Continued fine-tuning of large language models allows for sequential fine-tuning by specifying the --from-checkpoint parameter, enabling builds upon previously trained models. This process is crucial in adapting models to new tasks, domains, or languages while preserving their existing capabilities. Continued fine-tuning offers a resource-efficient way to adapt models to changing requirements without sacrificing previous learned skills. It encompasses various approaches, including fine-tuning for different tasks, instruction tuning, model refinement, and alignment. The key challenge is catastrophic forgetting, which can be mitigated by using similar task datasets across languages. Continued fine-tuning is valuable in scenarios where a model needs to adapt to new data or tasks, incorporate new knowledge incrementally, or align with human preferences. It requires careful consideration of dataset similarity, learning rate, and performance metrics. The approach has promising applications in enhancing multilingual capabilities and improving task-specific performance.