The software development lifecycle (SDLC) in January often involves fresh starts and new strategies, but the shift from "shifting left" to testing earlier in the SDLC versus "shifting right" to testing in production is a nuanced trend. While shifting left remains a best practice, testing in production has gained popularity as an emerging trend, especially among companies with high traffic and stable consumer bases. The context of each organization, including industry, release frequency, and risk tolerance, plays a crucial role in determining the optimal strategy, with some teams adopting continuous testing loops and others prioritizing security and accessibility testing earlier in the SDLC.