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CHANGELOG · UPDATED 2026-05-25

Every shipped thing.

User-visible product changes — what shipped, when, and what it means for your workflow. Internal refactors and dev-only fixes are kept out so the signal stays high.

FILTER

May 2026

NEWINTEGRATIONv2026.5.25 · May 25, 2026

Slack integration — full conversational workflow

Mention @Grain in any channel to spawn tasks, get quick answers, plan from threads, or schedule reminders. One-click OAuth install — no bot token paste, no scope picker, no signing-secret hunt.

  • One-click OAuth — Settings → Integrations → Slack → Connect → Allow. Bot token, signing secret, notification channel and deep integration all activate in a single round-trip.
  • @Grain quick replies — short questions answered inline by gpt-4o-mini in ~2 seconds (~$0.0001 per reply).
  • Routing confirmation card — for any "create a task" mention, Grain asks: Quick reply or Send to agent. You pick the right tier per request.
  • Plan from thread — @Grain plan a task from this thread reads the full thread, proposes a structured breakdown, posts a Block Kit card with ✅/❌ buttons. Approval creates N tasks atomically.
  • Scheduled reminders — @Grain remind me Tuesday morning to follow up with Acme parses natural-language time and schedules via a per-minute cron. One-off, recurring, DM-private all supported.
  • 12 Slack-native task tools — agents can post_message, update_message, react_to_message, dm_user, schedule_message, list_channels, get_user_profile, get_permalink, and more.
  • Live progress streaming — the original Slack message updates in place via chat.update. No thread spam: one card that morphs Starting → Researching → Drafted ✅.
  • Opt-in channel monitoring — tick #bugs or #support; gpt-4o-mini classifies every top-level message and proposes "File this in Linear?" cards. Default OFF per channel.
  • Strict @mention policy — Grain stays silent in channels unless explicitly tagged. No autonomous chatter.
Slack
GitHub
Linear
Notion
HubSpot
Stripe
IMPROVEDDESIGNv2026.5.25 · May 25, 2026

Settings & integrations UX overhaul

Native integrations (Slack, GitHub, Linear, Notion, HubSpot, Stripe) now sit at the top of Settings → Integrations, before the long-tail Composio catalog. Every tile shows inline Connect / Manage / Disconnect with a confirmation dialog. Disconnect is a full teardown: OAuth token revoked, deep integration disabled, notifications stopped — one click.

  • Native integrations hoisted above the search bar — reads as "6 things Grain built" + an optional second tier of 3,200+ community apps.
  • Settings sub-tabs deep-link via URL — share app.grain.sh/settings/integrations and the page lands on the right sub-tab.
  • MCP catalog deduped — community @modelcontextprotocol/server-slack tile removed; native Slack OAuth covers the same surface without credential paste.
CHANGEDv2026.5.25 · May 25, 2026

Clean URLs everywhere

app.grain.sh/overview instead of app.grain.sh/#overview. Every URL is now path-based, copy-pasteable, and looks professional. Old hash URLs in Slack messages, email, bookmarks continue to work — they auto-migrate to clean paths on first load.

NEWMODELv2026.5.25 · May 25, 2026

Multi-LLM model picker — gpt-4o-mini default for Slack

OpenAI gpt-4o-mini is the new default for Slack quick-answer, plan-from-thread, reminder parsing, and the monitored-channel classifier. ~10× cheaper than Anthropic Haiku for these bounded patterns with no quality difference. Per-org BYO keys in Settings → AI still take precedence.

gpt-4o-mini
Sonnet 4.6
Gemini 2.5 Pro
Haiku 4.5
IMPROVEDDESIGNv0.7.2 · May 24, 2026

Desktop app v0.7.2 — UI redesign, code-signed, notarized

Full Grain UI redesign — cream + ink + coral palette, Inter Tight + JetBrains Mono fonts, sticker-style chips, offset-shadow buttons. Every page restyled for visual consistency.

  • macOS DMG code-signed with Macrodeep Developer ID and notarized + stapled by Apple. No more "Apple could not verify…" warnings.
  • Sign-out menu in the sidebar — click your user card → Settings · Billing · Sign out.
  • Cream / ink backgrounds consistent across every page (Overview, Tasks, Agents, Fleet, Briefs, Settings, Integrations).
NEWv2026.5.24 · May 24, 2026

Agent Fleet — shop-floor schematic

A new visual page at app.grain.sh/fleet showing every agent in your workspace as a live node on a schematic. Status dots, busy/idle indicators, click-to-open agent details, real-time updates as state changes. Replaces the old static agent grid.

AF
NEWv2026.5.24 · May 24, 2026

Briefs panel — every artifact in one library

Artifact-style outputs from agents (dashboards, reports, battlecards, memos) collected in one library at app.grain.sh/briefs. Click any artifact in the Overview dispatch table to open it.

brief · dashboard · memo
NEWINTEGRATIONv2026.5.24 · May 24, 2026

Composio long-tail — 3,200+ apps available

Toggle on toolkits like Mailchimp, Trello, Calendly, Zoho in Settings → Integrations and agents can use them. Authorization happens at app.composio.dev/apps.

NEWINTEGRATIONv2026.5.23 · May 22–23, 2026

Slack channel monitoring → Linear

Drop the bot in #bugs or #support. Every message gets classified; looks-like-a-bug messages get a "File this in Linear?" proposal card. Approve → Linear issue created with title, body, priority, type, link back to the Slack thread.

NEWv2026.5.23 · May 22–23, 2026

Scheduled automations

Create a recurring job: "Every weekday 9am, ask Pulse to summarize yesterday's revenue + post to #leadership." Cron-driven via Convex, supports natural-language schedules, fires reliably.

IMPROVEDv2026.5.20 · May 20, 2026

Slack thread polish

Three quality-of-life upgrades to thread behavior.

  • Live progress card — chat.update morphs one message instead of spamming the thread.
  • Scoped agent mentions — @Grain ATLAS draft Q3 review routes directly to a specific named agent.
  • Thread replies as task chat — reply in the Grain-started thread, your text appends to the agent's running task.
NEWAGENTv2026.5.17 · May 17, 2026

Continuous + self-improving agents

Five phases of the persistent-agent runtime shipped together.

  • Auto-curated memory — agents remember decisions across runs, semantically recall relevant context at task start.
  • Autonomous skill creation — when an agent repeats a procedure 3+ times successfully, it proposes a new skill manifest for human review.
  • SOUL.md personas — global personality file per agent, editable from Settings → Agents → Persona.
  • Natural-language scheduling — "Have Pulse send a weekly metrics summary every Friday 5pm to #leadership" → creates a recurring automation.
  • Outcome → persona refinement — weekly, each agent's persona gets a refinement diff proposed based on the last 7 days of feedback.
NEWv2026.5.3 · May 2–3, 2026

Grain Frames — the canonical artifact format

Block-based artifact system. Agents produce branded shareable outputs: dashboards, reports, memos, battlecards. PDF export, share tokens, embeddable widgets. Every other surface (Slack file deliverable, email attachment, web embed) renders from the same Frame source.

brief · dashboard · memo

April 2026

IMPROVEDDESIGNv2026.5.2 · Apr 29 – May 2, 2026

Hyperagent-inspired UX (phases 0–4)

A ground-up rework of the workspace IA and primary surfaces.

  • Sidebar IA — + New thread, Search, pinned Agents, Threads with live status descriptors, Projects, footer for Asset library / Integrations / Help.
  • Thread + Frame split view — left pane streams typed reasoning / tool-call / file-write cards, right pane renders the live Frame artifact.
  • Skill cards in thread — when an agent loads a skill, an inline card shows name + description + tag chips.
  • Command Center — replaces the Agents tab. Dense ops-style roster (status dot, name, runs, avg score, trend sparkline, cost, last active) plus a stats strip.
  • Empty states do work — a new thread shows the composer + 3 suggested prompts instead of dashboards.

March 2026

CHANGEDv2026.3.27 · Mar 27, 2026

SwarmOS → Grain rebrand

Product renamed from SwarmOS to Grain. Domain moved from app.grain.sh to app.grain.sh. Visual identity refresh (logo, colors, typography). Every old swarmos.tech URL 301-redirects to grain.sh.

Earlier

NEWv2026.Q1 · Q1 2026

Production launch — the foundations

Convex backend, Tauri desktop app, multi-agent task pipeline, 10 named agents (Scout, Closer, Shield, Spark, Atlas, Pulse, Beacon, Forge, Sentinel, Scribe), execution backends (Claude Code, Codex, Gemini, Superagent), per-agent personas, skill library, deep integrations.

Grain

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