A full list of changes can be found in the Opera Changelog, while the update affects Windows, Mac, and Linux users.

Opera 10.61 can be downloaded from the Opera website.

Three of the security issues are rated as of high importance, one as medium, and one as low.

The update is available for Windows, Mac, Linux and Chrome Frame and will be pushed out to users automatically over the coming days.

New users can download Chrome from the Google Chrome website.

A total of 14 security vulnerabilities have been patched, 4 of which are rated as moderate, 2 high, and 8 are of critical severity. A full list of changes can be read in the release notes.

Current Firefox 3.6.x users will receive the update  in the coming days,  while new users can download Firefox from the Firefox website.

Full details on these security issues can be read on the Google Chrome Releases blog.

Current Chrome users will receive the update automatically in the coming days, or alternatively new users can download the browser from the Google Chrome website.

As a result of this fix, the integrated Flash player is now enabled by default.

Full details on the security vulnerabilities can be read in the Google Chrome Releases blog.

The update will be pushed out to current Stable Channel Chrome users, or new users can download the browser directly from the Google Chrome website.

The upgrade is highly recommended for all Opera 10.5x users, but the flaws have already been fixed in Opera 10.6 Beta 1, so early adopters are safe.

The nature of most of these security flaws is mostly unknown, with details to be disclosed at a later date. A rather censored changelog is available.

Opera 10.53 users will automatically be upgrading in the coming days, while other users can download Opera from the Opera website.

Available for many versions of Windows, starting at Windows 2000, and covering all versions of Internet Explorer from IE5.01, the update is highly recommended for all Windows users.

The update fixes six security vulnerabilities, with the most serious allowing remote code execution if a user visits an infected website.

Windows users with Automatic Updates turned on will receive the update in the coming days.

Nine of these are rated as a high threat level, while the remaining two are only rated as medium. More details on these threats can be read in the Google Chrome Releases blog.

The update is available for all Windows, Mac, and Linux users, and it will be pushed out automatically to these users as usual. New users can download Chrome from the Google Chrome website.

The release marks the first stable version of the Chrome browser for the Mac and Linux platforms.

The release also closes 6 security holes, 2 of which were rated as high, and 4 rated as medium. The new browser also fixes several stability bugs, which would cause the browser to crash.

New features found in Chrome 5 for exsisting stable users include:

• Better HTML5 support
• Geolocation API
• App cache
• Drag and Drop for files

Adobe Flash Player is not bundled into the browser as expected, but Google promises it will be back once Adobe Flash Player 10.1 is released.

The latest release will be pushed out to existing Chrome users, while new users can take the plunge and download the browser from the Chrome website.

The update includes two bug fixes, one of which solves a bug that causes slow JavaScript performance.

Three security holes have also been closed, all of which were rated as high.

A more detailed description of each of these issues can be found in the change log.

Windows users will automatically receive the update, while new users can download Chrome from the Google Chrome website.