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Update IO support matrix after Beam 2.76.0 release - #39982

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Update IO support matrix after Beam 2.76.0 release#39982
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@Abacn Abacn commented Sep 2, 2026

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Fix Yamldoc empty for certain transforms due to expansion service is not present

Simplify third-party IO connector to use a single column for Language, since all of them are only have one language support.

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* Fix CHANGES.md wrong version

* Fix Yamldoc empty for certain transforms due to expansion service is not present
Use pipeline option `--updateCompatibilityVersion=2.75.0` (or any older version) to keep the old behavior ([#39344](https://github.com/apache/beam/issues/39344)).
* `DoFn.process` returning a `str`, `bytes`, or `dict` (instead of an iterable wrapping one) now raises a `TypeError` rather than silently iterating per-character/byte/key (Python) ([#18712](https://github.com/apache/beam/issues/18712)).
* (Java) Added `DRAINING` and `DRAINED` states to `PipelineResult`, including runner state mappings and Dataflow update handling ([#39020](https://github.com/apache/beam/issues/39020)).
* (Python) Typehints of dataclass fields are honored during type inferences. To restore the behavior of fallback-to-any,

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This was duplicated from 2.75.0

* (Python) Added `Watch`, a transform that polls a growing set of outputs for each input element, deduplicates outputs across poll rounds, and stops per a user-supplied termination condition
([#21521](https://github.com/apache/beam/issues/21521)).
* (Python) Added support to analyze core dumps created after python worker segmentation faults with `pystack` (or `gdb` if installed) using the `--profiler_agent=coredump` pipeline option. ([#39484](https://github.com/apache/beam/issues/39484)).
* (Python) Added `Sample.Any`, the Python equivalent of Java's `Sample.any`, which returns up to n arbitrary elements from a PCollection ([#18552](https://github.com/apache/beam/issues/18552)).

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This actually goes to 2.77.0

@Abacn
Abacn marked this pull request as ready for review September 2, 2026 19:56
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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 55.06%. Comparing base (1040879) to head (e18c36c).
⚠️ Report is 5 commits behind head on master.

Additional details and impacted files
@@             Coverage Diff              @@
##             master   #39982      +/-   ##
============================================
+ Coverage     55.05%   55.06%   +0.01%     
  Complexity     1722     1722              
============================================
  Files          1075     1075              
  Lines        171588   171589       +1     
  Branches       1262     1262              
============================================
+ Hits          94473    94492      +19     
+ Misses        74844    74826      -18     
  Partials       2271     2271              
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python 79.85% <ø> (+0.02%) ⬆️

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Assigning reviewers:

R: @jrmccluskey for label python.
R: @shunping for label website.

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