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NO. 29ATHENAPRODUCT CHANGELOG

Latest shipv4.2.0

Every release,drawn as a line.

Meridian is an analytics engine for teams that ship weekly. This is the record of every change — what we built, why it matters, and the numbers behind it. The spine draws itself as you scroll; each release is dated, signed, and honest about what broke.

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126
Releases shippedsince v3.0
9
Median days between shipsrolling 90d
100%
Releases with noteshuman-written
<1s
Median query timev4 engine
  1. v4.2.0

    Streaming exports & saved cohorts

    Pipe live event streams straight to your warehouse and pin the cohorts your team checks every morning.

    • NewStreaming CSV / Parquet exports with backpressure-aware chunking.
    • NewSaved cohorts now sync across the whole workspace.
    • ImprovedQuery planner reuses cached partitions for repeat ranges.
    • FixedTimezone drift on month-boundary rollups.
    Export throughput+212%
    Dashboard p95-38%
    Open streaming exports
  2. v4.1.0

    Funnel breakdowns by any property

    Split any funnel step by a property without re-running the whole report. The breakdown computes inline.

    • NewInline property breakdowns on every funnel step.
    • ImprovedFunnel results stream in step-by-step instead of all at once.
    • ImprovedSticky table headers on long breakdown tables.
    • FixedOff-by-one on the final conversion step for same-day events.
    Time to first row-71%
    Build a funnel breakdown
  3. v4.0.0major

    Meridian 4 — the query engine rewrite

    A columnar engine rebuilt from the storage layer up. Most reports return in well under a second on a year of data.

    • NewNew columnar query engine with vectorised aggregation.
    • NewPer-project data retention controls in settings.
    • ImprovedCharts re-render incrementally as data arrives.
    • FixedMemory pressure on very wide group-by queries.
    Median query time-83%
    Storage footprint-46%
    Concurrent queries+5×
    Run a query on v4
  4. v3.7.2

    Alert reliability & quieter digests

    Anomaly alerts now debounce noisy spikes, and the weekly digest only ships when something actually moved.

    • ImprovedAdaptive debounce on threshold alerts.
    • ImprovedWeekly digest suppresses flat weeks automatically.
    • FixedDuplicate Slack alerts during deploy windows.
    • FixedAlert preview rendered the wrong timezone.
    Alert noise-64%
  5. v3.7.0

    Boards you can actually share

    Public read-only board links, scheduled PDF snapshots, and a tidier embed that respects your theme.

    • NewPublic, read-only board links with optional passcodes.
    • NewScheduled board snapshots delivered as PDF.
    • ImprovedEmbeds inherit light / dark theme from the host page.
    • FixedBoard filters were lost on the first share open.
  6. v3.6.0

    Self-serve workspace roles

    Granular roles, SCIM-ready group sync, and an audit log you can filter down to a single key.

    • NewCustom roles with per-resource permissions.
    • NewAudit log filtering by actor, key, and resource.
    • ImprovedFaster member search on large workspaces.
    • FixedInvite emails occasionally pointed at the wrong region.
    Member search-91%
    Set up custom roles

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