Deepseek has officially released its updated V4-Pro product after a testing phase. The company has also made its agent software, Harness, available under an open-source license. However, users will be required to pay higher fees for API access, with particular increases affecting workflows that rely on repeated file access. The changes aim to support ongoing development and maintenance of the product line. This shift in pricing and open-sourcing of software may impact how users integrate Deepseek into their workflows.