Files
codex/codex-rs/otel/src
swastik-oai 770ed6dcea Allow plus signs in metric tags (#55227)
## Why

App versions containing build metadata use `+`, which metric tag validation previously rejected.

## What changed

Accept `+` in metric tag keys and values so these versions can be included in the `app.version` session tag.

## Testing

Extend the session metric tag test to cover a version with build metadata, verifying that its value and tag ordering are preserved.

GitOrigin-RevId: 62ad732b8d280c2d0c4e1b0de8cab26ff87c9d47
2026-10-19 09:09:25 +00:00
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