Opera Software has just released Opera 10.51 for Windows, which is a recommended security and stability update. As suggested by its version number, the changes are mostly under the hood and there are no new features.
This build addresses a couple of highly critical security issues, including the malformed HTTP Content-Length header issue, which we had discussed earlier;. The other security issue is related to XSLT (XSL Transformations). Due to a bug, it was possible to use certain XSLT constructs to retrieve random contents of unrelated documents (including sensitive data from previously visited websites).