## chore: release v37.0.0

Bumps the workspace version from `36.0.0` to `37.0.0` in `Cargo.toml` and regenerates `Cargo.lock`.

## Post-merge steps

1. Trigger the `create_release` job on GitLab — builds artifacts and creates a draft GitHub release.
2. Ask someone from `libdatadog-core` or `libdatadog-release` to publish the draft release.
3. Trigger the `release-proposal-dispatch` GitHub Actions workflow for per-crate crates.io publishing:
   crates: libdd-data-pipeline,libdd-trace-stats,libdd-trace-utils,libdd-ddsketch

## Notable changes since v36.0.0

- `feat(data-pipeline)`: export client-computed span stats as OTLP trace metrics (#2067)
- `feat(otel-thread-ctx)`: add self check capability (#2095)
- `fix(trace-stats)`: add `grpc_method` to aggregation key (#2151)
- `feat(data-pipeline)`: add stdout log trace exporter (#2074)
- `feat(remote-config)`: use the proto file from the agent (#2165)
- `feat(sidecar)`: expose `default_service_name` for `svc.*` process tags (#2053)
- feat(otlp)!: Export OTLP spans with attribute-level OTel compatibility (#2091)

Co-authored-by: munir.abdinur <[email protected]>

…ibdd-data-pipeline, libdd-li... (#2201)

# Release proposal for libdd-capabilities-impl, libdd-common,
libdd-data-pipeline, libdd-library-config, libdd-remote-config,
libdd-sampling, libdd-telemetry, libdd-tinybytes, libdd-trace-utils and
their dependencies

This PR contains version bumps based on public API changes and commits
since last release.

## libdd-capabilities
**Next version:** `2.1.0`
**Semver bump:** `minor`
**Tag:** `libdd-capabilities-v2.1.0`

### Commits

- feat(data-pipeline)!: add stdout log trace exporter (#2074)

## libdd-common
**Next version:** `5.1.0`
**Semver bump:** `minor`
**Tag:** `libdd-common-v5.1.0`

### Commits

- refactor(clippy): prefer core and alloc imports (#2196)
- fix: update rustls-webpki to 0.103.13 (#2187)
- fix: update anyhow for unsoundness (#2186)
- feat(machine id): Add helpers in ddcommon to fetch the machine UUID l…
(#2163)

## libdd-ddsketch
**Next version:** `1.1.0`
**Semver bump:** `minor`
**Tag:** `libdd-ddsketch-v1.1.0`

### Commits

- feat(data-pipeline)!: export client-computed span stats as OTLP trace
metrics (#2067)
- test(ddsketch): add microbenchmarks for add/encode/collapse (#2125)

## libdd-trace-protobuf
**Next version:** `4.0.0`
**Semver bump:** `major`
**Tag:** `libdd-trace-protobuf-v4.0.0`

### Commits

- chore!: update protobufs to be in sync with datadog-agent (#2180)
- feat(stats)!: add whole key cardinality limit (#2158)
- feat(remote-config)!: use the proto file from the agent (#2165)
- feat(data-pipeline): OTLP HTTP/protobuf trace export (#2115)

## libdd-capabilities-impl
**Next version:** `3.0.0`
**Semver bump:** `major`
**Tag:** `libdd-capabilities-impl-v3.0.0`

### ⚠️ major bump forced due to:

- `libdd-common`: ^4.1.0 → ^5.1.0

### Commits

- feat(data-pipeline)!: add stdout log trace exporter (#2074)

## libdd-library-config
**Next version:** `3.0.0`
**Semver bump:** `major`
**Tag:** `libdd-library-config-v3.0.0`

### ⚠️ major bump forced due to:

- `libdd-trace-protobuf`: ^3.0.2 → ^4.0.0

### Commits

- refactor(clippy): prefer core and alloc imports (#2196)
- feat(library-config)!: caller-supplied threadlocal schema and extra
process-context attributes (#2162)
- fix(otel-thread-ctx): put the threadlocal attributes at the right
place in the context (#2167)

## libdd-remote-config
**Next version:** `2.0.0`
**Semver bump:** `major`
**Tag:** `libdd-remote-config-v2.0.0`

### ⚠️ major bump forced due to:

- `libdd-trace-protobuf`: ^3.0.2 → ^4.0.0

### Commits

- refactor(libdd-remote-config)!: hide Target inner properties so they
are not leaked (#2182)
- feat(remote-config)!: use the proto file from the agent (#2165)
- refactor(rc): reexport Endpoint and Tag common types (#2147)

## libdd-trace-normalization
**Next version:** `3.0.0`
**Semver bump:** `major`
**Tag:** `libdd-trace-normalization-v3.0.0`

### ⚠️ major bump forced due to:

- `libdd-trace-protobuf`: ^3.0.1 → ^4.0.0

### Commits

- feat(data-pipeline)!: CSS Trace Filters (#1985)

## libdd-shared-runtime
**Next version:** `2.0.0`
**Semver bump:** `major`
**Tag:** `libdd-shared-runtime-v2.0.0`

### ⚠️ major bump forced due to:

- `libdd-common`: ^4.1.0 → ^5.1.0

### Commits

- feat(shared-runtime)!: SharedRuntime Borrowed & Owned mode (#2061)
- feat(shared-runtime)!: use weak waker in trigger [APMSP-3371] (#2050)

## libdd-trace-utils
**Next version:** `9.0.0`
**Semver bump:** `major`
**Tag:** `libdd-trace-utils-v9.0.0`

### ⚠️ major bump forced due to:

- `libdd-common`: ^4.2.0 → ^5.1.0
- `libdd-trace-protobuf`: ^3.0.2 → ^4.0.0

### Commits

- ci(miri): skip slow miri tests (#2188)
- chore!: update protobufs to be in sync with datadog-agent (#2180)
- feat(data-pipeline): add agentless export (#2081)
- feat(data-pipeline)!: add stdout log trace exporter (#2074)
- feat(data-pipeline): OTLP HTTP/protobuf trace export (#2115)
- feat(otlp)!: Export OTLP spans with attribute-level OTel compatibility
(#2091)
- test(trace-utils): add V05 msgpack decode microbenchmark (#2127)
- feat(data-pipeline)!: export client-computed span stats as OTLP trace
metrics (#2067)
- test(trace-utils): add VecMap microbenchmarks (#2126)
- chore(stats)!: submit p0 telemetry in stats (#2130)
- refactor(change-buffer)!: replace slot index with span_id, fix segment
isolation (#2105)
- feat(data-pipeline)!: CSS Trace Filters (#1985)
- feat(trace-exporter): add v1 span and its encoder (#2039)
- fix(trace-utils): mark decoded span maps as deduped (#2110)
- feat(trace-utils)!: change buffer implementation (#2055)
- feat(native-spans)!: change buffer foundation (#2046)
- refactor(span)!: use VecMap for `meta`, `metrics` and `meta_struct`
for v04 spans (#2043)
- test: fix timeouts on heavily contended scenarios (#2093)

## libdd-telemetry
**Next version:** `6.0.0`
**Semver bump:** `major`
**Tag:** `libdd-telemetry-v6.0.0`

### ⚠️ major bump forced due to:

- `libdd-common`: ^4.2.0 → ^5.1.0
- `libdd-shared-runtime`: ^1.0.0 → ^2.0.0

### Commits

- ci(miri): skip slow miri tests (#2188)
- refactor(libdd-telemetry)!: avoid leaking libdd-common types in the
public API (#2152)
- feat(shared-runtime)!: SharedRuntime Borrowed & Owned mode (#2061)

## libdd-trace-obfuscation
**Next version:** `5.0.0`
**Semver bump:** `major`
**Tag:** `libdd-trace-obfuscation-v5.0.0`

### ⚠️ major bump forced due to:

- `libdd-common`: ^4.2.0 → ^5.1.0
- `libdd-trace-protobuf`: ^3.0.2 → ^4.0.0
- `libdd-trace-utils`: ^8.0.0 → ^9.0.0

### Commits

- refactor(clippy): prefer core and alloc imports (#2196)
- ci(miri): skip slow miri tests (#2188)
- fix: update anyhow for unsoundness (#2186)

## libdd-trace-stats
**Next version:** `6.0.0`
**Semver bump:** `major`
**Tag:** `libdd-trace-stats-v6.0.0`

### ⚠️ major bump forced due to:

- `libdd-common`: ^4.2.0 → ^5.1.0
- `libdd-shared-runtime`: ^1.0.0 → ^2.0.0
- `libdd-trace-protobuf`: ^3.0.2 → ^4.0.0
- `libdd-trace-utils`: ^8.0.0 → ^9.0.0

### Commits

- chore!: update protobufs to be in sync with datadog-agent (#2180)
- feat(stats)!: send telemetry for cardinality limits (#2159)
- feat(stats)!: add whole key cardinality limit (#2158)
- fix(trace-stats)!: add grpc_method to aggregation key (#2151)
- feat(shared-runtime)!: SharedRuntime Borrowed & Owned mode (#2061)
- feat(data-pipeline)!: export client-computed span stats as OTLP trace
metrics (#2067)
- refactor(span)!: use VecMap for `meta`, `metrics` and `meta_struct`
for v04 spans (#2043)

## libdd-data-pipeline
**Next version:** `7.0.0`
**Semver bump:** `major`
**Tag:** `libdd-data-pipeline-v7.0.0`

### ⚠️ major bump forced due to:

- `libdd-common`: ^4.2.0 → ^5.1.0
- `libdd-shared-runtime`: ^1.0.0 → ^2.0.0
- `libdd-telemetry`: ^5.0.1 → ^6.0.0
- `libdd-trace-protobuf`: ^3.0.2 → ^4.0.0
- `libdd-trace-stats`: ^5.0.0 → ^6.0.0
- `libdd-trace-utils`: ^8.0.0 → ^9.0.0

### Commits

- feat(trace_exporter): enable telemetry in stats exporter (#2160)
- refactor(libdd-telemetry)!: avoid leaking libdd-common types in the
public API (#2152)
- feat(stats): emit canonical gRPC status name for OTLP
rpc.response.status_code (#2183)
- feat(data-pipeline): add agentless export (#2081)
- feat(stats)!: send telemetry for cardinality limits (#2159)
- feat(stats)!: add whole key cardinality limit (#2158)
- fix(trace-stats)!: add grpc_method to aggregation key (#2151)
- feat(data-pipeline)!: add stdout log trace exporter (#2074)
- feat(shared-runtime)!: SharedRuntime Borrowed & Owned mode (#2061)
- feat(data-pipeline): OTLP HTTP/protobuf trace export (#2115)
- feat(otlp)!: Export OTLP spans with attribute-level OTel compatibility
(#2091)
- feat(data-pipeline)!: export client-computed span stats as OTLP trace
metrics (#2067)
- chore(stats)!: submit p0 telemetry in stats (#2130)
- feat(data-pipeline)!: CSS Trace Filters (#1985)
- feat(shared-runtime)!: use weak waker in trigger [APMSP-3371] (#2050)
- refactor(span)!: use VecMap for `meta`, `metrics` and `meta_struct`
for v04 spans (#2043)
- feat(stats)!: add endpoint gating to client-side stats [APMSP-3361]
(#2040)

## libdd-dogstatsd-client
**Next version:** `4.0.0`
**Semver bump:** `major`
**Tag:** `libdd-dogstatsd-client-v4.0.0`

### ⚠️ major bump forced due to:

- `libdd-common`: ^4.1.0 → ^5.1.0


## libdd-sampling
**Next version:** `5.0.0`
**Semver bump:** `major`
**Tag:** `libdd-sampling-v5.0.0`

### ⚠️ major bump forced due to:

- `libdd-common`: ^4.2.0 → ^5.1.0
- `libdd-trace-utils`: ^8.0.0 → ^9.0.0


[APMSP-3371]:
https://datadoghq.atlassian.net/browse/APMSP-3371?atlOrigin=eyJpIjoiNWRkNTljNzYxNjVmNDY3MDlhMDU5Y2ZhYzA5YTRkZjUiLCJwIjoiZ2l0aHViLWNvbS1KU1cifQ

---------

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: iunanua <[email protected]>

# What does this PR do?

Removes \`grpc_method\` / \`rpc.method\` entirely from the OTLP trace metrics pipeline.

Previously \`grpc_method\` was a sidecar on \`GroupedStats\` — present in the OTLP metric payload as an explicit attribute, but not part of the aggregation key. This PR removes it from both:

- **\`FixedAggregationKey\`** — it is no longer an aggregation dimension.
- **\`OtlpExactGroup\`** — it is no longer carried in the per-cell sidecar.
- **\`build_attributes()\`** — \`rpc.method\` is no longer emitted on OTLP histogram data points.

## Rationale

For gRPC spans, \`span.resource\` already carries the full method path (e.g. \`/package.Service/Method\`). Emitting \`rpc.method\` as a separate OTLP attribute is redundant — \`span.resource\` (mapped to \`span.name\` on the data point) is the authoritative carrier of gRPC method identity and is already an aggregation dimension.

Adding \`rpc.method\` as a separate dimension would also increase cardinality for gRPC services without providing any information not already present on the metric.

Note: \`rpc.response.status_code\` (from \`grpc.status.code\`) is **kept** as a first-class aggregation dimension — it is not redundant with any existing field.

# Motivation

Correctness and cleanliness for the OTLP trace metrics feature landed in #2067.

# Risk

**Breaking changes (major semver):**

- \`FixedAggregationKey<T>\` loses its \`grpc_method: T\` field. Callers constructing the struct by name must remove the field.
- \`OtlpExactGroup\` loses its \`grpc_method\` field.
- \`build_attributes()\` loses the \`grpc_method\` parameter.

**Blast radius is limited** because:

1. The OTLP trace metrics feature (#2067) landed on \`main\` after the v36 release (June 19). No released version is affected — this only exists in unreleased code.
2. The OTLP metrics path is opt-in: the sidecar only activates it when \`set_otlp_metrics_endpoint\` is configured. No SDK enables this today.
3. Agent \`/v0.6/stats\` protobuf wire format is unchanged — \`ClientGroupedStats\` has no \`grpc_method\` field.

**Urgency: low.** No live production systems are affected. This must land before the next release that ships the OTLP metrics feature.

# How to test the change?

```
cargo nextest run -p libdd-trace-stats -p datadog-ipc -p libdd-data-pipeline
```

Co-authored-by: munir.abdinur <[email protected]>
Signed-off-by: Taegyun Kim <[email protected]>

## chore: release v37.0.0

Bumps the workspace version from `36.0.0` to `37.0.0` in `Cargo.toml` and regenerates `Cargo.lock`.

## Post-merge steps

1. Trigger the `create_release` job on GitLab — builds artifacts and creates a draft GitHub release.
2. Ask someone from `libdatadog-core` or `libdatadog-release` to publish the draft release.
3. Trigger the `release-proposal-dispatch` GitHub Actions workflow for per-crate crates.io publishing:
   crates: libdd-data-pipeline,libdd-trace-stats,libdd-trace-utils,libdd-ddsketch

## Notable changes since v36.0.0

- `feat(data-pipeline)`: export client-computed span stats as OTLP trace metrics (#2067)
- `feat(otel-thread-ctx)`: add self check capability (#2095)
- `fix(trace-stats)`: add `grpc_method` to aggregation key (#2151)
- `feat(data-pipeline)`: add stdout log trace exporter (#2074)
- `feat(remote-config)`: use the proto file from the agent (#2165)
- `feat(sidecar)`: expose `default_service_name` for `svc.*` process tags (#2053)
- feat(otlp)!: Export OTLP spans with attribute-level OTel compatibility (#2091)

Co-authored-by: munir.abdinur <[email protected]>
Signed-off-by: Taegyun Kim <[email protected]>