United States – October 12, 2026 -- Sylabs will end-of-life SingularityPRO, Singularity Enterprise and SingularityCE on October 25, 2026, the date its engineering work on the SingularityCE project and Singularity ecosystem stops. CIQ, which backs the competing Apptainer project, says it is already moving to absorb Singularity's user base.