Changelog

What’s new in v1.0.0

After six months of intensive beta testing with engineers from over 20 countries, ChainSolve 1.0.0 marks our General Availability milestone. This release represents a stable, production-ready foundation you can build on with confidence.

Production-grade compute API The Compute API now guarantees 99.95% uptime under our SLA, backed by redundant infrastructure across three availability zones. Every endpoint has been load-tested to 10,000 concurrent requests.

New features

• 150 built-in blocks covering maths, data transformation, I/O, control flow, ML inference, and more
• Custom block authoring — package your own TypeScript or Python logic as a reusable block
• Project workspaces — organise blocks into named projects with role-based sharing
• Visual canvas — drag-and-drop block editor with real-time collaboration
• REST & GraphQL APIs — full programmatic access to all platform features
• Webhooks — trigger external systems when a computation completes or fails
• Audit logging — every action recorded with actor, timestamp, and diff

Performance improvements

• Canvas renders up to 10× faster on graphs with more than 500 nodes
• API cold-start latency reduced from 850 ms to under 50 ms
• Computation queuing now uses a priority scheduler — paid tiers get first allocation

Bug fixes

• Fixed intermittent WebSocket disconnections on Safari 17
• Corrected floating-point rounding in the Math.Round block when precision = 0
• Resolved a race condition in the collaboration cursor sync

Migration guide

1. Update your base URL from /v0/ to /v1/
2. Update response parsing: response.result → response.data.result
3. Re-install the JavaScript SDK: npm install @chainsolve/sdk@^1.0.0
4. Review the full migration guide for edge cases

Public Beta — open to everyone

Until today, ChainSolve was invite-only. Starting now, anyone can sign up for a free account at chainsolve.co.uk and start building immediately.

Free tier — no credit card The Free plan gives you 3 projects, 5 canvases per project, 50 blocks per canvas, and 1,000 monthly computations. No credit card is required to sign up.

New in this release

• Onboarding wizard — interactive walkthrough that guides new users to their first working pipeline in under 3 minutes
• Template gallery — 24 ready-made pipeline templates across data processing, ML preprocessing, finance, and IoT categories
• Export to Python / JavaScript — generate runnable code from any canvas with one click
• Shared canvases — invite collaborators by email with view or edit permissions
• Dark mode — full theme toggle with system preference detection
• Keyboard shortcuts — 35 shortcuts for power users; press ? for the reference card

Platform improvements

• Real-time cursor positions now visible for all collaborators on a shared canvas
• Block search now uses fuzzy matching and remembers your recently used blocks
• Computation logs streaming in real-time via Server-Sent Events
• API rate limits raised: Free plan 60 req/min, Pro plan 600 req/min

Bug fixes

• Fixed canvas scroll inertia feeling sluggish on trackpads with macOS 14
• Resolved incorrect block output type inference when a Filter block feeds into a Map block
• Fixed email verification link expiry not being extended on re-send

AI/ML Block Pack

ChainSolve’s biggest block update to date. The new AI/ML pack brings 28 production-ready blocks for machine learning workflows, with secure API key management built in.

28 new AI/ML blocks From text embeddings to image classification, every AI block is containerised with a warm-start execution model so your first inference takes milliseconds, not seconds.

New blocks

Text & Language

• Embed.Text — generate vector embeddings using OpenAI text-embedding-3-small
• LLM.Prompt — send structured prompts to GPT-4o, Claude 3.5, or Gemini 1.5
• LLM.Extract — structured data extraction with JSON schema output
• Classify.Text — zero-shot classification using configurable label sets
• Summarise — automatic abstractive summarisation with length control
• Translate — machine translation across 50 languages

Numeric / Tabular

• Regression.Linear — train and infer linear/polynomial regression
• Regression.XGBoost — gradient-boosted trees for structured data
• Classify.RandomForest — ensemble classification with feature importance output
• Cluster.KMeans — k-means clustering with elbow-method guidance
• Anomaly.IsolationForest — unsupervised anomaly detection

Image

• Image.Resize, Image.Crop, Image.Normalise
• Classify.Image — ResNet-50 zero-shot classification
• Detect.Objects — YOLOv8 bounding box detection
• Embed.Image — CLIP image embeddings for similarity search

Utilities

• API.Key — secure storage and injection of API keys (never logged)
• Vector.Store — in-memory vector store with cosine similarity search
• Vector.Search — KNN search over stored embeddings
• Model.Load / Model.Save — persist trained models between runs

New features

• Secrets manager — store API keys once, reference them by name in any API.Key block
• Batch execution — run a canvas over an array of inputs in parallel; results aggregated automatically
• Execution profiling — per-block timing breakdown in the computation log

Bug fixes

• Fixed Map block failing silently when input array was empty
• Corrected Date.Format output when timezone offset was negative
• Resolved canvas zoom reset on double-tap on iOS Safari

Team Collaboration Alpha

The most-requested feature since launch — real-time collaboration — is now in alpha for all Pro plan users. Multiple people can edit the same canvas simultaneously with conflict-free merging powered by CRDTs.

Conflict-free real-time editing Built on Yjs CRDTs, every edit is merged deterministically regardless of network latency. No more “someone else is editing this” locks — everyone works freely and changes reconcile automatically.

New features

• Live cursors — see every collaborator’s cursor with their name and avatar
• Presence avatars — avatar stack in the top bar shows who is currently viewing
• Comment threads — pin threaded comments to any block or canvas position
• Comment notifications — email digest for unread comment mentions
• Team workspaces — create a team, invite members, and share projects across the team
• Role system — Owner, Admin, Editor, Viewer roles with granular permission sets
• Activity feed — per-project log of every edit, comment, and permission change

Platform improvements

• Connection state indicator with auto-reconnect on network loss
• Offline queue — edits made while offline are synced when connection restores
• Canvas history goes back 30 days; restore any prior state with one click

Bug fixes

• Fixed block group selection not honoring locked blocks
• Resolved duplicate connection lines appearing after undo/redo
• Fixed team invitation email delivery to corporate domains with strict SPF policies

Performance & Developer Experience

0.7.0 is a developer-focused release that dramatically improves the day-to-day experience of building with ChainSolve.

4× faster canvas rendering A complete rewrite of the canvas renderer using WebGL 2 brings 60 fps smooth scrolling even on canvases with 1,000+ blocks. The previous Canvas 2D renderer topped out at around 200 blocks before frame drops appeared.

New features

• ChainSolve CLI — npx chainsolve lets you run canvases, manage blocks, and push/pull projects from the terminal
• Local execution mode — run computations entirely on your machine during development; no network required
• TypeScript SDK — @chainsolve/sdk with full generic type inference for block inputs and outputs
• OpenAPI spec — downloadable OpenAPI 3.1 spec at /api/openapi.json; import into Postman, Insomnia, or generate client code
• Environment variables — per-project env vars available to all blocks at runtime; stored encrypted in Cloudflare KV

Performance improvements

• Canvas renderer rewritten in WebGL 2: 60 fps at 1,000 nodes (was ~15 fps)
• Block graph serialisation 8× faster using MessagePack instead of JSON
• API response times improved by 35% after database query optimisation
• Build times for custom block bundles reduced by 60% with esbuild upgrade

Developer experience

• Error messages now include a code field and a documentation link
• Block validation errors highlight the offending port in the canvas
• Computation logs searchable and filterable by block ID, log level, and timestamp

Bug fixes

• Fixed infinite render loop when a block’s output connected back to its own input
• Resolved SDK createClient() throwing on Node.js 18 without --experimental-fetch
• Fixed canvas minimap rendering blurry on HiDPI displays