Software Maintenance · Versions URL: https://knowledge.ivjn.us/en/concepts/software-maintenance/versions.html Software maintenance is the whole of the activity by which software continues to evolve after it is in operation, in response to defects, changes in the operating environment, and new requirements. - rev 2 (2026-11-02) : 当前版本 https://knowledge.ivjn.us/en/concepts/software-maintenance/at/2.html Page 1 / 1, 1 total