generated: '2026-07-19'
method: searched
source: https://laminar.sh/docs/changelog
url: https://laminar.sh/docs/changelog
scheme: dated
cadence: monthly (dated month headings; earlier entries carry explicit dates)
current_version:
  api: v1
  typescript_sdk: 0.8.38
  python_sdk: 0.7.56
  cli: 0.3.2
window: 'recent entries only — the live changelog at the source URL is authoritative'
entries:
- date: '2026-07'
  breaking: false
  highlights:
  - 'Claude Code and Codex plugins: trace Claude Code and OpenAI Codex CLI sessions with
    npx lmnr-cli@latest plugin add claude-code (or codex); each turn becomes a trace with LLM calls,
    tool executions and subagents, grouped one session per conversation.'
  - Render templates can now be generated in the editor from a natural-language description, including
    the span filter for trace templates.
  - Signals and alerts can be paused/resumed with an Active switch without losing configuration.
  - 'Evaluations UI refresh: groups sidebar, combined progression chart with per-dimension lines,
    aggregation picker (Average/Sum/Min/Max/Median/p90/p95/p99), split-view run detail, old -> new
    deltas in side-by-side comparison.'
  - Trace render templates can render a whole trace (SQL WHERE filter selects the spans), not just a
    single span's input or output.
  - Evaluations run with LMNR_DEBUG=true join the current debug session automatically; sessions are
    one timeline of runs, evals and notes.
- date: '2026-06'
  breaking: false
  highlights:
  - 'Laminar Agent: ask about project data in plain language across three surfaces — the MCP server
    (ask_agent tool), the CLI (lmnr-cli ask), and Slack (@Laminar in a connected channel).'
  - Signals gain a Settings tab (General, Alerts, Backfill, Activity), historical backfill runs, and a
    rebuilt two-panel clusters view.
  - AI SDK v7 support via registerTelemetry(new LaminarAiSdkTelemetry()), with a migration guide from
    the v5/v6 experimental_telemetry style.
  - 'Debugger session continuation: the first LMNR_DEBUG=true run writes .lmnr/debug-session.json and
    later runs in the same directory rejoin it; lmnr-cli debug session new mints a clean session.'
  - 'One-command CLI onboarding: lmnr-cli setup logs in, picks/creates a project, writes
    LMNR_PROJECT_API_KEY, links the directory, and installs the Laminar agent skill. lmnr-cli login
    adds OAuth device-flow auth.'
- date: '2026-05'
  breaking: false
  additions:
  - OTLP/HTTP+JSON ingest on /v1/traces alongside gRPC and HTTP+protobuf, for browser SDKs and other
    runtimes without a protobuf encoder.
  highlights:
  - Saved table views per project and per resource (traces, spans, sessions, evaluations, datasets,
    queues, debugger sessions, playgrounds, signal events).
  - Render templates — a CUSTOM mode on every input/output viewer that renders values through a JSX
    template.
  - 'client.traces.pushMetadata / push_metadata attaches metadata to a trace that has already ended.'
  - PII redaction as a project-level toggle (Settings -> Security), on Pro and Enterprise and
    self-hostable as a gRPC service.
- date: '2026-04'
  breaking: true
  breaking_changes:
  - Online evaluators were removed.
  highlights:
  - Evaluations docs restructured end to end (new Concepts, Compare runs, Datasets, Self-hosted pages).
  - New Viewing traces page documenting transcript view.
  - 'Alerts and reports overhaul: multi-severity filtering (Info/Warning/Critical), skip-similar-events,
    a new-cluster trigger type, and weekday/weekly signal summary reports.'
  - Auto-instrumentation added for the OpenAI Agents SDK and Pydantic AI in Python; native Mastra
    support via MastraExporter.
- date: '2026-02'
  breaking: false
  highlights:
  - 'Signals (LLM outcomes): define outcomes and behaviors, then backfill or run triggers on new
    traces; signal events link back to trace context.'
  - Labeling queues — push spans or dataset rows into queues, label in the UI, write results back to
    datasets via UI or API.
  - MCP server for trace-aware assistants (Claude Code, Cursor, Codex).
  - New integrations — OpenRouter via the OpenAI SDK, and Pydantic AI via OpenTelemetry.
- date: '2026-01'
  breaking: false
  highlights:
  - SQL Editor — read-only ClickHouse SQL across traces, signals, logs, datasets and evals, with
    export of results to datasets or labeling queues.
- date: '2025-12-17'
  breaking: false
  highlights:
  - Platform refresh — backend and frontend upgrades for compatibility, performance and reliability.
  - Unified ingest for search and events; events become searchable.
  - Self-hosted query engine reaches parity with production behavior.
  - Always-on trace aggregation with new ClickHouse tables and a backfill path.