Distro release 1.8.5

[rads-1996]

Release History

1.8.5 (2026-01-28)

Features Added

• In double-instrumentation scenarios, surface in the log stream instead of just in diagnostic logs.
  (#44682)

Bugs Fixed

• Fix the format of the fixed percentage sampler constant and ensure backward compatability
  (#44656)
• Only add PerformanceCounter Processors after PerformanceCounter setup to avoid circular dependency.
  (#44661)

Other Changes

• Declare support for Python 3.13 and 3.14
  (#44550)

[Copilot]

Pull request overview

Updates the azure-monitor-opentelemetry changelog entry for the 1.8.5 distro release.

Changes:

• Sets the 1.8.5 entry from “Unreleased” to a dated release header.
• Removes the empty “Breaking Changes” section for 1.8.5.