Explain and describe a release plan to plan the first sprint for a team building a software product to streamline employees' job tasks. The project was broken into three distinct phases during release planning. Sprint planning will further subdivide a release into multiple intervals (sprints) to get all the features required for a release completed within a specified timeframe. The deliverables are an Epic Roadmap with three epics and a Sprint Board for 100 "story points" worth of features in Jira. Describe the sprint retrospective summarizing the sprint planning and discuss a team's effort in estimating the backlog and the Jira environment.