chmonitor v0.3.4 — Tools, Schema Compare, workspace roles

After four days of agents working day and night — 106 pull requests and 267 comments on GitHub — chmonitor v0.3.4 is the tag for everything that landed on main after v0.3.3. Tools, workspace roles, Schema Compare, Settings Diff, TTL inventory, and self-hosted licenses are in this release.

Every path below opens the live demo: dash.chmonitor.dev.

Tools menuSQL Console, Explorer, Explain, Advisor, Chart Builder, Schema Compare, Settings Diff — last group in Main.
Workspace rolesFull / DBA / Engineer / SRE. Hide and pin pages in this browser.
Schema CompareTable DDL across hosts or replica nodes. Copy-only plan — never applied.
Settings Diffsystem.settings and merge_tree_settings, pair or matrix. All matched when nothing differs.
TTL inventoryEvery MergeTree table's TTL and PARTITION BY, plus part-health charts.
LicensesSelf-hosted host-count licenses. Invoice, not a key in the binary.

What shipped

Tools and workspace

Tools sidebar group: SQL Console, Data Explorer, Explain, Advisor, Chart Builder, Schema Compare, Settings Diff. Last group in Main. Postgres hosts do not see it.
Workspace roles in Settings: Full, DBA, Engineer, SRE. Pick a role and the Navigation tree remounts collapsed.
Customize the sidebar from the Settings menu tree.
Hover Hide next to Pin on a leaf. Undo toast. Restore in Settings → Workspace → Navigation.
Longer write-up: A DBA, an SRE, and an engineer should not share a sidebar.

Schema Compare and Settings Diff

DBA workflows is the map.

Schema Compare diffs CREATE TABLE across saved connections or replica nodes. One host is not enough — add a second, or compare nodes on this cluster. The plan is copy-only.
Settings Diff diffs system.settings and system.merge_tree_settings. Filter to differences, or to values changed from default. When every setting matches: All matched.
Advisor findings can emit a local statement plus an ON CLUSTER variant when topology is known. Try Advisor.

Cluster ops

TTL and partition health — inventory of MergeTree TTL and PARTITION BY, with partition and part counts. Tables without TTL still appear. Recommend-only: this page does not run ALTER TTL or DROP PARTITION.
Schema lint on Explorer table Overview (same recommend-only engine as Advisor).
What’s new dialog next to Settings — notes from docs/whats-new/ for each tagged version. Auto-opens once after an upgrade.

Agent

Cloud demo guests can chat (still under the v0.3.3 guest cap).
Keyless Firecrawl MCP is connected by default (CHM_AGENT_FIRECRAWL_MCP, opt-out).
Follow-up suggestions are tool-aware and sit on the composer.
Chat messages, tool cards, and markdown rendering are tighter. The tool loop stops at 16 steps.

Licenses and CLI

Paid product is a self-hosted commercial license sized by host count, not a Cloud seat. No key in the binary. Details: We’re selling self-hosted licenses.
Checkout asks for company details before Polar charges.
Instance ping can send CHM_LICENSE_KEY.
CLI: chm upgrade (ranks chm-v* tags by semver).

Upgrade

Self-hosters: pull the image you already run.

docker pull ghcr.io/chmonitor/chmonitor:v0.3.4

Cloud (dash.chmonitor.dev) already has this. Nothing to migrate.

The full changelog is in the GitHub release.