Opera 12.15 is a recommended upgrade offering security and stability enhancements. It provides:
-fixed an issue where the search bar's default engine could be overridden by third-party apps;
-fixed a moderately severe issue;
-added safeguards against attacks on the RC4 encryption protocol;
-fixed an issue where cookies could be set for a top-level domain.
- Submitted by Stefan Lijewski (lijews)