Substitute Senate Bill No. 6 introduces several significant measures aimed at enhancing support for children and families in Connecticut. Effective July 1, 2026, the bill establishes a refundable state child tax credit of $600 per dependent child for eligible taxpayers, with a gradual phase-out based on income thresholds. Additionally, it mandates that eligible school districts provide free breakfasts and lunches to all students for the fiscal year ending June 30, 2027, supported by grants from the State Department of Education. The bill also imposes restrictions on individuals convicted of certain crimes against children, prohibiting them from residing with minor children unless they are the biological or adoptive parents, and requires the Commissioner of Correction to notify the Department of Children and Families (DCF) upon their release. Moreover, the bill updates existing law by renaming the "Preschool through Twenty and Workforce Information Network" to DataLink Connecticut, replacing the previous P20 WIN framework. It establishes a new data-sharing initiative involving various state agencies to improve workforce development and educational outcomes. The bill mandates that regional workforce development boards and higher education institutions submit data to DataLinkCT, with the Chief Workforce Officer responsible for setting data submission standards and conducting annual assessments. Additionally, local education boards are required to notify the education commissioner when a child is withdrawn from public school, raising potential privacy concerns under federal law. Overall, the bill aims to enhance protections for children while improving data collaboration among state agencies.