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February 2022 Update
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Core Library
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* Add support for multiple sources to LocalMergeNode plan node.
* Optimize aggregation over partially clustered input.

Presto Functions
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* Add :func:`bit_count`, :func:`sha256`, :func:`date_diff` Presto function.
* Add :func:`checksum` aggregate Presto function.
* Add support for casting from BIGINT and VARCHAR to JSON.

Credits
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Alex Hornby, Andrea Aquino, Behnam Robatmili, Bowei Xu, Chad Austin, Chao Chen,
Deepak Majeti, Ge Gao, Genevieve Helsel, Harvey Hunt, Huameng Jiang, Jimmy Lu,
Karteek Murthy Samba Murthy, Kevin Wilfong, Krishna Pai, Laith Sakka, Marc Fisher,
Masha Basmanova, Michael Shang, Orri Erling, Pedro Eugenio Rocha Pedreira,
Sagar Mittal, Satya Valluri, Sergey Pershin, Veera Veeraprakash, Wei He,Wei Zheng,
Wenlei Xie, Xavier Deguillard, Yang Ce, Zhenyuan Zhao, Zichun Zhang, jijufb.