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Changelog

All notable changes to NextCalc Pro are documented in this file.

1.2.1 - 2026-03-04

Performance

  • Dynamic-import SymbolicPanel (~300KB deferred) via next/dynamic + ssr: false on /symbolic route (43d4893)
  • Replace Framer Motion orb animations with CSS @keyframes on /symbolic (compositor thread, zero main-thread cost) (43d4893)
  • Replace all m.* entry animations with plain HTML + CSS animation on /symbolic — removes framer-motion from page chunk entirely (~34KB saved) (43d4893)
  • Add IntersectionObserver gate to TransformerVisualizer requestAnimationFrame loop — pauses 60fps canvas when scrolled out of view (43d4893)
  • Replace Framer Motion pulsing overlays with CSS @keyframes on /algorithms/transformers — eliminates per-frame React reconciliation for 64+ heatmap cells (43d4893)
  • Remove staggered entry delay from 64 heatmap cells in TransformerVisualizer — eliminates 64 separate animation timers (43d4893)
  • Cache KaTeX dynamic import at module level in MathRenderer — avoids redundant async resolution across multiple instances (43d4893)

CI/CD Pipeline

  • Fix 15 API test failures — add missing mocks for hasUpvoted DataLoader, $transaction, invalidateByPrefix, updateMany (2405bb9)
  • Fix 35 web test failures — add m (lazy motion) proxy to framer-motion mock in vitest.setup.ts (2405bb9)
  • Fix 3 export-service test failures — use valid UUID strings for userId in test data (2405bb9)
  • Fix 1 rate-limiter test failure — adjust safety margin assertion (2405bb9)
  • Fix Biome formatting across 170+ files — import organization, line wrapping, JSON formatting (2405bb9)
  • Upgrade CI actions: actions/checkout@v4 → @v6, actions/setup-node@v4 → @v6 (2405bb9)
  • Provide AUTH_SECRET env var in CI build step — NextAuth requires it at build time (3c9e476)
  • Add @graphql-codegen/cli and @graphql-typed-document-node/core devDependencies — required for typecheck (8ef2f61)
  • Update lockfile for typedoc devDependency (ca71852)
  • Update deploy-workers workflow — v6 actions, pnpm-lock.yaml path trigger, workflow_dispatch support (b22cae5)

Comprehensive Audit (from v1.2.0)

  • 78 issues fixed across the entire monorepo (25 HIGH, 47 MEDIUM, 6 LOW)
  • Security: path traversal guard in getTopicPath, GraphQL redirect sanitization, importFromJSON validation
  • Performance: N+1 queries eliminated with hasUpvoted and commentCountByPostId DataLoaders, invalidateByPrefix cache method using SCAN
  • Code quality: Redis SCAN cursor type fix, alternateLocale metadata fix, setTimeout ref type fix, dead state removal
  • Infrastructure: Vitest .spec exclusion fix, transpilePackages cleanup, vacuous E2E test removal

1.2.0 - 2026-03-03

Auth Fixes

  • Fix signIn redirect from /dashboard (404) to / (b441eb3)
  • Fix signOut to use CSRF token — NextAuth v5 requires CSRF on POST to /api/auth/signout (b441eb3)
  • Add onError fallback to navbar avatar — broken provider images fall back to level icon (b441eb3)
  • Sync OAuth provider name and image on every sign-in event (b441eb3)

Forum

  • Add commentCount: Int! field to GraphQL ForumPost type with dedicated resolver (b441eb3)
  • Fix forum post listing and detail pages showing 0 comments (was fetching comments(limit: 0)) (b441eb3)
  • Remove hardcoded fake top contributors, show i18n empty state message (b441eb3)

Level System

  • RS3-style XP formula: sum(floor(i + 300 * 2^(i/7)) / 4) — exponential curve with 100 levels (b441eb3)
  • 10 named tiers: Novice, Apprentice, Journeyman, Adept, Expert, Master, Grandmaster, Legend, Mythic, Transcendent (b441eb3)
  • Admin-only Architect tier (L101) for special users (b441eb3)
  • OKLCH color progression per level, XP formatting helpers (b441eb3)

Level Icons

  • Programmatic crystal SVG component (LevelIcon) with 10 visual tiers of increasing geometric complexity (b441eb3)
  • Pre-generated 103 SVG files via Node.js script (generate-level-icons.ts) (b441eb3)
  • Static SVG loader component (LevelIconStatic) for /icons/levels/level-NNN.svg (b441eb3)
  • 3 L101 special variants: Prismatic Crystal Crown, Cosmic Nexus, Phoenix Crystal (b441eb3)

Profile

  • Extract HeroAvatar component with onError image fallback + level icon default (b441eb3)
  • XP bar with tier name display in profile HeroCard (b441eb3)
  • Level icon as default avatar in navigation and profile when no provider image (b441eb3)

1.1.3 - 2026-03-02

Performance

  • Fix bookmarks store 5x re-render with useShallow selector (9acc00a)
  • Dynamic import KaTeX (~280 KB deferred from initial bundle)
  • Add 4 new DataLoaders eliminating N+1 queries (worksheetsByFolderId, forumPostById, commentById, repliesByParentCommentId)
  • Parallelize sequential DB queries with Promise.all in worksheet, forum, and profile resolvers
  • Typed arrays (Uint8Array/Float64Array) in prime sieve and PageRank
  • Memoize factorial computation in series.ts
  • Batch Canvas2D grid draws into single path operations
  • Fix GPU memory leak: dispose sprite textures/materials in webgl-3d.ts
  • Add loading.tsx skeletons for learn/[topic], problems/[id], share/[code]

Security

  • Timing-safe admin key comparison via SHA-256 + XOR in rate-limiter
  • CORS fallback returns empty string for non-matching origins
  • Recursive query complexity analysis in GraphQL performance-monitoring plugin
  • Remove prettyJSON middleware from all workers (prevents information leakage)

Code Quality

  • Fix all exactOptionalPropertyTypes violations across 3 Cloudflare Workers
  • Fix 50+ pre-existing type errors in CAS service (FactoryFunctionMap, SymbolNode, null checks)
  • Replace React.EventType namespace usage with named imports (6 files)
  • Replace slate-*/gray-* Tailwind classes with semantic tokens (3 pages)
  • Add typecheck scripts to all worker packages
  • Create tsconfig.typecheck.json for standalone web typechecking

Infrastructure

  • Update Turbo 2.8.12 → 2.8.13-canary.8
  • Update CI actions: checkout v4 → v6, setup-node v4 → v6, cache v4 → v5
  • Update compatibility_date to 2026-03-01 for all workers
  • Fix CORS port references 3020 → 3005 across all workers and configs
  • Comprehensive documentation and wiki refresh

1.1.2 - 2026-03-02

Bug Fixes

  • Align API test mocks with security audit changes (IDOR, atomic counters, existence checks) (4c197c0)
  • Add account_id to all 3 worker wrangler.toml configs — fixes Cloudflare /memberships auth error (d5ccb91)
  • Set fail-fast: false in deploy-workers matrix so each worker deploys independently (d5ccb91)

Infrastructure

  • Set CLOUDFLARE_API_TOKEN and CLOUDFLARE_ACCOUNT_ID GitHub secrets for CI worker deploys (d5ccb91)

1.1.1 - 2026-03-01

Bug Fixes

  • Fix deploy-workers workflow: pnpm deploy → pnpm run deploy (pnpm 11 conflict) (e0cabfd)

1.1.0 - 2026-03-01

Dependency Updates

  • Update 90+ packages across all 10 workspace packages (86f3eb3)
  • Next.js 16.2.0-canary.69, React 19.3.0-canary, TypeScript 6.0.0-dev.20260301
  • Prisma 7.5.0-dev.32, Biome 2.4.4, Turborepo 2.8.12
  • Hono 4.12.3, Wrangler 4.68.0, Vitest 4.1.0-beta.5, KaTeX 0.16.33
  • Three.js 0.183.2, jose 6.1.3 (new)

Security

  • JWT signature verification via jose.jwtVerify() for WebSocket auth (86f3eb3)
  • IDOR protection on worksheet queries — enforce ownership, admin-only cross-user access (86f3eb3)
  • Fix unshareWorksheet IDOR — validate shareId belongs to worksheetId (86f3eb3)
  • Fix profile resolver using wrong field (authorId → userId) (86f3eb3)
  • Remove dangerouslySetInnerHTML for plain-text problem statements (86f3eb3)
  • Strip internal error messages from worker responses (86f3eb3)
  • Atomic forum post view counter (replaces read-then-write) (86f3eb3)
  • Add existence check to incrementWorksheetViews (86f3eb3)

Bug Fixes

  • BigInt-safe modPow and lucasLehmer — fixes silent overflow for large inputs (86f3eb3)
  • RSA randomBigIntBelow() helper — fixes crash for key sizes >= 64 bits (86f3eb3)
  • Limits copy-paste bug: v1 → v2 at evaluation boundary (86f3eb3)
  • Infinite recursion guard in algebraic simplification (_skipAlgebraic flag) (86f3eb3)
  • PDE toggleAnimation stale closure fixed with functional state update (86f3eb3)
  • Bifurcation renderer stale gpuParams closure fixed (86f3eb3)

Performance

  • Iterative Tarjan SCC — no stack overflow on large graphs (86f3eb3)
  • Topological sort uses index pointer instead of Array.shift() (O(V+E) vs O(V²)) (86f3eb3)
  • Lazy-load Lorenz3DRenderer with next/dynamic + ssr: false (86f3eb3)
  • Replace Math.min/max(...largeArray) with .reduce() — prevents stack overflow (86f3eb3)
  • Rate limiter skips KV entirely for unlimited tiers (86f3eb3)

Maintenance

  • isFinite()/isNaN() → Number.isFinite()/Number.isNaN() across 12 files (86f3eb3)
  • node: import protocol for Node.js builtins in 4 files (86f3eb3)
  • Remove redundant @@index([shortCode]) from Prisma schema (86f3eb3)
  • Export FavoriteType enum from @nextcalc/database (86f3eb3)
  • Add Sentry env vars to Turbo build cache keys (86f3eb3)
  • Fix test task dependency: ["build"] → ["^build"] (86f3eb3)
  • Bump all package versions to 1.1.0 (86f3eb3)

1.0.0 - 2026-02-28

2026-02-24

Features

  • Seed Lorenz GPU particles along the attractor trajectory (6aa3223)
  • 5 procedural space cubemap themes with configurable resolution (6876731)
  • Add 5 colormaps (inferno, coolwarm, cividis, magma, spectral) and fix zoom sensitivity (5e2c498)
  • Upgrade PageRank nodes to 3D spheres with proper lighting and size cap (998631e)

Bug Fixes

  • Attention matrix multi-hue OKLCH colormap for dark theme readability (bddf9f2)
  • Add cubic, Gauss, circle maps to bifurcation WebGPU shader (6938f89)
  • Use SVG markers for eigenvector arrowheads to fix alignment (115b2a7)
  • Improve box plot whisker visibility with dashed strokes (118b708)
  • Symbolic integration of x*ln(x) via integration by parts (070818f)
  • PDE solver re-runs on all parameter changes, fixing blank heatmap (1bb87b9)
  • Use seeded PRNG in MetaLearningPlayground to prevent hydration mismatch (5f7e3a1)
  • Body suppressHydrationWarning, favicon metadata, temperature icon overflow (81df29d)

Maintenance

  • Bump biome 2.4.4, tailwind 4.2.1, hono 4.12.2, typescript 6.0.0-dev.20260223, workers-types 4.20260302.0 (0ac9bd8)

2026-02-21

Features

  • Add 4 PDE initial condition presets (double Gaussian, sawtooth, square pulse, sinc) (d5659f4)
  • Add 3 graph presets and detailed proof section for algorithm results (53396a3)
  • Detailed rule explanations for integration and derivative solver steps (58816d2)
  • Add polar plot analysis section (symmetry, petals, area) (f9b1c31)

Bug Fixes

  • Update symbolic page to reflect full integration capabilities (1490a47)
  • ML attention matrix readability and similarity matrix OKLCH colors (707114e)
  • Box plot whiskers, end-caps, and hover tooltips (57878f7)
  • Complex panel Unicode subscripts and conjugate overline rendering (d29c5ee)
  • Fourier axis labels respect zoom/pan visible window (746ec18)
  • Bifurcation DPR scaling, Y-axis pan, add 10 presets (f927b2f)
  • Implement proper SSAO with GTAONode instead of empty AO slot (aa3d565)
  • Resolve stale closure in Lorenz GPU particle toggle (a06ceff)
  • Resolve WebGPU init race condition in PDE heatmap (24cd16d)
  • Prevent PageRank crash when clearing graph (division by zero guard) (af9228e)

Maintenance

  • Bump dependencies: next, biome, three, prisma, framer-motion, hono, etc. (0465421)

0.1.0 - 2025-10-16

Initial Release

Features

  • Complete Phase 1 MVP calculator with history, keyboard shortcuts, and LaTeX rendering (62208ef)
  • Next.js 16.0.0-beta.0 with React 19.2.0 upgrade (e1e8ba5)
  • Next.js app with App Router and shared types package (1a9f33f)

Infrastructure

  • Initial project setup with Turborepo, TypeScript 5.9.3, and ESNext (b195e60)

This changelog is generated from the git history. Commit hashes reference the short SHA for each change.