Version 16.6.0

• Fix an issue where MPXJ writes files to a world-readable temporary directory while reading P3 PRX files, Suretrak STX files, or any other schedule which has been compressed as a zip file. There is a brief window while the schedule file is being read where a local user could access the schedule file contents from this temporary directory (with thanks to Arpit Jain).
• Performance improvement when reading certain MPP files (Contributed by Petr Janeček).
• Performance improvements and reduction in allocated memory when reading XER files.(Contributed by Petr Janeček).
• Ensure Cost Account Name and ID attributes are correctly written to XER files.
• Ignore calendar exceptions read from PMXML files which do not have a date.
• Improvements to PrimaveraScheduler to ensure better alignment with P6.
• Improvements Free Slack calculation for Primavera schedules to ensure better alignment with P6.
• Improve timephased data generation for tasks marked as milestones.
• Updated to Jackson 2.22.1.