Key features of the CLC in 2025 include a strong emphasis on Marxist theory and Chinese politics, with especially large A and D classes. Traditional Chinese Medicine is organized under its own major subclass (R71). AI and quantum computing fall under TP, which covers automation and computer technology. The system has rapidly expanding subclasses covering the digital economy, blockchain, AI ethics, carbon neutrality, longevity medicine, and the space industry. New subclasses added over the past decade include F9 for the digital economy and cryptocurrency, J59 for digital art and generative AI art, R95 for longevity and anti-aging medicine, TP3911 for large language models and multimodal AI, V48 for lunar and Mars exploration technology, and X7 for climate change and geoengineering. This is the classification system currently used on book spines in university and public libraries throughout China.