017-2373

Additional fixes:

• Make accelerating compositing mode on-demand again. By default it will only be used for websites that require it, saving a lot of memory on websites that don’t need it.
• Release unused UpdateAtlas and reduce the tile coverage on memory pressure.
• The media backend now stores preloaded media in /var/tmp instead of user cache dir.
• Make inspector work again when accelerated compositing support is disabled.
• Fix a deadlock when the media player is destroyed.
• Fix network process crashes when loading custom URI schemes.
• Fix overlay scrollbars that are over a subframe.
• Fix a crash in GraphicsContext3D::drawArrays when using OpenGL 3.2 core profile.
• Fix BadDamage X errors happening when resizing the WebView.
• Fix several crashes and rendering issues.