What replaced ESL?

Could you elaborate on the context in which "ESL" was replaced? ESL, often referring to English as a Second Language, is a widely recognized term in education. However, if we're discussing a specific industry or field where "ESL" was a term or system that has been superseded, I'd be curious to know what that field is and what has taken its place. For instance, if we're talking about language learning methodologies, perhaps technology-driven platforms or more interactive teaching methods have replaced traditional ESL approaches. Or, if we're in the realm of finance or cryptocurrency, "ESL" might not be a commonly used acronym, and its replacement could be something entirely different, related to a new product, service, or regulation. Could you provide more details on the specific context and what the replacement for "ESL" entails? This would help me craft a more accurate and relevant question.