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feat(tracing): Add span links - #8068

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@pabloDeputter

@pabloDeputter pabloDeputter commented Oct 20, 2026 •

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Description

Adds span links as is specified in the specs: a span can reference other spans, e.g. in other traces, without making them its parent.

  • sentry_sdk.start_span(..., links=[...]), span.add_link(link) and span.add_links(links); with links being of the following format: {"trace_id", "span_id", "sampled"?, "attributes"?}
  • span without links omits links
  • NoOpSpan ignores links
  • added to the migration guide as well
  • example in sentry-test

Related docs update can be found here.

Why

An SQS/SNS consumer can receive a batch of records sent by several producers, each in its own trace. A span can only have one parent, so without links there's no way to connect the consumer each producer. With links the consumer span can point to each producer's trace.

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github-actions Bot commented Oct 20, 2026 •

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Coverage Results 📊

✅ 56441 passed | ⏭️ 2890 skipped | Total: 59331 | Pass Rate: 95.13% | Execution Time: 160m 21s

📊 Comparison with Base Branch

Metric Change
Total Tests 📉 -78866
Passed Tests 📉 -74422
Failed Tests 📉 -58
Skipped Tests 📉 -4386

➖ Removed Tests (58)

View removed tests
  • test_input_attributes_nonstreaming_chat[False-True-False-messages2-expected_system_instructions2-expected_input_messages2]
    • File: tests.integrations.mistral.test_mistral
  • test_input_attributes_nonstreaming_chat[False-True-False-messages3-expected_system_instructions3-expected_input_messages3]
    • File: tests.integrations.mistral.test_mistral
  • test_input_attributes_nonstreaming_chat[False-False-True-messages0-expected_system_instructions0-expected_input_messages0]
    • File: tests.integrations.mistral.test_mistral
  • test_input_attributes_nonstreaming_chat[False-False-True-messages1-expected_system_instructions1-expected_input_messages1]
    • File: tests.integrations.mistral.test_mistral
  • test_input_attributes_nonstreaming_chat[False-False-True-messages2-expected_system_instructions2-expected_input_messages2]
    • File: tests.integrations.mistral.test_mistral
  • test_input_attributes_nonstreaming_chat[False-False-True-messages3-expected_system_instructions3-expected_input_messages3]
    • File: tests.integrations.mistral.test_mistral
  • test_input_attributes_nonstreaming_chat[False-False-False-messages0-expected_system_instructions0-expected_input_messages0]
    • File: tests.integrations.mistral.test_mistral
  • test_input_attributes_nonstreaming_chat[False-False-False-messages1-expected_system_instructions1-expected_input_messages1]
    • File: tests.integrations.mistral.test_mistral
  • test_input_attributes_nonstreaming_chat[False-False-False-messages2-expected_system_instructions2-expected_input_messages2]
    • File: tests.integrations.mistral.test_mistral
  • test_input_attributes_nonstreaming_chat[False-False-False-messages3-expected_system_instructions3-expected_input_messages3]
    • File: tests.integrations.mistral.test_mistral
  • test_input_attributes_nonstreaming_chat_async[True-True-True-messages0-expected_system_instructions0-expected_input_messages0]
    • File: tests.integrations.mistral.test_mistral
  • test_input_attributes_nonstreaming_chat_async[True-True-True-messages1-expected_system_instructions1-expected_input_messages1]
    • File: tests.integrations.mistral.test_mistral
  • test_input_attributes_nonstreaming_chat_async[True-True-True-messages2-expected_system_instructions2-expected_input_messages2]
    • File: tests.integrations.mistral.test_mistral
  • test_input_attributes_nonstreaming_chat_async[True-True-True-messages3-expected_system_instructions3-expected_input_messages3]
    • File: tests.integrations.mistral.test_mistral
  • test_input_attributes_nonstreaming_chat_async[True-True-False-messages0-expected_system_instructions0-expected_input_messages0]
    • File: tests.integrations.mistral.test_mistral
  • test_input_attributes_nonstreaming_chat_async[True-True-False-messages1-expected_system_instructions1-expected_input_messages1]
    • File: tests.integrations.mistral.test_mistral
  • test_input_attributes_nonstreaming_chat_async[True-True-False-messages2-expected_system_instructions2-expected_input_messages2]
    • File: tests.integrations.mistral.test_mistral
  • test_input_attributes_nonstreaming_chat_async[True-True-False-messages3-expected_system_instructions3-expected_input_messages3]
    • File: tests.integrations.mistral.test_mistral
  • test_input_attributes_nonstreaming_chat_async[True-False-True-messages0-expected_system_instructions0-expected_input_messages0]
    • File: tests.integrations.mistral.test_mistral
  • test_input_attributes_nonstreaming_chat_async[True-False-True-messages1-expected_system_instructions1-expected_input_messages1]
    • File: tests.integrations.mistral.test_mistral
  • test_input_attributes_nonstreaming_chat_async[True-False-True-messages2-expected_system_instructions2-expected_input_messages2]
    • File: tests.integrations.mistral.test_mistral
  • test_input_attributes_nonstreaming_chat_async[True-False-True-messages3-expected_system_instructions3-expected_input_messages3]
    • File: tests.integrations.mistral.test_mistral
  • test_input_attributes_nonstreaming_chat_async[True-False-False-messages0-expected_system_instructions0-expected_input_messages0]
    • File: tests.integrations.mistral.test_mistral
  • test_input_attributes_nonstreaming_chat_async[True-False-False-messages1-expected_system_instructions1-expected_input_messages1]
    • File: tests.integrations.mistral.test_mistral
  • test_input_attributes_nonstreaming_chat_async[True-False-False-messages2-expected_system_instructions2-expected_input_messages2]
    • File: tests.integrations.mistral.test_mistral
  • test_input_attributes_nonstreaming_chat_async[True-False-False-messages3-expected_system_instructions3-expected_input_messages3]
    • File: tests.integrations.mistral.test_mistral
  • test_input_attributes_nonstreaming_chat_async[False-True-True-messages0-expected_system_instructions0-expected_input_messages0]
    • File: tests.integrations.mistral.test_mistral
  • test_input_attributes_nonstreaming_chat_async[False-True-True-messages1-expected_system_instructions1-expected_input_messages1]
    • File: tests.integrations.mistral.test_mistral
  • test_input_attributes_nonstreaming_chat_async[False-True-True-messages2-expected_system_instructions2-expected_input_messages2]
    • File: tests.integrations.mistral.test_mistral
  • test_input_attributes_nonstreaming_chat_async[False-True-True-messages3-expected_system_instructions3-expected_input_messages3]
    • File: tests.integrations.mistral.test_mistral
  • test_input_attributes_nonstreaming_chat_async[False-True-False-messages0-expected_system_instructions0-expected_input_messages0]
    • File: tests.integrations.mistral.test_mistral
  • test_input_attributes_nonstreaming_chat_async[False-True-False-messages1-expected_system_instructions1-expected_input_messages1]
    • File: tests.integrations.mistral.test_mistral
  • test_input_attributes_nonstreaming_chat_async[False-True-False-messages2-expected_system_instructions2-expected_input_messages2]
    • File: tests.integrations.mistral.test_mistral
  • test_input_attributes_nonstreaming_chat_async[False-True-False-messages3-expected_system_instructions3-expected_input_messages3]
    • File: tests.integrations.mistral.test_mistral
  • test_input_attributes_nonstreaming_chat_async[False-False-True-messages0-expected_system_instructions0-expected_input_messages0]
    • File: tests.integrations.mistral.test_mistral
  • test_input_attributes_nonstreaming_chat_async[False-False-True-messages1-expected_system_instructions1-expected_input_messages1]
    • File: tests.integrations.mistral.test_mistral
  • test_input_attributes_nonstreaming_chat_async[False-False-True-messages2-expected_system_instructions2-expected_input_messages2]
    • File: tests.integrations.mistral.test_mistral
  • test_input_attributes_nonstreaming_chat_async[False-False-True-messages3-expected_system_instructions3-expected_input_messages3]
    • File: tests.integrations.mistral.test_mistral
  • test_input_attributes_nonstreaming_chat_async[False-False-False-messages0-expected_system_instructions0-expected_input_messages0]
    • File: tests.integrations.mistral.test_mistral
  • test_input_attributes_nonstreaming_chat_async[False-False-False-messages1-expected_system_instructions1-expected_input_messages1]
    • File: tests.integrations.mistral.test_mistral
  • test_input_attributes_nonstreaming_chat_async[False-False-False-messages2-expected_system_instructions2-expected_input_messages2]
    • File: tests.integrations.mistral.test_mistral
  • test_input_attributes_nonstreaming_chat_async[False-False-False-messages3-expected_system_instructions3-expected_input_messages3]
    • File: tests.integrations.mistral.test_mistral
  • test_output_attributes_nonstreaming_chat[True-True-True]
    • File: tests.integrations.mistral.test_mistral
  • test_output_attributes_nonstreaming_chat[True-True-False]
    • File: tests.integrations.mistral.test_mistral
  • test_output_attributes_nonstreaming_chat[True-False-True]
    • File: tests.integrations.mistral.test_mistral
  • test_output_attributes_nonstreaming_chat[True-False-False]
    • File: tests.integrations.mistral.test_mistral
  • test_output_attributes_nonstreaming_chat[False-True-True]
    • File: tests.integrations.mistral.test_mistral
  • test_output_attributes_nonstreaming_chat[False-True-False]
    • File: tests.integrations.mistral.test_mistral
  • test_output_attributes_nonstreaming_chat[False-False-True]
    • File: tests.integrations.mistral.test_mistral
  • test_output_attributes_nonstreaming_chat[False-False-False]
    • File: tests.integrations.mistral.test_mistral
  • test_output_attributes_nonstreaming_chat_async[True-True-True]
    • File: tests.integrations.mistral.test_mistral
  • test_output_attributes_nonstreaming_chat_async[True-True-False]
    • File: tests.integrations.mistral.test_mistral
  • test_output_attributes_nonstreaming_chat_async[True-False-True]
    • File: tests.integrations.mistral.test_mistral
  • test_output_attributes_nonstreaming_chat_async[True-False-False]
    • File: tests.integrations.mistral.test_mistral
  • test_output_attributes_nonstreaming_chat_async[False-True-True]
    • File: tests.integrations.mistral.test_mistral
  • test_output_attributes_nonstreaming_chat_async[False-True-False]
    • File: tests.integrations.mistral.test_mistral
  • test_output_attributes_nonstreaming_chat_async[False-False-True]
    • File: tests.integrations.mistral.test_mistral
  • test_output_attributes_nonstreaming_chat_async[False-False-False]
    • File: tests.integrations.mistral.test_mistral

All tests are passing successfully.

✅ Patch coverage is 100.00% (27 of 27 changed executable lines covered; target 80%).
Project statement coverage is 90.05% (down 0.20 percentage points from base (60cc27f) to head (35d4ff6)).

Changed files with executable lines (2)
File Patch coverage Changed executable lines
sentry_sdk/_span_batcher.py 100.00% 7/7 covered
sentry_sdk/traces.py 100.00% 20/20 covered
Coverage diff
@@            Coverage Diff             @@
##        master     #8068       +/-##
==========================================
- Coverage    90.25%    90.05%    -0.20%
==========================================
  Files          202       197        -5
  Tracked lines     26660     21082     -5578
  Branches      9926      7256     -2670
==========================================
- Hits         24062     18985     -5077
+ Misses        2598      2097      -501
+ Partials      1510      1235      -275

Generated by Coverage Action

@pabloDeputter
pabloDeputter marked this pull request as ready for review October 20, 2026 11:27
@pabloDeputter
pabloDeputter requested a review from a team as a code owner October 20, 2026 11:27

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