# Pangeo Showcase: "Zarr Python 3 and beyond" (March 05, 2025)

**URL:** <https://discourse.pangeo.io/t/pangeo-showcase-zarr-python-3-and-beyond-march-05-2025/4918>\
**Category:** Pangeo Showcase\
**Created:** [February 27, 2025, 5:20pm UTC](https://discourse.pangeo.io/t/pangeo-showcase-zarr-python-3-and-beyond-march-05-2025/4918 "2025-02-27T17:20:04Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![maxrjones](https://yyz2.discourse-cdn.com/flex030/user_avatar/discourse.pangeo.io/maxrjones/32/3190_2.png) [@maxrjones](https://discourse.pangeo.io/u/maxrjones)\
**Post date:** [February 27, 2025, 5:20pm UTC](https://discourse.pangeo.io/t/pangeo-showcase-zarr-python-3-and-beyond-march-05-2025/4918/1 "2025-02-27T17:20:04Z")

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[![](https://canada1.discourse-cdn.com/flex030/uploads/pangeo/original/2X/3/30d2b8cd8cc7f2f1eafa6dea03a070a80e14a33e.jpeg "Zarr Python 3 and beyond") ](https://www.youtube.com/watch?v=AxFKecZ7Dag)

**Title** : “Zarr Python 3 and beyond”  
**Invited Speaker** : Joe Hamman (ORCID: [0000-0001-7479-8439](https://orcid.org/0000-0001-7479-8439))  
**When:** Wednesday, March 05, 2025 at 12 PM EST  
**Where:** [Launch Meeting - Zoom](https://numfocus-org.zoom.us/j/83234473026?pwd=mgM3uAuru1AE1aFPlRjW2dAAAyo8IY.1)  
**Abstract:**

After more than a year of development and including contributions from more than 30 contributors, Zarr-Python 3.0 was released in January. This version brings full support for the Zarr v3 specification, including the powerful new chunk-sharding extension, major performance improvements through asynchronous I/O and threaded parallelism, and a modernized, extensible codebase. In this showcase, we’ll dive into many of the improvements included in the 3.0 release and discuss how they can be used to help accelerate data analytics and machine learning workflows in the cloud. We’ll also brief overview of the post 3.0 roadmap for the Zarr-Python project.

Agenda:

- ~15 minutes - Showcase presentation
- 10 - 30 minutes - Discussion
- 15 - 30 minutes - Community check-in

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**Author:** ![NickHodgskin](https://yyz2.discourse-cdn.com/flex030/user_avatar/discourse.pangeo.io/nickhodgskin/32/3232_2.png) [@NickHodgskin](https://discourse.pangeo.io/u/NickHodgskin)\
**Post date:** [February 27, 2025, 6:54pm UTC](https://discourse.pangeo.io/t/pangeo-showcase-zarr-python-3-and-beyond-march-05-2025/4918/2 "2025-02-27T18:54:35Z")

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@maxrjones the “When” field is a date in february, which mismatches the title - could you update? Would be interested to attend 🙂

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**Author:** ![maxrjones](https://yyz2.discourse-cdn.com/flex030/user_avatar/discourse.pangeo.io/maxrjones/32/3190_2.png) [@maxrjones](https://discourse.pangeo.io/u/maxrjones)\
**Post date:** [February 27, 2025, 11:35pm UTC](https://discourse.pangeo.io/t/pangeo-showcase-zarr-python-3-and-beyond-march-05-2025/4918/3 "2025-02-27T23:35:07Z")

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Thanks for pointing this out - looks like someone already fixed it. It’s happening next Wednesday (which is in March 🙂 ), hope to see you there!

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**Author:** ![maxrjones](https://yyz2.discourse-cdn.com/flex030/user_avatar/discourse.pangeo.io/maxrjones/32/3190_2.png) [@maxrjones](https://discourse.pangeo.io/u/maxrjones)\
**Post date:** [March 5, 2025, 2:32pm UTC](https://discourse.pangeo.io/t/pangeo-showcase-zarr-python-3-and-beyond-march-05-2025/4918/4 "2025-03-05T14:32:18Z")

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Happening today! See the [calendar invite](https://www.pangeo.io/calendar) and join via the [zoom link](https://numfocus-org.zoom.us/j/83234473026?pwd=mgM3uAuru1AE1aFPlRjW2dAAAyo8IY.1) 🚀