Changelog

Release history for Watchflare Hub and Agent.

Hub and Agent share a single version number and are released together. Full release notes, signed binaries, and archives are published on GitHub Releases.

v0.33.1 — 2025-04-25

Bug fixes

Fixed SSE connection leak on host detail page — connections are now reused instead of duplicated on navigation
Added breadcrumb navigation on the host detail page (Hosts › hostname)
Updated repository URLs to watchflare-io organisation

v0.33.0 — 2025-04-19

New features

Agent version via SSE — the agent version is now broadcast on the first heartbeat and displayed live in the host detail header, no page refresh required
Automatic agent updates (Linux) — self-update via systemd path unit: the Hub dispatches an update command to the agent, which downloads and applies the new binary without manual intervention

v0.32.1 — 2025-04-19

Bug fixes

SMTP_ENCRYPTION_KEY is now required at startup — the Hub exits with a clear error instead of silently failing when SMTP credentials cannot be decrypted

v0.32.0 — 2025-04-19

New features

HTTPS auto-detection — the Secure cookie flag is now set automatically based on the request context (direct TLS or X-Forwarded-Proto: https from a trusted proxy), replacing the old ENV=production heuristic
Extended system metrics — iowait %, steal %, swap used/total, process count, and host info (CPU model, core counts, clock speed) are now collected and displayed
Global packages view — new /packages page showing a deduplicated package inventory across all hosts, with filters and outdated counts
Per-host SSE filtering — the host detail page subscribes to a host-specific SSE stream instead of the full broadcast, reducing client-side processing
Outdated package detection — packages with available updates and security fixes are flagged; supported managers: apt, dnf, pacman, apk, Homebrew, npm, pnpm, pip, gem, Composer
log_level config field — agent log verbosity can now be set to debug, info, warn, or error in agent.conf
Server-side pagination for the packages endpoint

Bug fixes

Fixed WAL corruption: the WAL is now reset instead of blocking metrics when it contains invalid records
Fixed pnpm, yarn, pipx, composer, flatpak collectors (path redirects, format changes, D-Bus availability)
Fixed Cargo collector (CARGO_HOME redirect for unprivileged service user)

v0.31.0 — 2025-04-11

New features

Command dispatch via heartbeat — the Hub can dispatch commands to agents through HeartbeatResponse: force package collection, trigger agent update
Add host modal — the add host flow is now a modal on the hosts page instead of a separate page

Breaking changes

Renamed Server → Host throughout the Hub, frontend, and agent (API paths, SSE events, config keys). Existing agents must be re-registered or have their config updated if upgrading from v0.30.

v0.30.0 — 2025-04-10

New features

Alert system — threshold-based alerts for CPU, memory, disk, load average, and temperature, plus host offline notifications
Email notifications — SMTP configuration in Settings → Notifications with test email support; AES-256-GCM encrypted password storage
Incident history — alert incidents are stored with start/end time and triggering value; visible on each host detail page
Incident resolution emails — a second notification is sent when an alert resolves
Default alert rules — global defaults apply to all hosts; per-host rules override them

v0.29.2 — 2025-03-31

Bug fixes

Fixed agent self-update on Linux systems with noexec /tmp mounts
Fixed UPlotChart ResizeObserver race conditions and memory leaks

v0.29.1 — 2025-03-31

Bug fixes

Added COOKIE_SECURE environment variable to decouple cookie security from the ENV=production heuristic

v0.29.0 — 2025-03-31

New features

Per-sensor temperature collection with multi-curve charts
User display preferences: time format (12h/24h), temperature unit (°C/°F), gauge thresholds

Security & bug fixes

Comprehensive security and code quality audit across the entire codebase (agent and Hub)
Fixed agent UUID hijacking prevention during re-registration
Added LimitReader guards throughout the agent to bound memory usage
Exec timeout enforcement on all external command calls in the agent

v0.28.1 — 2025-03-22

Bug fixes

Fixed Linux agent install issues (ETXTBSY errors and silent service failures)
Fixed agent status shown as offline on initial registration
Fixed theme preference not applied consistently during registration

v0.28.0 — 2025-03-21

New features

Homebrew distribution — the agent is now available via brew install watchflare-agent (tap: watchflare-io/watchflare)
Agent version display — the running agent version is shown on host list and detail pages with an update badge when a newer release is available
Username — users can set a display username in profile settings

v0.27.5 — 2025-03-21

New features

Vulnerability detection for installed packages
Package inventory UI improvements
Mobile host card redesign
Dashboard search and filter

v0.27.4 — 2025-03-19

New features

Additional dashboard columns: Load Average, Network I/O, Temperature
Actions dropdown in host table replaced with inline controls

Bug fixes

SSE broadcast optimization for metrics charts

v0.27.3 — 2025-03-16

Bug fixes

Host detail header redesign with improved mobile charts
Agent tick alignment corrections

v0.27.2 — 2025-03-15

Bug fixes

Agent metrics aligned to wall clock boundaries for consistency

v0.27.1 — 2025-03-15

Bug fixes

Comprehensive codebase audit (42 bugs addressed)
Chart gap detection threshold improvements

v0.27.0 — 2025-03-14

New features

CI/CD with GoReleaser — automated release pipeline producing signed binaries and archives for Linux (amd64/arm64) and macOS (amd64/arm64)
Docker container metrics — per-container CPU, memory, and network I/O via the Docker API socket (opt-in with --containers)
uPlot charts — all metric charts migrated from SVG (layerchart) to Canvas (uPlot), fixing Firefox OOM on host detail pages with many series
Clock desync detection — the gRPC interceptor detects agent clock drift and shows a warning banner on the host detail page
Distroless Docker image — production Hub container uses a minimal Debian-based distroless image

Note

Versions prior to v0.27.0 were internal development releases. The public release history starts at v0.27.0.