"It works on staging" is one of the most dangerous phrases in software. The timeout is 5 seconds in dev, 30 seconds in prod. The cache TTL is different. The database pool size is different. The feature flag is on in staging but off in prod. Config drift makes every deployment a gamble.
Strategies for updating LLMs with new data including knowledge cutoff solutions, fine-tuning approaches, elastic weight consolidation, experience replay, and RAG alternatives.