Changelog

All notable changes to Cetacean will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[Unreleased]

[0.5.0] - 2026-03-16

Added

• Tasks list page (the “Failed Tasks” card on the homepage no longer 404s)
• Click-to-isolate on chart legend items in stack drill-down charts
• Keyboard shortcut tooltips on navigation links (hover to discover shortcuts)

Changed

• Lazy-load all pages and split heavy vendor libraries (Chart.js, topology) into separate chunks — initial load reduced from 2.3 MB to ~360 KB

Fixed

• Log viewer “has more” indicator inaccurate when filtering by stream (stdout/stderr)
• List page item counts not updating on real-time add/remove events
• Race condition when multiple metrics streams connect simultaneously
• Stale fetch requests not cancelled when navigating away from detail/search pages
• Ghost stacks appearing after all services removed but configs/secrets remain
• Metrics charts not reconnecting SSE stream after tab becomes visible again

[0.4.0] - 2026-03-16

Added

• Live-updating charts via SSE streaming (no more manual refresh for recent time ranges)
• Range picker with quick presets and custom date-time selection

Changed

• Replace auto-refresh toggle with streaming play/pause control

Fixed

• Click-to-isolate and double-click drill-down racing on chart interactions
• Doughnut chart sizing on homepage

[0.3.0] - 2026-03-16

Added

• TOML config file and CLI flags as alternative to environment variables
• healthcheck subcommand for container health checks

Fixed

• Simplify disk usage chart to single ring (two-ring layout was confusing; reclaimable info moved to tooltip)

[0.2.0] - 2026-03-15

Added

• Migrate from uPlot to Chart.js for all charting
• CVD-safe color palette with theme integration
• Interactive charts: linked crosshairs, click-to-isolate, brush-to-zoom
• Custom date-time range picker with quick presets
• Stacked area toggle on time series charts
• Stack-based drill-down on cluster overview
• Resource allocation bar chart on service detail
• Mock chart data in dev mode when Prometheus is unavailable

Fixed

• Search input no longer loses focus on refetch
• List pages no longer flash loading skeleton on search/sort

[0.1.11] - 2026-03-14

Fixed

• Log fetches for multi-replica services reduced from ~10s to ~2s (idle timeout on stream parser)

[0.1.10] - 2026-03-14

Fixed

• Frontend test failures after monitoring status hook was added

[0.1.9] - 2026-03-14

Fixed

• Stale browser-cached responses (added Cache-Control headers)
• Data race in cross-reference lookups under concurrent reads
• Dockerfile healthcheck path
• Docker Compose external network name for monitoring stack

Security

• Bump undici

[0.1.8] - 2026-03-14

Added

• Per-task CPU/memory sparklines on service, node, and task pages
• Metrics panels on cluster overview, node list, and service list
• Leader badge, availability, and address columns on node table
• Ports column on service table

Fixed

• Resource gauges crash when no resource limit is set
• Page titles all showed “frontend” instead of the resource name
• Tables clip on small viewports

[0.1.7] - 2026-03-13

Fixed

• Double borders on deploy config detail panels
• Ghost stacks appearing from orphaned volumes

[0.1.6] - 2026-03-13

Fixed

• Duplicate edges in logical topology view
• Overlapping nodes in physical topology view
• Stack health incorrectly counting historical task failures

[0.1.5] - 2026-03-13

Fixed

• Node metrics showing wrong values in overlay network deployments (now resolves by hostname instead of IP)

[0.1.4] - 2026-03-13

Fixed

• Service replica counts inflated by shutdown tasks
• Log viewer making unnecessary polling requests
• Spurious task change events in activity feed
• Running tasks not sorting first in task lists
• Task detail service link not clickable

[0.1.3] - 2026-03-13

Fixed

• Dockerfile naming and base image updates for release builds

[0.1.2] - 2026-03-13

Fixed

• SSE test data race under -race flag
• CI compatibility with Go 1.26 and latest GitHub Actions

Security

• Bump hono to 4.12.7 (prototype pollution CVE)

[0.1.1] - 2026-03-13

Fixed

• CI and dependency fixes

[0.1.0] - 2026-03-12

Added

• Per-resource SSE streaming on all list and detail endpoints
• OpenAPI 3.1 spec with Scalar API playground at /api
• JSON-LD metadata and RFC 9457 error responses
• Content negotiation via Accept header or .json/.html extension
• ETag conditional caching with 304 Not Modified
• Global cross-resource search with Cmd+K command palette
• Network topology view (logical and physical)
• Stack detail pages with member resources
• Log viewer with live streaming, regex search, JSON formatting
• Monitoring auto-detection (Prometheus, cAdvisor, node-exporter)
• Node resource gauges and service/stack metrics panels
• Disk snapshot persistence for instant dashboard on restart
• Expression-based filtering on all list endpoints
• Virtual scrolling for large tables
• Activity feed with recent resource changes
• Multi-platform Docker images (amd64, arm64) with SBOM and provenance

Security

• Secret values never exposed in API responses
• Prometheus proxy restricted to query endpoints
• Connection limits: 256 SSE clients, 128 concurrent log streams