Version 12.7.1 of CPLEX Optimization Studio is available for commercial users, faculty staff and students. Changes since version 12.6.3 include

• performance improvements
• automated Benders decomposition algorithm
• variability evaluation
• warnings about suspicious features in the model
• Interactive program in CP Optimizer

Additional information can be found in

• this blog post about version 12.7.0, along with release notes.
• this other post about a new option for CPLEX and CP Optimizer Interactive programs in 12.7.1, and the corresponding release notes.