Version 1.5

Improvements:

• Multilevel partitioning;
• Cross-partition updates (should be enabled with pg_pathman.enable_partitionrouter option), update triggers were removed;
• Support for PostgreSQL 11;
• Rewritten from scratch cache subsystem;
• Stability-related fixes.

Other changes:

• get_pathman_lib_version() was removed, use pathman_version instead;
• split_range_partition was optimized;
• merge_range_partitions gets variable numbers of arguments instead of an array.