Update README.md

jin-s13 · web-flow · commit d74033ff1635 · 2023-10-19T15:56:43.000+08:00
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 # Extended COCO API (xtcocotools)
 
 ## News
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+[2023.10.19] Release xtcocotools v1.14.3. Support python3.7~3.11 on Linux, mac and windows systems.
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 [2023.09.01] Release xtcocotools v1.14. Solve Cython3.x compatability.
 
 [2022.12.27] Release xtcocotools v1.13. Fix int overflow & solve deprecation in numpy (replace np.float with np.float64).
