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Changelog

What we shipped,
and when.

Plain-text release notes for every customer-facing change. Subscribe at /feed.xml.

v4.2

Realtime cohorts

Cohort membership now updates within five seconds of a triggering event. Built on the new live-collection runtime; rolling out to all workspaces over the next week.

  • new Live cohort membership updates (5s p99)
  • new Cohort comparison view — diff two cohorts side-by-side
  • fix Fixed timezone drift on weekly retention charts
  • perf Funnel queries up to 4x faster on multi-step funnels
v4.1

Plain-language queries, GA

After three months in beta, our natural-language query layer is generally available. Type a question, get a chart. Available on Team and Scale tiers.

  • new NL → SQL compiler, GA
  • new Query history with diff view
  • fix Saved-view permissions respect workspace roles
v4.0

The columnar rewrite

A nine-month engineering effort to move from Postgres-as-warehouse to a proper columnar store. Median query latency dropped from 1.1s to 180ms. No action required on your part.

  • perf Median query: 1.1s → 180ms
  • perf P95 query: 4.2s → 680ms
  • new Pre-aggregated cubes for top 50 queries per workspace
  • breaking Legacy /v1 API removed; migrate to /v3 by July 1
v3.8

Anomaly detection

Threshold alerts are a tax on your engineers' on-call rotation. Anomaly detection learns your seasonality and only pages you on actual drops.

  • new Per-metric anomaly detection (Team+)
  • new PagerDuty + Opsgenie integrations
  • fix CSV exports respect dashboard filters
v3.7

Reverse-ETL

Lumen now ships data back to your warehouse on a schedule. Snowflake, BigQuery, Redshift, and raw S3 supported at launch.

  • new Reverse-ETL connectors (Snowflake, BigQuery, Redshift, S3)
  • new Per-dataset export schedules
  • fix Resolved a memory leak in long-running funnel queries
v3.6

SAML SSO + SCIM

Identity at last. SAML SSO via Okta, Azure AD, and JumpCloud. SCIM provisioning for the eight largest IdPs.

  • new SAML SSO (Okta, Azure AD, JumpCloud)
  • new SCIM 2.0 provisioning
  • new Audit log export for compliance teams

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