This document offers a summary of key findings and learnings from a preliminary evaluation of the Quality Support Program (QSP) by Australian Children's Education and Care Quality Authority (ACECQA). The QSP is an initiative of the NSW Department of Education Early Childhood Education Directorate (NSW DoE) involving the delivery by ACECQA of free tailored professional development and support to approved providers and service leaders of eligible long day care and family day care services across NSW. From the commencement of the QSP in March 2018 until May 2019 (the period covered by the preliminary evaluation), three 16-week rounds of support were provided to 142 eligible services. The main objective of the QSP is to improve the quality of participating services to the level of 'Meeting National Quality Standard (NQS)' or higher, and to improve participants' knowledge of and confidence in the 2018 NQS. Participants benefitted from resources, advice and one-on-one support to help improve on practice and prepare for their next quality assessment and rating (A&R). The structure of each round of the QSP consisted of an introductory workshop, face-to-face service visits, support phone calls and emails, eLearning training, and bespoke resources.