This specific build focused on improving the day-to-day reliability of the software. According to the official version history , several notable issues were addressed:
Modify tracking, leading, alignment, and font families directly without opening the Character panel. Adobe Photoshop CC 2017.1.1 -20170425.r.252- Pl...
Finding the specific help you need for depends on whether you are looking for technical troubleshooting for that specific build or general guidance on using its features. This specific build focused on improving the day-to-day