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[v2] Enable CRT S3 transfer client by default on 5th gen instance families - #10706

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aemous merged 7 commits into
v2from
crt-rollout-4
Oct 1, 2026
Merged

aemous merged 7 commits into
v2from
crt-rollout-4

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@aemous

@aemous aemous commented Sep 29, 2026 •

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Issue #, if available:

#10676

Description of changes:

  • Enable the CRT S3 transfer client by default on the following EC2 instance families - c5n, c5ad, c5a, c5d, c5, m5zn, m5dn, m5n, m5ad, m5a, m5d, m5, r5dn, r5n, r5ad, r5a, r5d, and r5.
  • Updates existing S3 tests so that they pin the classic Python transfer client. This preserves previous behavior / intent of these tests that were already expecting the Python client to be resolved.
  • Removed tests that depended on historical behavior for auto-resolution, since we will be removing auto-resolution anyways.

Description of tests:

  • Successfully ran all tests and CI (see GitHub Actions).

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.

@aemous
aemous requested a review from a team as a code owner September 29, 2026 22:22
@aemous
aemous marked this pull request as draft September 29, 2026 22:23
@aemous
aemous marked this pull request as ready for review September 30, 2026 19:17
@aemous
aemous requested a review from hssyoo September 30, 2026 19:17

@luigi617 luigi617 left a comment

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Could you change the title of PR to 5th gen? Rest LGTM.

@aemous aemous changed the title [v2] Enable CRT S3 transfer client by default on 6th gen instance families [v2] Enable CRT S3 transfer client by default on 5th gen instance families Sep 30, 2026
@aemous

aemous commented Sep 30, 2026

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Could you change the title of PR to 5th gen? Rest LGTM.

Done. I've also modified some tests that were failing on certain platforms.

@aemous
aemous merged commit a432770 into v2 Oct 1, 2026
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@ashovlin
ashovlin deleted the crt-rollout-4 branch October 1, 2026 16:34
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3 participants