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Seq

@datalust.co

The self-hosted search, analysis, and alerting server built for structured logs and traces. Also available at social.datalust.co/@seq. 🇦🇺

Posts Replies Media

Seq @datalust.co · 21/07/2026

Metrics support is officially ready! Download the Seq 2026.1 MSI, or pull datalust/seq:latest to upgrade. Read the release announcement at: datalust.co/blog/seq-202...

Seq 2026.1 Metrics screen: a grid of metric charts showing the OpenTelemetry demo data set. Two of the charts are "pinned" to the top of the grid. Charts are grouped by resource and scope. Tool windows show an editor for the current view, and a list of metric dimensions.

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Seq @datalust.co · 17/07/2026

Identical log/trace data sets in Seq 2025.2 and 2026.1, 64% lower on-disk footprint thanks to an all-new compression implementation! RTM in just a few days, now... 😁

Seq 2025.2 showing 1716 MB combined buffered and indexed events.

Seq 2026.1 showing 671 MB combined buffered and indexed events.

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Seq @datalust.co · 08/06/2026

Seq.App.Slack now includes more alert detail inline 😎 Update to v2.0.1 of the package (or later) in Settings > Apps.

A screenshot of an alert notification "Health Check Failures" in Slack. The notification includes "Explore detected results and contributing events in Seq", a "Results" block with target URL, status code, and count, and a "Contributing Events" heading with two HTTP error log entries shown.

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Seq @datalust.co · 28/05/2026

Seq 2026.1 previews are rolling out! Today's fresh build includes percentiles over metric histograms, `ContributingEventsUrl` in alert notifications, and a bunch of other updates. datalust/seq:preview, or datalust.co/download 😎

A screenshot of a line chart for Npgsql db.client.connection.npgsql.create_time.

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Seq @datalust.co · 30/01/2026

Tip of the day: sleuthing for slow spans? Combine the @Elapsed built-in with duration expressions and 💥!

The Seq Events screen showing the search expression @Elapsed > 1m.

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Seq @datalust.co · 17/12/2025

This year we've been in the lucky intersection of features most requested by Seq users, and deeply interesting new tech to design and build. Heading into 2026 we have a lot to unpack! @liammclennan.bsky.social started with an overview of column stores at @dddbrisbane.bsky.social this month.

Attendees and presenter in front of a slide titled "Column Oriented Database Internals"

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Seq @datalust.co · 16/12/2025

The Seq team rounded out 2025 at DDD Adelaide and then DDD Brisbane a month later, both fantastic community-oriented conferences. Here's Ashley Mannix sharing his experiences shepherding Seq's high-performance #rustlang codebase through back-to-back years of rapid growth.

Photograph of a busy lecture theater at DDD Brisbane with the presenter gesturing towards overhead slide projection.

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Seq @datalust.co · 24/07/2025

Seq Forwarder has moved! Seq's own handy little store-and-forward ingestion proxy has been rewritten as the `seqcli forwarder` command group: github.com/datalust/seq... The original Seq Forwarder repository has been archived, but past releases will remain available there.

A screenshot of the archived datalust/seq-forwarder repository on GitHub.

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Seq @datalust.co · 02/06/2025

Today's tiny quality-of-life improvement: If you regularly use the "From now" date range option, grab the latest 2025.1 patch and try Ctrl+Space N 💡 github.com/datalust/seq...

The Seq command palette, with "ran" typed in the filter box. The list shows the Custom Range, From Now, Next Range, Previous Range, and To Now shortcuts.

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Seq @datalust.co · 29/05/2025

Fans of the "classic" light theme, we hear you! ❤️ The latest 2025.1 build brings this back; update, jump into your user preferences, and select "Classic Light" from the theme drop-down 😊

The Seq 2025.1 Events screen, in the "classic" light theme.

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Seq @datalust.co · 28/05/2025

The nifty color palette we adopted here is based on Matteo Niccoli's perceptual rainbow palette, mycartablog.com/2013/02/21/p...

A Seq screenshot showing a heatmap of row counts over time.

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Seq @datalust.co · 21/05/2025

A peek into the delicate machinery that adapts a running Seq node to its role in the cluster: blog.datalust.co/leader-elect...

The components responsible for tracking node state and orchestrating transitions. A consensus module interacts with the external cluster state database, feeding triggers into the node state machine. Simultaneously, a clock component fires triggers in the state machine too. The state machine sends commands to a command queue, which is observed by a command queue monitor. The command dispatcher pulls commands from the queue, and orchestrates the storage engine and application components.

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Seq @datalust.co · 21/05/2025

Ctrl-K, or Cmd-K on macOS, puts a stack of Seq features in reach without picking up a mouse ✨ This is a Seq update not to miss! Check all of the details at blog.datalust.co/announcing-s...

The Seq Events screen, showing the command palette dialog as an overlay. The dialog comprises a search box and a list of matching commands. The search box has been filled with the word "signal", and the command list shows matches including "Add to Signal", "Clear All", "Exclude", "Save", and "Signals", each with help text. Beside the matching command names are the shortcut key sequences for each command, for example Add to Signal is Ctrl Space, A.

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Seq @datalust.co · 30/04/2025

We're proud to sit alongside these great companies supporting #NDCMelbourne 2025! Hope you're having a blast, Melburnians! 👋

Sponsor logos on a poster at the event: Auth0, Bunnings Warehouse, Elastic, Particular Software, REA Group, SafeStack, Seq, TinaCMS, YakShaver

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