5.121.0

Features

• AppSec: RFC-1103 normalized HTTP route tag for Express #8857
• General: Add awaited context callbacks to conditional branches #9678
• General: Configure server error statuses #9638
• LLM Observability: Accept image_parts on messages #9684
• LLM Observability: Resolve and propagate agent attribution #9175
• mysql, mysql2: Trace pool connection acquisition #8920
• Test Optimization: Optimize WebdriverIO Jasmine tests #9668

Fixes

• datastreams: Start a new pathway for a message that carries no context #9575
• kafka: Preserve application headers on native produce path #9595
• openai-agents: Preserve structural span ancestry #9674
• Test Optimization: Defer Vitest EFD faultiness detection #9700
• Test Optimization: Escape Vitest browser provided context #9730

Internal (CI, Testing, Benchmarking)

• aws-sdk: Stabilize DynamoDB trace assertions #9675
• Dependencies: Bump mocha #9710
• Dependencies: Bump openai #9725
• General: Update one-pipeline to 1.2.0 #9718
• Test Optimization: Avoid duplicate WebdriverIO fixture copy #9731
• Test Optimization: Move Jest test utilities #9713
• Test Optimization: Stabilize output file limit test #9702