1 Introduction  
2 HSC Data and Pipeline  
2.1 Improvements in PSF Modeling  
2.2 Improvements to the Warping Kernel  
2.3 Background Subtraction  
2.4 Bright Star Mask  
2.5 Observing Strategy  
2.6 Full Depth and Full Color Cut  
3 Shear Catalog  
3.1 Shear Estimation  
3.2 Image Simulations  
3.3 Weak Lensing Galaxy Sample  
3.4 Optimal Weighting  
3.5 Calibration  
3.6 Ensemble Calibration Uncertainties  
3.7 Selection Bias  
3.8 Redshift-Dependent Blending  
3.9 Basic Characterization of the Catalog  
3.10 Blinding  
4 Requirements on Control of Systematic Uncertainties  
4.1 Requirement from Cosmic Shear  
4.2 Multiplicative Bias Residuals  
4.3 PSF Model Size Errors  
4.4 Additive Bias Residuals  
4.5 PSF Model Shape Errors  
5 PSF Model Tests  
5.1 Star Sample  
5.2 PSF Region Cut  
5.3 PSF Model Size  
5.4 PSF Model Shape  
6 Null Tests  
6.1 Mean Shear Values  
6.2 Stacked Shear Signals  
6.3 Mass Maps  
6.4 Star-Galaxy Cross-Correlation  
7 Summary and Outlook  
7.1 Future Improvements  
7.2 Outlook for Three-Year HSC Weak Lensing Science