- Added sub-directory support: INI files in sub-directories are loaded recursively (up to 16 levels) and namespaced by the directory name ('sub/x.ini' as 'sub.x')
- Added hot-reload tracking of sub-directories
- Optimized config storage with compact block (two-phase compaction)
- Added PHP PIE support
- A name conflict between an INI file and a same-named directory now raises a warning: the directory wins and the file is skipped
- Fixed memory leaks when a dot-notation key overrides a scalar value
- Fixed memory leak on foreach-by-ref over compact block tables with PHP 7.0
- Changed Yaconf::__debug_info() to report the stored value's address