trulens

vtrulens-2.8.1 scope: trulens Security

This release patches 1 CVE for security teams tracking exposure across their dependency inventory.

Published 20d Monitoring & Metrics

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1 patched CVE

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This release patches 1 known CVE CVE-2026-42208 EPSS 57%

1 CVEs patched

Topics

agent-evaluation agentops ai-agents ai-monitoring ai-observability evals

+7 more

explainable-ml llm-eval llm-evaluation llmops llms machine-learning neural-networks

Summary

AI summary

Adopted the library-skills convention for agent skill discovery.

Changes in this release

Type	Severity	Summary	CVE
Feature
Feature	Medium	GEPA (Genetic Prompt Optimization) Integration added by @bashward. GEPA (Genetic Prompt Optimization) Integration added by @bashward. Source: llm_adapter@2026-05-21 Confidence: high	—
Feature	Medium	Adopt library-skills convention for agent skill discovery. Adopt library-skills convention for agent skill discovery. Source: llm_adapter@2026-05-21 Confidence: high	—
Feature	Medium	Diagnosis and improvement agent skill added by @nuthalapativarun. Diagnosis and improvement agent skill added by @nuthalapativarun. Source: llm_adapter@2026-05-21 Confidence: low	—
Dependency	Medium	Default models updated for bedrock, cortex, and litellm providers. Default models updated for bedrock, cortex, and litellm providers. Source: llm_adapter@2026-05-21 Confidence: high	—
Bugfix	Low	Dummy app TruLens imports cleaned up. Dummy app TruLens imports cleaned up. Source: granite4.1:30b@2026-05-22-audit Confidence: low	—
Refactor	Medium	Snowflake-specific logic decoupled from trulens-core by @joshreini1. Snowflake-specific logic decoupled from trulens-core by @joshreini1. Source: llm_adapter@2026-05-21 Confidence: low	—
Refactor	Medium	Feedback API migrated to Metric API across docs, examples, and tests. Feedback API migrated to Metric API across docs, examples, and tests. Source: granite4.1:30b@2026-05-22-audit Confidence: low	—
Other	Medium	All MkDocs documentation build warnings fixed by @sfc-gh-jreini. All MkDocs documentation build warnings fixed by @sfc-gh-jreini. Source: llm_adapter@2026-05-21 Confidence: low	—
Other	Medium	Added Guardrails Setup Agent Skill documentation by @zeesshhh0. Added Guardrails Setup Agent Skill documentation by @zeesshhh0. Source: llm_adapter@2026-05-21 Confidence: low	—

Full changelog

What's Changed

feat: GEPA (Genetic Prompt Optimization) Integration by @bashward in https://github.com/truera/trulens/pull/2464
update default models for bedrock, cortex, and litellm providers by @ykd007 in https://github.com/truera/trulens/pull/2511
add py.typed markers to otel/semconv and hotspots; add SpanType.GUARDRAIL by @ykd007 in https://github.com/truera/trulens/pull/2512
refactor: decouple Snowflake-specific logic from trulens-core by @joshreini1 in https://github.com/truera/trulens/pull/2452

Docs

Fix all MkDocs documentation build warnings by @sfc-gh-jreini in https://github.com/truera/trulens/pull/2393
TruLens 2.8 blog by @sfc-gh-jreini in https://github.com/truera/trulens/pull/2433
docs: expand OTEL overview page with span types, enabling, and guides by @nuthalapativarun in https://github.com/truera/trulens/pull/2454
chore: migrate docs build from mkdocs to properdocs by @nuthalapativarun in https://github.com/truera/trulens/pull/2459

Bug Fixes

Clean up dummy app TruLens imports by @ada-powerful in https://github.com/truera/trulens/pull/2491
refactor: migrate Feedback API to Metric API across docs, examples, and tests by @joshreini1 in https://github.com/truera/trulens/pull/2513

Agent Skills

feat: adopt library-skills convention for agent skill discovery by @sfc-gh-jreini in https://github.com/truera/trulens/pull/2437
docs: Add Guardrails Setup Agent Skill by @zeesshhh0 in https://github.com/truera/trulens/pull/2439
feat: add diagnosis and improvement agent skill by @nuthalapativarun in https://github.com/truera/trulens/pull/2461

New Contributors

@zeesshhh0 made their first contribution in https://github.com/truera/trulens/pull/2439
@nuthalapativarun made their first contribution in https://github.com/truera/trulens/pull/2454
@ada-powerful made their first contribution in https://github.com/truera/trulens/pull/2491
@ykd007 made their first contribution in https://github.com/truera/trulens/pull/2511

Full Changelog: https://github.com/truera/trulens/compare/trulens-2.8.0...trulens-2.8.1

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