build(deps): bump github.com/aws/aws-sdk-go-v2 from 1.41.12 to 1.42.0

[dependabot]

Bumps github.com/aws/aws-sdk-go-v2 from 1.41.12 to 1.42.0.

Commits

• 9a3190f Release 2026-06-08
• b20dd5b Regenerated Clients
• 75a45ea Update API model
• e736f55 Add preview of changes for standard retry mode behind flag (#3400)
• ba08dc9 Release 2026-06-05.2
• 9a67e21 Revert schema serde (#3442)
• 51692f8 s3/transfermanager: avoid double-closing concurrentReader channel after read ...
• f696d5b Release 2026-06-05
• 7efb8fd Regenerated Clients
• 1a420c5 Update endpoints model
• Additional commits viewable in compare view

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Summary by CodeRabbit

• Dependencies

  • Updated AWS SDK Go v2 from v1.41.12 to v1.42.0.

• Bug Fixes

  • Improved retry behavior with better throttle-aware backoff handling.
  • Enhanced long-polling operation support.
  • Added retry-after header parsing for more accurate delay calculations.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 0e51c10f-5d48-4148-9b6a-d8262985e699

📥 Commits

Reviewing files that changed from the base of the PR and between ddf1cab and b48d40f.

⛔ Files ignored due to path filters (1)

• go.sum is excluded by !**/*.sum

📒 Files selected for processing (8)

• go.mod
• vendor/github.com/aws/aws-sdk-go-v2/aws/go_module_metadata.go
• vendor/github.com/aws/aws-sdk-go-v2/aws/retry/jitter_backoff.go
• vendor/github.com/aws/aws-sdk-go-v2/aws/retry/middleware.go
• vendor/github.com/aws/aws-sdk-go-v2/aws/retry/retry.go
• vendor/github.com/aws/aws-sdk-go-v2/aws/retry/standard.go
• vendor/github.com/aws/aws-sdk-go-v2/internal/context/context.go
• vendor/modules.txt

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📝 Walkthrough

Walkthrough

AWS SDK v2 upgraded from v1.41.12 to v1.42.0 with a new 2026 retry mode featuring throttle-aware exponential backoff, long-polling support, and refined retry token cost management based on error classification, all gated by the AWS_NEW_RETRIES_2026 environment variable.

Changes

AWS SDK v2 Retry 2026 Mode with Throttle-Aware Backoff and Long-Polling

Layer / File(s)	Summary
Module version and context infrastructure go.mod, vendor/github.com/aws/aws-sdk-go-v2/aws/go_module_metadata.go, vendor/modules.txt, vendor/github.com/aws/aws-sdk-go-v2/internal/context/context.go	AWS SDK v2 dependency bumped to v1.42.0; new context helpers SetIsLongPolling and GetIsLongPolling enable downstream code to track long-polling state per request.
Exponential backoff with 2026 mode and throttle awareness vendor/github.com/aws/aws-sdk-go-v2/aws/retry/jitter_backoff.go	ExponentialJitterBackoff gains configurable baseDelay, optional throttle checker, and retries2026 mode flag; dual-mode dispatch in BackoffDelay routes to backoffDelay2026 (throttle-aware) or legacy implementation; new 2026 logic computes t_i = b * min(x * 2^i, MAX_BACKOFF) where x becomes 1s for throttled errors, otherwise uses configured baseDelay.
Long-polling retryer wrapper and context support vendor/github.com/aws/aws-sdk-go-v2/aws/retry/retry.go	New exported AddWithLongPolling function wraps a retryer and overrides IsLongPolling() to return true, marking requests for downstream retry logic.
Standard retryer 2026 configuration and defaults vendor/github.com/aws/aws-sdk-go-v2/aws/retry/standard.go	StandardOptions extended with Throttles []IsErrorThrottle, ThrottlingRetryCost, and BaseDelay fields; environment-driven mode selection via newRetries2026() chooses token cost strategy (throttle vs timeout) and backoff variant; standardDefaults() returns mode-appropriate configuration including new-mode retry cost of 14 and 50ms default baseDelay.
Middleware token release and retry delay handling vendor/github.com/aws/aws-sdk-go-v2/aws/retry/middleware.go	In 2026 mode, initial attempt token release is skipped for retries (preserving quota tokens); long-polling quota overages trigger retry delays before proceeding; attempt index passed to RetryDelay shifts by one in new mode; new adjustForRetryAfterHeader helper parses and clamps delays against X-Amz-Retry-After headers.

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

Suggested labels

size/M

Suggested reviewers

• dongjiang1989
• github-actions

Poem

🐰 A hop toward retry perfection in twenty-twenty-six,
With throttle-aware backoffs and long-polling tricks,
The SDK now knows when to wait, when to rush,
Distributing retries with care, no needless gush.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately summarizes the main change: a dependency bump of github.com/aws/aws-sdk-go-v2 from v1.41.12 to v1.42.0, which is the primary purpose of this PR.
Docstring Coverage	✅ Passed	Docstring coverage is 85.71% which is sufficient. The required threshold is 80.00%.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch dependabot/go_modules/github.com/aws/aws-sdk-go-v2-1.42.0

⚔️ Resolve merge conflicts

• Resolve merge conflict in branch dependabot/go_modules/github.com/aws/aws-sdk-go-v2-1.42.0

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