• [fix] Pin workflow-installed flit and flit_core to the same 3.12.0 release so PyPI publish jobs build with a compatible toolchain and avoid the failed v7.1.9 release path.
• [enh] Restore the optimized exact bootstrap route for cftime day-of-year percentile count indices after integrating the compiled order-stat count path into the public routing.
• [fix] Preserve exact leap-year behavior for non-reference cftime study years by reusing the prepared 366-day nominal threshold field where needed.
• [doc] Add real-data Kraken validation and exact-count redesign archive notes for the cftime bootstrap workflow.