- Clean‑up and refactorings: removed unused methods/constants, renamed README, updated .NET options hierarchy, added toString to DefaultElementLocator, optimized JsonToBeanConverter, and increased log buffer size.
- New features and test improvements: ability to switch to the top window without restart, return non‑boolean capabilities, close‑connection support for HttpClient, enhanced httpOnly cookie handling, and added overlapping‑element tests.
- Bug fixes across languages: fixed compilation errors in Java tests, scrolling issues in Firefox overflow elements, Python error‑message handling, default browser selection in dev mode, and refined sauce error handling.
Selenium 2.51.0
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Added a new transport layer for generated BiDi modules and improved BiDi schema fidelity, including extensible types and validation of primitives.