Quantum mechanics remains a foundational theory in physics, and there is ongoing research and discussion surrounding its interpretation. While string theory is not an interpretation of quantum mechanics but rather a proposed theory of quantum gravity, there are various interpretations of quantum mechanics that have been explored. Some of these interpretations have gained more popularity than others, but it's important to note that no single interpretation has achieved consensus among physicists.
Some of the well-known interpretations of quantum mechanics include the Copenhagen interpretation, the many-worlds interpretation, the pilot-wave theory (also known as de Broglie-Bohm theory), and the consistent histories interpretation, among others. Each interpretation offers a different perspective on the nature of quantum phenomena and the role of observation.
It's worth noting that interpretations of quantum mechanics are more philosophical in nature and aim to provide a conceptual framework rather than making specific experimental predictions. New interpretations or variations of existing interpretations may continue to emerge as physicists explore different avenues for understanding quantum mechanics.
However, it's important to consult more recent sources and the work of physicists to get the most up-to-date information on the current state of research in this field.