What are my options for renewing my ED visa in Thailand before it expires?

The individual is inquiring about renewing their ED visa, which is set to expire in June. They have been informed that a border run may be necessary to apply for another ED visa, specifically for Muay Thai. Commentary reveals that while a border run is an option, if changing schools or programs, they need to leave the country and return with a new stamp. Current immigration advice confirms that the individual can leave and re-apply for the ED visa upon their return without needing to cancel their existing visa.