Release v0.41.0

[XSAM]

⚠️ Notice ⚠️

This release contains breaking changes:

• RegisterDBStatsMetrics now returns (metric.Registration, error) (previously returned only error) so callers can Unregister() the callback and avoid memory leaks.
  • If you need to unregister: reg, err := RegisterDBStatsMetrics(...) + defer reg.Unregister().
  • If you do not need to unregister: _, err := RegisterDBStatsMetrics(...).
• WithAttributes now appends attributes when specified multiple times (previously overwrote existing attributes).
  • If you relied on overwriting: consolidate your attributes into a single WithAttributes(...) call.

Added

• WithTextMapPropagator allows customization of the OTel text map propagator used by SQLCommenter. (Allow configuring a TextMapPropagator for SQLCommenter #540)
  This is an experimental feature and may be changed or removed in a later release.

Removed

• Drop support for Go 1.23. (Drop support for Go 1.23 #533)

Changed

• Reduce allocations and improve performance when creating spans. (Improve createSpan performance #549)
• Reduce allocations when recording metrics. (Reduce recordMetric allocations #550)
• RegisterDBStatsMetrics now returns a metric.Registration so callbacks can be unregistered. (RegisterDBStatsMetrics provides no way to Unregister, leading to memory leaks #580)
• WithAttributes now accumulates attributes across multiple calls instead of overwriting. (Change WithAttributes to append instead of replace attributes #576)
• Upgrade OTel to v1.39.0. (Update opentelemetry-go monorepo #583)

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 85.3%. Comparing base (197f6da) to head (31ee718).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@          Coverage Diff          @@
##            main    #590   +/-   ##
=====================================
  Coverage   85.3%   85.3%           
=====================================
  Files         16      16           
  Lines        752     752           
=====================================
  Hits         642     642           
  Misses        74      74           
  Partials      36      36           

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