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Joe SpadolaandGitHub
80c0452560
* optimize DateTime deserialization with epoch seconds arithmetic * add UTC-equivalent timezone fast path and cython dt64 loop optimization * move dt64 naive utc path into cython * fix DateTime cython bugs and expand test coverage * optimize string deserialization fast paths * don't use deprecated utcfromtimestamp * improve map performance * improve array performance * insert perf improvements for numeric fixed-width types * improve map write performance * fix type regression * use append * update changelog * comment cleanup * formatting * fix flaky math * use c-api datetime construction * need zoneinfo for new tests * fix two perf regressions in DT64 UTC-tz and list numeric inserts * update changelog * improve decimal reads * move perf notes to unreleased section * fix numpy memcpy fast path dispatch for non-float64 dtypes * fix century-divisible-by-400 leap year bug in epoch decoder * remove dead code * leap year regression tests, utcfromtimestamp sig narrowing * remove dead code * make error message consistent * hoist static lists out of hot loop * remove unnecessary year check * datetime64 utc read path improvement