id,node_id,number,title,user,state,locked,assignee,milestone,comments,created_at,updated_at,closed_at,author_association,active_lock_reason,draft,pull_request,body,reactions,performed_via_github_app,state_reason,repo,type
2188936276,I_kwDOAMm_X86CeIRU,8843,Get ready for pandas 3 copy-on-write,2448579,closed,0,,,2,2024-03-15T15:51:36Z,2024-03-18T16:00:14Z,2024-03-18T16:00:14Z,MEMBER,,,,"### What is your issue?

This line fails with `pd.set_options(""mode.copy_on_write"", True)`
https://github.com/pydata/xarray/blob/c9d3084e98d38a7a9488380789a8d0acfde3256f/xarray/tests/__init__.py#L329

We'll need to fix this before Pandas 3 is released in April: https://github.com/pydata/xarray/blob/c9d3084e98d38a7a9488380789a8d0acfde3256f/xarray/tests/__init__.py#L329

Here's a test
```python
def example():
    obj = Dataset()
    obj[""dim2""] = (""dim2"", 0.5 * np.arange(9))
    obj[""time""] = (""time"", pd.date_range(""2000-01-01"", periods=20)
    print({k: v.data.flags for k, v in obj.variables.items()})
    return obj

example()
pd.set_options(""mode.copy_on_write"", True)
example()
```","{""url"": ""https://api.github.com/repos/pydata/xarray/issues/8843/reactions"", ""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,completed,13221727,issue
2187682227,PR_kwDOAMm_X85ps6tB,8839,[skip-ci] Fix upstream-dev env,2448579,closed,0,,,0,2024-03-15T04:08:58Z,2024-03-15T04:37:59Z,2024-03-15T04:37:58Z,MEMBER,,0,pydata/xarray/pulls/8839,"<!-- Feel free to remove check-list items aren't relevant to your change -->

upstream-dev env is broken

- [x] Closes #8623
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2187646833,PR_kwDOAMm_X85psy9g,8837,Add dask-expr for windows envs,2448579,closed,0,,,0,2024-03-15T03:27:48Z,2024-03-15T04:06:05Z,2024-03-15T04:06:03Z,MEMBER,,0,pydata/xarray/pulls/8837,"<!-- Feel free to remove check-list items aren't relevant to your change -->

- [x] Closes #8830
- [ ] Tests added
- [ ] User visible changes (including notable bug fixes) are documented in `whats-new.rst`
- [ ] New functions/methods are listed in `api.rst`
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