0.26.0

New Features ✨

Attributes

• Add vercel.ai.telemetry.metadata.<key> attribute by @isaacs in #662
• Add nel.sampling_fraction by @loewenheim in #668

Op

• Add gen_ai.evaluate op by @andreiborza in #650
• Deprecate framework-specific span ops by @Lms24 in #622
• Add span op deprecation support by @Lms24 in #621

Bug Fixes 🐛

• (descriptions) Define template substitution for array values by @s1gr1d in #663
• (gen_ai) Map Anthropic tool results to canonical attribute by @obostjancic in #660

Internal Changes 🔧

Deps

• Bump brace-expansion from 5.0.9 to 5.0.12 by @dependabot in #665
• Bump devalue from 5.9.2 to 5.9.4 by @dependabot in #666
• Bump dompurify from 3.4.13 to 3.4.16 by @dependabot in #664