The evidence for applications having a half-life continues to spread across domains. The first published data covered IBM mainframe applications up to 1992 (half-life of at least 5-years), and was mostly ignored. Then, the data collected by Killed by Google up to 2018, showed a half-life of at least 3-years for Google apps. More recently, the data collected by Killed by Microsoft up to 2025, showed a half-life of at least 7-years for Microsoft apps (perhaps reflecting the maturity of the c...
