What is the 'Neural Link'?

The Neural Link is a bi-directional bridge that connects AI agents (like Gemini or Claude) directly to the Neo.mjs runtime. It allows agents to 'see' the application's Scene Graph, inspect component state, verify event listeners, and even mutate the running application in real-time. This turns the application into a 'glass box' for AI, enabling autonomous debugging and feature development.

Why is Neo.mjs called an 'Application Engine' instead of a framework?

Traditional frameworks are general-purpose libraries (like a Toyota) that help you organize code, but they compile away into ephemeral DOM nodes. Neo.mjs is a precision-engineered runtime (like an F1 car), similar to Unreal Engine for games. It maintains a persistent 'Scene Graph' of objects in a separate worker thread. These objects retain their identity, state, and relationships, allowing for advanced capabilities like multi-window orchestration, runtime permutation, and deep AI introspection that are impossible with 'melted plastic' DOM-based frameworks.

What is 'Context Engineering'?

Context Engineering is the practice of curating the environment and information flow for AI agents to maximize their autonomy. In Neo.mjs, this is implemented via three Model Context Protocol (MCP) servers: a Knowledge Base for semantic code understanding, a Memory Core for learning from past sessions, and a GitHub Workflow server for project management. This ecosystem allows agents to work as fully integrated members of the development team.

What is 'Object Permanence' in the context of Neo.mjs?

In Neo.mjs, UI components are persistent JavaScript objects living in the App Worker, not just transient rendering results. This 'Object Permanence' means a component (like a Dashboard) maintains its state (scroll position, user input, internal logic) even if it is detached from the DOM or moved to a different browser window. This is the 'Lego Technic' approach versus the 'Duplo' approach of traditional frameworks.

What is an 'Agent Operating System'?

Neo.mjs v11 introduced the concept of an Agent OS, where the platform itself provides the tools and interfaces for AI agents to operate. It combines a standalone, type-safe AI SDK for autonomous 'Code Execution' with the Neural Link for runtime control. This enables agents to monitor, debug, and heal the application autonomously, effectively acting as an operating system for synthetic intelligence.

How does Neo.mjs handle multi-window applications?

Neo.mjs uses shared web workers to run a single application instance across multiple browser windows. All windows share the same application state and data in real-time. Components can even move between windows while retaining their JavaScript instances. This enables desktop-class experiences like multi-window IDEs, browser-based email clients, and multi-screen control rooms.

What makes Neo.mjs different from React, Angular, or Vue?

Neo.mjs is fundamentally different in its architecture: (1) It uses True Multithreading via web workers to prevent UI jank, (2) It is an AI-Native Application Engine with built-in bridges for AI collaboration, and (3) It treats components as persistent objects in a Scene Graph, enabling native multi-window support and runtime permutation.

Backlog
v12.1.0

9586 Analysis: Robust Multi-Window LivePreview Routing & Base Path Resolution
9585 Bug: LivePreview popout windowUrl generates incorrectly in dist environments
9584 Bug: Data worker broadly bundles non-data framework classes (Main.mjs) causing Webpack build failure
9582 Bug: Webpack fails due to unanchored `webpackInclude` picking up Node modules
9581 Bug: Webpack fails to resolve Task, Canvas, and Data worker dynamic chunks due to strict magic comments
9583 Bug: Webpack matches absolute paths, invalidating the ^\.\/ magic comment anchor
9580 Bug: Webpack fails to resolve internal app.mjs chunks due to strict magic comment regex
9579 Fix ChromaDB defrag crash on ghost entries
9578 Portal: Add TreeGrid Big Data Example
9577 Draft Release Notes: Storytelling & Narrative Arc
9575 Draft Release Notes: Gather Visual Assets
9576 Draft Release Notes: MCP Infrastructure & Security
9569 Epic: Neo.mjs v12.1 Release Notes
9574 Draft Release Notes: Generate Full Changelog
9573 Draft Release Notes: Learning Guides & Minor Features
9572 Draft Release Notes: ScrollSync & Performance
9571 Draft Release Notes: Locked Columns & Value Banding
9570 Draft Release Notes: TreeGrid & Data Pipeline Architecture
9568 Fix code examples in DataPipelines.md guide
9567 Update AI_QUICK_START.md to include Antigravity configuration
9539 Add TreeStore override for updateKey()
9566 Enhance `agent` parameter formatting in GitHub Workflow MCP Server
9538 Enhance Collection.updateKey() to support filtered collections (allItems map)
9565 Regression: Store.load({url}) fails when Store has no initial URL config
9552 Docs: Create Learning Guide for the Unified Data Pipeline Architecture
9564 Finalize Data Pipeline Push Integration & UI Reactivity
9563 Modularize MCP Server Architecture and Extract Shared Services
9562 Implement Generic OIDC Discovery and Google OAuth Hands-on Guide
9561 Add Functional Tests for MCP Authorization and Refine Error Handling
9560 Create Comprehensive Guide for MCP Server Authorization
9558 Implement OIDC/OAuth Authorization for KB and Memory MCP Servers
9551 Examples: Implement unified Data Pipeline showcases
9550 Refactor(data): Implement Store-to-Pipeline Legacy Bridge
9502 Migrate existing Stores to the new Pipeline architecture
9549 Remove `console.log` statements causing noise in unit tests
9548 `calcValueBands` broken state initialization on `splice` (StoreValueBanding test failure)
9454 Implement Push-Based WebSocket Integration in Data Pipeline
9455 Integrate RPC API into Pipeline Architecture (Connection.Rpc)
9547 Fix RemoteMethodAccess for Main Thread Addons and Instance-to-Instance ID collision
9546 Refactor Pipeline IPC to use Declarative Remote Configs (Instance Proxies)
9453 Implement Pipeline IPC and Remote Execution Routing
9545 Fix Knowledge Base Tool Argument Routing (x-pass-as-object)
9544 Enhance RemoteMethodAccess to Support Instance-to-Instance Routing
9543 Store Pipeline Instantiation and Legacy Parser Compatibility
9452 Connection Foundation and Parser Refactoring
9456 Epic: Buffered Grid - High-Performance Locked Columns (`locked: 'start' | 'end'`)
9542 Update Code of Conduct to include AI Entities & Autonomous Agents
9541 Remove outdated and redundant .github/CONCEPT.md
9540 Update CONTRIBUTING.md to include AI Agents & Autonomous Entities
9196 Feature: Add Collection.updateKey() method
9534 Rename mcp-stdio.mjs to mcp-server.mjs
9533 Migrate MCP servers from SSEServerTransport to StreamableHTTPServerTransport
9532 Support SSE transport for knowledge-base and memory-core MCP servers
9531 Grid SortZone incorrectly intercepts column resize drag events, causing VDOM corruption and layout thrash
9530 Grid cells vanish during column resize after a drag-and-drop column reorder
9529 Add lightweight cell resizing method to grid.Body
9528 Real-time cell resizing during grid column drag:move
9527 Grid cells do not shrink on column resize drop due to minWidth constraint
9526 Add visual focus styling during grid column resizing
9525 Fix header resize proxy visibility and prevent unwanted absolute styles on drop
9524 Prevent column sort toggle when clicking/dragging resize handles
9523 Resolve drag&drop collision between grid column resorting and resizing
9522 Grid Column Resizing: Header Logic and Update on Drop
9521 Tree Grid: Optional Helper Lines for Tree Structures
9520 LivePreview: Propagate active theme to popout child window
9519 SharedWorker: Fix theme resolution for child windows
9518 Fix LivePreview incorrect popout URL for subsequent windows (SharedWorkers)
9517 Workers: Standardize and optimize dynamic imports
7918 Epic: Neo Command Center (Agent OS UI)
8022 Refactor AgentOS Viewport: Modularize Components
8025 Create Custom Theme: Neo Cyberpunk
9516 Portal HomeCanvas: Enhance spark contrast in dark theme
9515 [Epic Sub] Value Banding styling conflicts with row selection
9514 [Epic Sub] TreeStore Value Banding Support
9513 Optimize Grid Value Banding (startIndex Support)
9512 Dynamic Value Banding Updates
9511 [Epic] Grid Value Banding
9510 Tooltip regression: dynamic domListeners bypassed reactivity and bubbling fixes
9509 Docs: Align core engine guides to use "engine" terminology instead of "framework"
9508 Docs: Explain Main Thread Addons and Lazy Loading in Lifecycle guide
9507 Docs: Clarify Two-Tier Reactivity Architecture and core.Config role
9506 Improve inline code styling within h1 tags in Markdown component
9505 Portal: Missing scrollbar contrast in learning section markdown component
9504 List: Fix vertical scrollbar visibility and contrast
9451 Create Pipeline Cornerstone and Refactor Store Implementation
8019 Bug: isWindowDragging flag stuck after external drop
9503 TimelineCanvas regression: Canvas not showing due to SharedCanvas getCanvasId() mismatch with componentId
9500 Epic: The Core Engine Learning Guides & Workshop
9485 Grid: Horizontal Scroll Performance & Jitter for Locked Columns
9484 Grid: Add Unit Tests for Locked Columns Feature
9460 Grid: Column Drag & Drop Integration & State Transitions
9459 Grid: Implement Reactive locked Config and Cell Pooling Bypass
9458 Grid: Create Main Thread Addon for Column Pinning (CSS Variables)
9483 Grid: Implement Reactive locked Config and Run-Time Column Reordering
9457 Grid: Implement Mathematical Column Layout Engine
9356 Chrome Windows: Multi Window Drag & Drop
9359 Google Windows Covid 19 Helix
9365 Chrome Window Neo mjs home
9482 Firefox Nightly: Scroll wheel stuck on Portal home page due to scroll-snap-type mandatory
9481 Auto-detect `isTreeGrid` config based on the Store instance
9479 Firefox Nightly R&D: OffscreenCanvas Worker-to-Worker Transfer Failure
9478 Grid ScrollManager: Support dynamic windowId changes for Main Thread Addon registration
9363 Chrome Window Learn funktionale Komponenten
9364 Chrome Window Calendar Basic
7957 Epic: WebSocket RMA Infrastructure
7958 Epic: Telemetry & Observability
7959 Epic: Agent Security & Capabilities
9476 DevIndex: Add Contextual Rank Column to Grid
9475 Grid: Remove `#initialChunkSize` DOM pooling bypass & fix pool shrink bug
9474 Grid: Optimize row pooling for small datasets
9473 Add File Editing Tool Protocol to AGENTS.md
9472 Add Testing Protocol to AGENTS.md
9471 Add Anti-Corruption Protocol to AGENTS.md
9470 Fix Grid Drag Scrolling Regression
7914 Epic: Foundation for Ticket-Driven Agent Orchestration
7919 Epic: Decouple AI Tooling for Public Ecosystem
7922 Feat: 'Derailment' Intervention Interface
7923 Refactor: Extract Memory Core to @neomjs/ai-memory-server
7924 Refactor: Extract GitHub Workflow to @neomjs/ai-github-server
7925 Feat: Create VisualService (Sighted Agent SDK)
7926 Feat: Add Cross-Repo Capabilities to GitHub Workflow MCP
9461 Epic: TreeGrid Big Data Demo
9469 TreeStore: internalIdMap desyncs after bulk operations (expandAll), breaking selection
9468 Fix memory leak in TreeStore.#rebuildKeysAndCount()
9466 TreeGrid Big Data Demo: Create E2E Tests
9467 Fix TreeStore.collapse() failing after expandAll() due to out-of-sync Collection map
9465 TreeGrid Big Data Demo: Styling, Logging, and Final Integration
9464 TreeGrid Big Data Demo: Implement Controls and Grid Wiring
9463 TreeGrid Big Data Demo: Implement Organic Data Generation Algorithm
9462 TreeGrid Big Data Demo: Scaffold Base Directory and Files
9420 Migrate Data Pipeline to Connection -> Parser -> Normalizer flow
9450 Enhance Data Worker to Instantiate Dynamically Loaded Modules
9419 Implement Dynamic Module Loading in `Neo.worker.Data`
9418 Create Data Normalizer Architecture (`Neo.data.normalizer.Base` & `Tree`)
9412 TreeGrid Component Tests (UI & Interactions)
9448 TreeGrid Component pooling accumulates `is-leaf` class leading to visual bugs
9447 TreeGrid: Fix 7-click expand/collapse bug and redundant change events
9446 Fix ComboBox test failure due to internalId changes
9445 TreeGrid Documentation: Create high-level architectural guide for TreeStore
9444 Clean up redundant `Neo.isDestroyed` catch blocks
9443 Stabilize Playwright Unit Tests by Centralizing Global Mocks
9442 Fix Grid Pooling DOM thrashing and Collection internalId lookup
9440 AI Workflow: Integrate Anchor & Echo strategy into Pre-Flight Commit check
9439 TreeStore: Apply "Anchor & Echo" JSDoc strategy for AI discoverability
9438 TreeStore: Reduce GC pressure and redundant iterations
9437 TreeStore: Optimize #allRecordsMap iteration loops
9433 TreeStore: Implement bulk expandAll() and collapseAll() methods
9435 TreeStore: Fix visible projection for dynamic child additions to expanded parents
9434 TreeStore: Decouple clearFilters() from legacy allItems pattern
9432 TreeStore: Override clear() to prevent memory leaks and split-brain states
9431 TreeStore: Fix ARIA desync (siblingIndex and siblingCount) after sort and filter
9429 TreeStore: Implement ancestor-aware filtering for filter override
9428 TreeStore: Implement hierarchical sorting for doSort override
9430 TreeModel: Introduce childCount to decouple isLeaf state from emptiness
9411 TreeGrid Unit Tests (Data & Logic)
9427 Fix TreeStore projection mutations and Row VDOM recycling
9426 Refactor Tree column and component reactivity
9425 Refactor Tree cell component architecture for performance
9424 Optimize `cellPoolSize` calculation in `grid.Body` to prevent DOM waste
9410 TreeGrid Documentation & Examples
9423 TreeStore Full CRUD Support & Structural Mutations
9422 Update TreeStore to manage ARIA sibling fields on mutations
9408 Grid Core Integration & TreeGrid Accessibility
9407 Create `Neo.grid.column.Tree` & Cell Component
9417 Optimize `TreeStore` Hot Paths (Performance)
9416 Add Error State & Events for Async Tree Loading
9413 Create Async Subtree Loading for `Neo.data.TreeStore`
9415 Support "Turbo Mode" in `Neo.data.TreeStore`
9414 Refactor `Neo.data.Store` to unify Record Hydration
9406 Create `Neo.data.TreeStore`
9405 Create `Neo.data.TreeModel`
9403 Performance: Eliminate Path scrollTop Layout Thrashing in getTargetData
9402 Performance: Eliminate Main Thread Layout Thrashing in getTargetData
9401 Performance: Proxy Getter Hoisting in Grid Row & Array Slice Optimization
9400 Performance: O(1) Fast Paths for onScrollCapture getById Traversal
9398 Performance: Eliminate O(N²) App Worker VDOM Traversal (syncVnodeTree)
9396 E2E: Implement Synthetic Thumb Drag Profiles for Optical Pinning Validation
9395 E2E: Refine GridRowScrollPinning to Target Explicit Thumb Drags
9394 E2E: Validate GridRowScrollPinning against DevIndex Canvas Worker Latency
9393 E2E: Implement GridRowScrollPinning via CSS Variables
9392 E2E: Implement GridRowScrollPinning Automated Test and Sync Refinement
9391 E2E: Refactor GridRowScrollPinning to Hybrid rAF Engine
9390 E2E: Fix GridRowScrollPinning Registration and DOM Lookup Flaws
9389 E2E: Remove Legacy Scroll Prediction Heuristics from Grid ScrollManager
9387 E2E: Implement Main Thread Optical Pinning for Grid Scrolling
9388 E2E: Enhance VDOM Update Pipeline with Meta Payload Support
7834 [Test] Button click event not firing on mobile
9386 E2E: Add min velocity threshold to Grid Predictive Scrolling
9385 E2E: Expose Performance tracker metrics via Remote Methods
9383 E2E: Implement Predictive Delta Injection (Velocity & Acceleration)
9382 E2E: Implement Dynamic RTT Measurement for VDOM Updates
9384 Implement generic Neo.util.Performance tracker
9381 E2E: Create Deterministic Grid Thumb Drag Benchmark
9379 Mobile Scrollbar UX: Increase touch width to 40px and theme thumb colors
9378 Extract desktop grid scrollbar width into a CSS variable
9377 Define `--grid-scrollbar-touch-width` variable across all themes
9369 [Epic] Upgrade ScrollSync for Loop-Free Two-Way Binding (Mobile & Desktop)
9376 Add .neo-has-touch capability class and enhance Mobile Grid Scrollbar
9374 Mobile UX Enhancements for Grid VerticalScrollbar (SCSS)
9373 Enable Mobile Two-Way ScrollSync for Grid VerticalScrollbar
9372 Refactor GridDragScroll to use ScrollSync API
9375 Improve ScrollSync Lock Release Mechanism (rAF vs setTimeout)
9371 API for Programmatic Scrolling in ScrollSync
9370 Upgrade ScrollSync Locking Mechanism
9361 Chrome Windows Johannes DevIndex
9362 Chrome Windows DevIndex
9360 scroll to bottom bug on main page
9368 Enhance Helix to rotate to initial selection on mount
9367 Fix Helix & Gallery selection models keynav and record resolution
9357 Chrome Windows Covid App
9358 Google Windows Covid 19 Helix
7847 Enhance WindowPosition Addon with Adaptive Tracking
9349 build: Fix dirent.path resolution and OS-agnostic pathing in esmodules.mjs
7756 Enhance `create_comment` tool to enforce reading related tickets

v12.0.0

9348 GridDragScroll: Prevent Intervention error on touchmove
9347 Documentation: Reframe Memory Core usage as an AI "Superpower" in AGENTS_STARTUP
9344 Extract Engineering War Stories (Memory Core)
9343 Extract DevIndex Guides & Mermaid Diagrams
9342 Hero Story: Core Architecture Hardening
9346 Docs: Add Epic Summary to v12 Release Notes Changelog
9322 Docs: Provide empirical Delta Log proof for Grid Row Pooling in v12 Release Notes
9341 Hero Story: The Grid Rewrite
9340 Hero Story: The DevIndex & Data Layer
9345 Final Narrative Arc & Editorial Polish
9339 Epic: Draft and Finalize v12.0.0 Release Notes
9337 Feature: Expose GitHub Meritocracy Index in Portal App Examples
9336 Performance: Optimize core utilities in Neo.mjs (cloneMap, camel, loops)
9335 Performance: Optimize array cloning in Neo.clone to use slice and map directly
9334 Performance: Optimize Collection `items_` config to use shallow cloning
9333 Collection: Replace array spreads with native slice to fix GC stalls on massive datasets
9332 Collection: Prevent deep cloning and spread operator limits when creating allItems
9331 Store: Prevent soft hydration for inactive/null filters in Turbo Mode
9330 DevIndex: Apply load mask for initial Turbo Mode soft hydration
9329 Clarify "Commits %" logic in DevIndex Guides
9327 Fix commitRatio calculation to exclude private contributions
9328 Add Field Dependency Resolution to Store
9326 Address "Bots and Cheaters" Criticism in DevIndex Docs
9324 Update DevIndex Docs to Reflect Human-AI Development Velocity
9323 Refine DevIndex Introduction Disclaimer and Cap Context
9321 Fix VDOM diffing race condition between innerHTML and textContent
9320 Optimize VDom Lifecycle and TreeBuilder hot paths to reduce GC pressure
9319 Optimize Grid hot paths to reduce GC pressure
9318 Optimize VDom Helper hot paths to reduce GC pressure
9317 Optimize DOM hot path DeltaUpdates to reduce GC pressure
9316 DomEvent: Fix ResizeObserver routing for external targets
9315 Main Thread: Hardware-Sync ResizeObserver with requestAnimationFrame
9314 SharedCanvas: Refactor ResizeObserver Architecture & Event Routing
9313 Header Canvas: Fix layout syncing on mobile and dynamic item sizing
9312 DevIndex: Disable controls toggle button on learn route
9311 Bug / Enhancement: Fix unstable sorting & enforce nulls at bottom
9310 Bug: Fix LinkedIn icon rendering and Twitter link format in DevIndex Grid
9309 Performance: Remove avatarUrl convert overhead in DevIndex Contributor Model
9308 Implement custom sorting for Top Repo column in DevIndex
9307 Resolve naming clash for Icon/IconLink column iconCls
9306 Implement two-state (ASC/DESC) sorting for Grid headers
9305 Fix: StateProvider `createBinding` overwrites multi-bindings and leaks effects
9304 Fix: Enforce static state bindings for pooled Component columns (Memory Leak)
9301 Persist DevIndex Animation Settings and Batch LocalStorage Reads
9302 Enhancement: Add `canvasReady` event to `Neo.app.SharedCanvas`
9300 Split DevIndex Animation Controls (Header vs Grid)
9294 Revert to PAT for cross-repo pages deployment to fix 403 error
9293 Add push synchronization step for DevIndex data to pages repo
9292 Fix DevIndex pipeline data paths after directory refactoring
9291 Fix JSDoc parsing error in devindex Storage.mjs
9290 Refactor DevIndex data deployment strategy to prevent huge resource duplication
9289 [Enhancement] Refine AI Agent Ticket Workflow to 'Ticket-Before-Commit'
9288 [Enhancement] Generic Theme Support for Icon and IconLink Grid Columns
9287 [Documentation] Document the 'undefined' sentinel value for reactive config initialization
9286 [Bug] Grid Component Columns Retain Stale State on Scroll
9285 DevIndex Sparkline: Improve pulse contrast for light theme
7737 Create Playwright Component Test for Neo.component.Label
9284 Grid Container: Pass initial theme to child instances
9283 Canvas Sparkline: React to theme changes
9282 Grid Row: Propagate theme changes to cell components
9281 DomEvents: Prevent duplicate local DOM event listeners
9280 Component: Support deep merging for `bind_` configs
9279 DevIndex: Fix 'Show Animations' checkbox binding for Grid Sparklines
9278 Fix Grid Row Bottom Border and Remove Empty Scroll Row
9277 Improve LocationNormalizer with missing cities and countries
9276 Support infinite indentation levels in TreeList using CSS variables
9275 Fix invalid CSS variable in dark theme Splitter
9274 Fix transparent background on mobile left-side tree navigation overlay
9273 Fix missing mobile hamburger menu in DevIndex learn section
9272 DevIndex Guides: Add to Portal App Learning Navigation
9267 DevIndex Persona Guides: Connecting Data to Intent
9271 Create DevIndex Guide: The Ethical Manifesto (Why We Built This)
9270 Create DevIndex Guide: Policy Makers & Gov Funding
9268 Create DevIndex Guide: Talent Scouts & Recruiters
9269 Create DevIndex Guide: Data Scientists & Researchers
9246 Add DevIndex FAQ Guide
8930 Epic: DevIndex - The GitHub Meritocracy Index
8938 Feat: UI Filtering Logic
9106 DevIndex App Polishing
9194 Zero Overhead Record Architecture & Grid Dynamic Column Fixes
9202 Investigate CSS Optimizations for Grid Rendering (Desktop Scaling)
9257 [EPIC] DevIndex Frontend & User Guides
9259 Create Frontend Guide 1: Architecture & Off-Main-Thread
9260 Create Frontend Guide 2: The Grid Rewrite & Virtualization
9258 Create User Guide: Understanding Grid Columns & Metrics
9266 Update ContentEngine guide with DevIndex-specific examples
9265 Fix markdown escaping for nested special code blocks
9262 Create Frontend Guide 4: The Markdown Content Engine
9263 Create Frontend Guide 5: OffscreenCanvas & Parallel Rendering
9261 Create Frontend Guide 3: State Management & Controls
9256 Enhance Backend Guide: Emphasize In-Memory Streaming Performance
9255 Create Backend ("Fat Client") Guide for DevIndex
9254 Fix Markdown inline elements in headlines and adjust inline code margin
9253 Add Neo Funding Case Study to Introduction Guide
9252 Add Current Status and Contribution Guidelines to DevIndex Intro
9251 Enhance Location Normalizer and Document Macro-Economic Insights
9250 Rewrite DevIndex Data Factory Introduction
9249 Add DevIndex Data Factory Guide: Data Enrichment Utilities
9248 Add DevIndex Data Factory Guide: Updater Service
9245 Add DevIndex Data Factory Guides: Storage & GitHub API
9247 Fix Opt-In evaluation relying on ticket titles
9233 DevIndex: Expand Methodology Guide with Motivation, Tech Demo Context, and Disclaimers
9244 Add DevIndex Data Factory Guides: Orchestrator & Data Hygiene
9243 Rename DevIndex Spider Guides to Data Factory
9242 Expand DevIndex Spider Engine Guide with Workflow Steps
9241 Add DevIndex Spider Engine Guide
9240 Refactor DevIndex Guides Structure (Spider Subfolder)
9239 DevIndex: Finish renaming blacklist/whitelist to blocklist/allowlist in Cleanup.mjs
9238 Integrate Opt-In Service into Hourly Pipeline & Document Architecture
9237 Process Issue Templates for DevIndex Opt-In
9236 Implement "Quick Star" Opt-In Pipeline
9235 DevIndex: Adjust Meritocracy Filter to exclude allowlisted users from the maxUsers cap
9231 DevIndex: Implement Issue-Template-Based Opt-Out mechanism
9234 DevIndex: Split Methodology guide into Introduction and Methodology
9232 DevIndex: Rename blacklist and whitelist to blocklist and allowlist
9230 DevIndex: Implement Star-Based Opt-Out Service (OptOut.mjs)
9229 Optimize Spider Core Strategy with Power-Law Distribution
9227 Unify DevIndex Workflows and implement Spider backpressure
9226 Enhance KB: Document maxUsers cap and performance trade-offs in DevIndex
9225 Handle GitHub IP allow list errors gracefully in Updater
9224 Implement maxUsers cap for DevIndex GitHub Spider
9223 DevIndex: Extract StatusToolbar SCSS into separate file
9222 DevIndex: Refactor StatusToolbar layout for mobile responsiveness
9220 DevIndex: Move StatusToolbar to MainContainer Wrapper
9218 DevIndex: Fix Grid Box Shadow Clipping
9217 Update remaining neo-dark form fields and fix inline label color
9216 DevIndex (Light Theme): Align Tab Header Colors with Grid Header
9215 Update neo-dark theme form fields to match Deep Blue/Purple aesthetic
9214 DevIndex: Style ControlsContainer Tabs to match Portal Theme
9213 DevIndex: Polish Grid & Controls Layout (Shadows, Borders)
9212 DevIndex: Create HeaderToolbar Theme Files
9210 Regression: Unit Test Failures in Teleportation.spec.mjs after #9200
9200 Optimization: Record Versioning & Component Column Short-Circuit
9207 Verify Playwright Overhead with Native Scroll Benchmark
9204 Profile Main Thread Activity for Desktop Grid Scrolling
9206 Commit Playwright Profiling Infrastructure & DomEvents Optimization
9205 Debug SyncAligns Layout Thrashing during Grid Scroll
9203 Investigate Grid Scrolling Performance via Column Ablation Strategy
9199 Benchmark Grid Horizontal Scroll Performance
9201 Docs: Dynamic Grids Guide
9195 Fix GridBody Column Position Sync on DataField Change
9198 Cleanup Redundant GridContainer Logic
9197 Add Regression Test for Dynamic Grid Columns
9193 Implement Virtual Fields for Zero-Overhead Records
9192 DevIndex: Swap 'Private %' and 'Commits %' Columns
9191 DevIndex: Implement 4-Mode Data Toggle (Total, Public, Private, Commits)
9190 DevIndex: Add 'Private %' Column
9189 Enhance Stream Proxy with DecompressionStream Support
9188 Implement Stop Stream Capability for DevIndex
9187 Investigate and Optimize Stream Proxy Performance
9186 Fix Scroll Thrashing during Store Streaming
9184 Optimize Component Columns with contain: strict
9183 Enforce hideMode: 'visibility' for Component Grid Columns
9182 Fix SortZone onDragMove race condition
9181 Fix Grid Column Drag & Drop Regression
9180 Promote ask_knowledge_base as RAG Sub-Agent in AGENTS_STARTUP.md
9179 DevIndex: Introduce StateProvider for animateVisuals
9178 DevIndex: Add 'Impact' Column (Heuristics Visualization)
9177 DevIndex: Add 'Commits %' Column and Automation Filter
9176 DevIndex: Polish Top Repo Display and Column Order
9175 DevIndex: Restore 2026 Data and Polish Activity Column
9174 DevIndex: Reorder Grid Columns and Style Sponsors Heart
9173 Enhance IconLink with Label Support and Update Sponsors Logic
9172 DevIndex: Optimize LinkedIn URL Storage
9171 DevIndex: Include Repo Owner in Top Repo Logic
9154 [DevIndex] Add TopRepo, Twitter, and Sponsors columns
9170 Regression: ComboBox labelPosition inline broken
9169 [Grid] Implement Self-Healing Row Pooling
9165 [Grid] Fix Runtime Buffer Updates Breaking Row/Cell Pooling
9168 [Grid] Optimize Runtime Buffer Updates (Phase 2: Performance)
9167 [Grid] Fix Runtime Buffer Updates (Phase 1: Functional)
9166 [Test] Fix StreamProxy Unit Tests: Mock Store
9164 [DevIndex] Rename Control Tabs & Add Buffer Settings
9163 [BigData Grid] Increase Initial Row Count to 20k
9162 [BigData Grid] Fix Redundant Data Generation on Filter
9161 [DevIndex] Fix Redundant Store Load via createAllItems hook
9158 docs: Document Grid Performance Optimizations (Row/Cell Recycling)
9157 perf(grid): Optimize Horizontal Scrolling (Cell Recycling)
9156 perf(grid): Optimize VDOM generation in Row.updateContent
9155 [DevIndex] Grid Icon Columns fail to update on Filter change
9153 [DevIndex] Add Bio Filter and Hireable Checkbox
9152 [DevIndex] Add Hireable and Website columns to Grid
9150 DevIndex: Client-Side "Commits Only" Toggle & Total Commits Implementation
9151 feat(grid): Support runtime column dataField changes
9149 DevIndex: Add Total Contributions label to StatusToolbar
9148 DevIndex: Use locale formatting for StatusToolbar row count
9143 DevIndex Heuristics & Anomaly Detection
9147 Refactor Contributor Model: CamelCase & New Schema Sync
9146 Fetch Top Repository Name for Focus Metric
9145 Integrate Heuristics into Updater Pipeline
9144 Implement Heuristics Service for DevIndex
9137 Implement ID-Based Rename Handling for DevIndex
9136 Implement 30-Day Retention Policy for DevIndex Penalty Box
9142 [DevIndex] Create Country Code Repair Script
9141 [DevIndex] Fix Washington DC Location Resolution
9140 Implement Scheduled DevIndex Spider Workflow
9139 Fix DevIndex Updater Workflow: Stage All Data Files
9138 Fix DevIndex Updater Workflow Unstaged Changes Error
7677 Create Playwright Component Test for Neo.form.field.Password
9135 Implement Safe Purge for Invalid Users in DevIndex Updater
9134 Fix Organization Leakage in DevIndex and Updater Retries
9133 Tune Spider Strategy Probabilities and Enhance Documentation
9132 Implement 'Network Walker' Discovery Strategy (Social Graph)
9131 Fix Spider Bio-Signal Search Query 422 Error
9130 Increase DevIndex Updater Throughput to 500 Users/Hour
9129 Fix DevIndex Updater Workflow Unstaged Changes Error (failed.json)
9128 Implement Adaptive Chunking for DevIndex Updater to Fix 504 Timeouts
9127 Fix DevIndex Updater Workflow Rebase Logic
9126 DevIndex: Blacklist identified bots from failed.json
9125 DevIndex: Stop Cleanup.mjs from pruning orphaned tracker users
9123 Enhance Stream Proxy with Adaptive Chunking for Faster TTFC
9124 Robustify DevIndex Updater Workflow against Remote Changes
9122 DevIndex: Refine Updater Metrics (Success vs Failure)
9121 DevIndex: Implement "Penalty Box" for Failed User Updates
9119 DevIndex: Add Scheduled Hourly Updater Workflow
9118 DevIndex: Enhance Updater with Private Contributions & Metadata
9117 Refactor Grid Footer Toolbar for Store Integration
9116 DevIndex: Polish StatusToolbar Styling and Logic
9115 Optimize Store Streaming and Progressive Loading
9114 DevIndex: Add Status Toolbar and Progress Indication
9113 docs: Add Visual Verification Protocol to AGENTS_STARTUP.md
9112 DevIndex: Add Profile Tab to Controls Panel
9111 Support ISO 2 country codes in CountryFlag component and grid column
9110 DevIndex: Support 'country' URL search parameter
9109 Refactor: Rename DevRank to DevIndex
9108 Grid Body fast path fails to update Row mounted state, breaking OffscreenCanvas recovery
9107 OffscreenCanvas charts in Grid Component Columns do not recover after VDOM purge
9105 Refactor: DevRank Viewport Lazy Loading & Routing
9104 Refactor: DevRank Folder Structure
9103 Fix: DevRank Spider 422 Error on Complex Queries
9102 Fix Memory Core MCP Server failing to load GEMINI_API_KEY from .env
9100 Perf: Remove unused Material Icons from Portal index.html
9101 Fix: Standardize Font Awesome version usage in SCSS
9099 Fix: Add missing Google Fonts to DevRank index.html
9098 Feat: Integrate Documentation Viewer into DevRank
9082 Refactor Portal Content Viewer to Framework Component
9097 Feat: Include Repository Creations in DevRank Contributions
9096 Feat: GitHub API Secondary Rate Limit Handling & Concurrency Tuning
9089 Epic: Engine-Level Streaming Data Loader (JSONL)
9095 Docs: "Streaming Data & Progressive Rendering" Guide
9091 Feat: Enhance Neo.data.Store to support Proxy loading
9094 Feat: Batch Streaming & Progressive Rendering for Proxy Loader
9092 Refactor: Convert DevRank to use Streaming Proxy
9093 Refactor: DevRank Backend JSONL Persistence
9090 Feat: Implement Neo.data.proxy.Base and Neo.data.proxy.Stream
9088 Fix: DevRank Spider Premature Exit (Split Core/Search Rate Limits)
9087 Fix: Broken GitHub Rate Limit Detection and Graceful Exit
9086 Feat: DevRank Spider CLI Strategy Selection
9085 Feat: DevRank Spider Community Discovery Strategy
9084 Enhancement: DevRank Atomic File Persistence
9083 Feat: DevRank GitHub API Rate Limit Protection
9081 Feat: DevRank Global Animation Toggle
9080 Perf: DevRank Header Adaptive Backpressure
9079 Feat: DevRank Header "Show Off" Kinetic Scroll Effect
9078 Feat: DevRank Heatmap CSS Transitions
9068 Refactor: Global Audit & Fix for 'keyProperty' Access (Turbo Mode Compatibility)
9070 feat: Implement 'internalId' via Collection Identity Hook
9076 perf: Implement O(1) Lookup Map for internalId
9074 Epic: Framework-wide Adoption of 'internalId' for Stable DOM Identity
9071 refactor: Adopt 'internalId' for Stable DOM Keying (List & Data Views)
9073 refactor: Ensure Drag & Drop Stability via 'internalId'
9072 refactor: Adopt 'internalId' for Stable DOM Keying (Grid & Table)
7435 Create Component Tests in Playwright (and migrate existing tests from Siesta)
9069 Refactor: Collection.Base to use getKey() hook for Turbo Mode Support
9067 Fix: Resolve Mapped KeyProperty Conflict in Turbo Mode via Store.getKey()
9066 Bug: Store Sorting inconsistencies with Turbo Mode (Lazy Records)
9064 Feat: Implement 'Commits Only' Toggle for DevRank Grid
9065 Feat: Persist Yearly Commits Array in DevRank Data
9063 Perf: Refactor Updater to use Lightweight Contribution Counters
9062 Fix: Cleanup Service incompatible with minified schema
9061 Perf: Enable Turbo Mode for DevRank Store
9060 Fix: RecordFactory defaultValue prevents mapping execution
9059 Optimize & Minify DevRank Data Schema
9058 Feat: DevRank Location Normalizer & Data Enrichment
9057 Refactor DevRank Controls: Split Search & Reorder Fields
9056 Fix: CountryFlag not resetting when value is null
9055 Feat: Configurable renderFullPool for GitHubOrgs Component
9054 Perf: Optimize GitHubOrgs with Node Pooling & Visibility
9053 Perf: Optimize CountryFlag to Prevent Grid Reflows
9052 Perf: Optimize Sparkline Backpressure & Investigate Grid Reflows
9051 Enhancement: Polish Country Field & Inline Label Support
9050 Perf: Optimize DomAccess.syncAligns to avoid scroll thrashing
8941 Feat: Implement Neo.form.field.CountryFlagPicker
7665 Epic: Enhance Knowledge Base MCP with Class Query Tools
9049 Docs: Knowledge Base Enhancement for DevRank Services
9048 Feat: DevRank CLI Interactive Prompts (Inquirer)
9047 Feat: DevRank Whitelist Synchronization & Protection
9046 Fix: DevRank Tracker Timestamp Update Logic
9045 Feat: DevRank Active Pruning & Auto-Cleanup
9044 Fix: DevRank Updater Infinite Loop & Tracker Pruning
9043 Enhancement: DevRank Updater Smart Scheduling & Logs
9042 Enhancement: Dynamic High Star Ranges for Spider
9041 Enhancement: Add Spider Summary Logs
9040 Refactor: Make DevRank Manager a Singleton
9039 Feat: Support .env token auth for DevRank Services
9032 Feat: DevRank Spider Random Walk Strategy
9038 Style: DevRank Grid Selection Overrides Heatmap
9037 Refactor: Dynamic Year Fields in Contributor Model
9036 Perf: Optimize GitHub Avatar Sizes
9035 Feat: GitHubOrgs Component & Grid Column
9034 Feat: DevRank Grid - LinkedIn & Organizations Columns
9033 Refactor: DevRank Spider Checkpointing
9031 Feat: DevRank Cleanup Service
9030 Refactor: DevRank Data Naming Convention & Whitelist
9029 Feat: DevRank Relevance Threshold
9028 Refactor: DevRank Updater Checkpointing
9027 Chore: Add DevRank CLI Scripts to package.json
9026 Chore: Commit DevRank Data Artifacts
9025 Feat: DevRank Data Enrichment (LinkedIn & Orgs)
9024 Refactor: Optimize DevRank User Index Storage
8937 Feat: Discovery Engine - The Spider
9023 Feat: DevRank User Lifecycle Management
9022 Feat: DevRank Backend Service Architecture
9005 Feat: Refactor Portal Header to Framework (using Dynamic Worker Arch)
7644 Feat: Implement PR Syncer for GitHub Workflow
7645 Epic: Refactor and Extend GitHub Sync Service
9021 Create Playwright Unit Tests for Grid-Store Interactions
9020 Create comprehensive Playwright Unit Tests for Grid Row/Cell Pooling
9019 Fix Playwright Teleportation Tests for Fixed-DOM-Order Grid
9018 Remove obsolete component management logic from Grid.Body
9017 Refactor Grid.Body to extend Component.Base and use internal Row Pool
9016 Enhance Knowledge Base Documentation for Grid Architecture Changes
9015 Fix Regression in Cell Selection Model Cycling (Crash in updateRows)
9014 Refactor Grid Row Selection to use Granular Updates and No-Op Checks
9012 Optimize Grid Row Pooling to eliminate moveNode deltas
9011 Polish DevRank Grid Styling and Documentation
9010 Implement cellCls config for Grid Columns
9009 Extract GitHubUser and CountryFlag Grid Columns
9008 Refactor DevRank Grid components to use dedicated classes
9007 Feat: Enhance DevRank Grid Styling (Dark Theme)
9006 Refactor DevRank Controls Button to Header Toolbar
9004 Enhance Grid Row Documentation for Pooling Strategy
9003 Fix dataset attribute mapping in Grid Row VDOM
9002 Fix Grid Row Cell Pooling Move Operations (Regression)
9001 Update Grid Row Cell Border Logic for Pooling
9000 Explicit Grid Container Overflow Handling
8999 Update GridContainer scrollByColumns to target VDOM root
8998 Fix Grid Cell Selection for Pooled Cells
8997 Feat: DevRank Selection Model Tab
8987 enhancement: GridDragScroll: Add delay and minDistance to prevent accidental drags
7601 Create Dynamic OpenAPI Specification Generator for the MCP servers
8996 perf: Implement Adaptive Backpressure for VDOM Updates via Pre-Update Hooks
8995 perf: Increase Grid ScrollManager throttle to prevent worker message flooding
8994 feat: Add get() method to Neo.data.Record
8992 Implement Hybrid Cell Buffering (Pooling) for Grid Rows
8993 Fix Grid Empty View Regression on Column Change
8990 perf: Propagate silent flag to Component Column renderer to suppress scrolling updates
8989 perf: Implement atomic Grid Body updates via explicit suspension flag
8988 bug: rewrite throttle utility to robustly handle trailing edge
8964 RFC: Component-Based Grid Rows (Neo.grid.Row) for Granular Updates
8986 docs: Knowledge Base Enhancement Strategy for Grid Classes (#8964)
8985 refactor: Add getRow helper to GridBody
8984 Fix Grid Row Reactivity & AnimatedChange Column for In-Place Updates
8983 Fix Grid Scrollbar Position and DragScroll ID Mismatch
8982 Fix Grid Horizontal Keyboard Scrolling
8981 Enhance Grid Layout Resilience with overflow: clip
8980 Fix Grid Keyboard Navigation and Focus Layout Shift
8979 Refactor Selection Models: Phase 2 (Cell & Column)
8978 Refactor Selection Models: Phase 1 (Base & Row)
7078 Create Node.js script to standardize and sort module imports
7388 Define the "Sighted" Development Workflow
7614 Rewrite TICKET_STRATEGY.md for GitHub Workflow MCP Server & 2-Way Sync
8977 Implement Surgical DOM Move for Component Columns in Drag Proxy
8976 Fix Grid Cell Animations During Column Reordering
8975 Fix Grid Header Drag Proxy for Row Component Architecture
8969 perf: Implement Batching and Silent Updates for Grid Scrolling (#8964)
8974 refactor: Cleanup Neo.grid.Body and optimize Row/Body responsibilities (#8964)
8973 fix: Component Columns disappear after horizontal scroll due to stale mounted state (#8964)
8972 refactor: Switch Grid Row to explicit updateContent pattern (#8964)
8971 fix: Enable horizontal scrolling by forcing Row VDOM updates on column mount change (#8964)
8970 feat: Commit base implementation of Neo.grid.Row and refactored GridBody (#8964)
8968 refactor: Migrate Component Columns to use Neo.grid.Row lifecycle (#8964)
8967 feat: Implement Reactive Record Updates in Neo.grid.Row (#8964)
8966 refactor: Upgrade Neo.grid.Body to Container and implement Row Pooling (#8964)
8965 feat: Create Neo.grid.Row component (#8964)
8963 Feat: Smooth Data Transitions for Sparklines
8962 Perf: Apply CSS containment to Grid Rows
8961 Fix: Memory Leak in Neo.component.Canvas due to missing destroy()
8960 Fix: Vertical scrolling causes OffscreenCanvas loss in Grid cells
8959 Feat: Implement hideMode for Grid Columns to support OffscreenCanvas buffering
8958 Enhancement: Sparkline Scanner Text Positioning
8957 Fix: Sparkline Pulse Artifact Persistence
8956 Refactor: Move `defaults` Serialization to `ComponentColumn.toJSON`
8948 Epic: Dynamic Worker Architecture & Import Protocol
8955 Feat: Migrate Sparkline Renderer to `src/canvas` & Enforce Defaults
8954 Feat: Generic Sparkline Component & Grid Column
8953 Feat: Optional Canvas Worker Entry Point (`useCanvasWorkerStartingPoint`)
8952 Bug: Dynamic Worker Start triggers Double App Init & Canvas Race Condition
8951 Feat: Smart Initialization for SparklineComponent
8950 Refactor: Move `loadModule` to `Neo.worker.Base`
8949 Feat: `Manager.startWorker` Remote Method
8947 Docs: Sparkline Knowledge Base Enhancement
8946 Feat: Sparkline Physics & Visuals
8945 Feat: Sparkline `usePulse` Config
8944 Feat: Sparkline Pulse Animation
8943 Feat: Interactive Living Sparklines
8940 Feat: Activity Sparkline Column
8942 Refactor: DevRank Grid Location Column (VDOM + SCSS)
8939 Feat: Country Flag Column
8936 Fix: RecordFactory mapping logic not triggering for missing source keys
8935 Feat: Yearly Breakdown Columns & Heatmap
8934 Feat: DevRank Grid Expansion
8933 Feat: Discovery Engine Data Enrichment
8932 Feat: DevRank UI - Grid & Controls Implementation
8931 Feat: DevRank Scaffolding & Data PoC
8929 Feat: Implement Unit Test Agent Workflow (.agent/workflows/unit-test.md)
8928 Feat: Implement call_method tool for Neural Link
8927 Cleanup: Remove unused set_component mapping in AI Client
8924 Feat: Support nested property paths in get_instance_properties
8926 Refactor: ComponentService.serializeComponent to use object parameter
8923 Refactor: Optimize Neural Link get_component_tree for token efficiency
8919 Refine v11.24.0 Release Notes to clarify VDOM determinism
8918 Markdown Component: Support links in headlines

v11.24.0
v11.23.1
v11.23.0
v11.22.0
v11.21.0
v11.20.0
v11.19.1
v11.19.0
v11.18.0
v11.17.1
v11.17.0
v11.16.0
v11.15.0
v11.14.0
v11.13.0
v11.12.0
v11.11.0
v11.10.0
v11.9.0
v11.8.0
v11.7.0
v11.6.1
v11.6.0
v11.5.0
v11.4.0
v11.3.0
v11.2.0
v11.1.0
v11.0.1
v11.0.0
v10.9.0
v10.8.0
v10.7.0
v10.6.0
v10.5.4
v10.5.3
v10.5.2
v10.5.1
v10.5.0
v10.4.1
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v10.3.5
v10.3.4
v10.3.3
v10.3.2
v10.3.1
v10.3.0
v10.2.1
v10.2.0
v10.1.1
v10.1.0
v10.0.2
v10.0.1
v10.0.0
v10.0.0-beta.6
v10.0.0-beta.5
v10.0.0-beta.4
v10.0.0-beta.3
v10.0.0-beta.2
v10.0.0-beta.1
v10.0.0-alpha.5
v10.0.0-alpha.4
v10.0.0-alpha.3
v10.0.0-alpha.2
v10.0.0-alpha.1
v9.16.0
v9.15.0
v9.14.0
v9.13.1
v9.13.0
v9.12.0
v9.11.1
v9.11.0
v9.10.5
v9.10.4
v9.10.2
v9.10.1
v9.10.0
v9.9.0
v9.8.0
v9.7.1
v9.7.0
v9.6.1
v9.6.0
v9.5.0
v9.3.0
v9.2.0
v9.1.0
v9.0.2
v9.0.1
v9.0.0
v8.43.1
v8.43.0
v8.42.0
v8.41.2
v8.41.1
v8.41.0
v8.40.0
v8.39.1
v8.39.0
v8.38.0
v8.37.0
v8.36.0
v8.35.1
v8.35.0
v8.34.0
v8.33.0
v8.32.0
v8.31.1
v8.31.0
v8.30.0
v8.29.0
v8.28.1
v8.28.0
v8.27.1
v8.27.0
v8.26.1
v8.26.0
v8.25.0
v8.24.0
v8.23.0
v8.22.0
v8.21.2
v8.21.1
v8.21.0
v8.20.2
v8.20.1
v8.20.0
v8.19.1
v8.19.0
v8.18.1
v8.18.0
v8.17.1
v8.17.0
v8.16.0
v8.15.0
v8.14.3
v8.14.2
v8.14.1
v8.14.0
v8.13.0
v8.12.0
v8.11.0
v8.10.1
v8.10.0
v8.9.1
v8.9.0
v8.8.0
v8.7.1
v8.7.0
v8.6.2
v8.6.1
v8.6.0
v8.5.0
v8.4.2
v8.4.1
v8.4.0
v8.3.0
v8.2.0
v8.1.3
v8.1.2
v8.1.1
v8.1.0

Frontmatter

id	8971
title	fix: Enable horizontal scrolling by forcing Row VDOM updates on column mount change (#8964)
state	Closed
labels	bugai
assignees	tobiu
createdAt	Feb 3, 2026, 10:00 PM
updatedAt	Feb 3, 2026, 10:07 PM
githubUrl	https://github.com/neomjs/neo/issues/8971
author	tobiu
commentsCount	1
parentIssue	8964
subIssues	[]
subIssuesCompleted	0
subIssuesTotal	0
blockedBy	[]
blocking	[]
closedAt	Feb 3, 2026, 10:07 PM

fix: Enable horizontal scrolling by forcing Row VDOM updates on column mount change (#8964)

Name: Neo.mjs Application Engine
Author: Neo.mjs

Closed v12.0.0 bugai

tobiu commented on Feb 3, 2026, 10:00 PM

Problem: Horizontal scrolling updates mountedColumns in GridBody. However, createViewData iterates over rows and calls row.set({ record, rowIndex }). Since vertical scrolling hasn't occurred, record and rowIndex are identical to their current values. The Neo.mjs config system detects no change and aborts the setter, preventing afterSetRecord (and thus createVdom) from firing. As a result, the Row VDOM is not updated to reflect the new set of visible columns.

Solution: Utilize the force parameter in createViewData (introduced in #8970). Update GridBody.afterSetMountedColumns to call this.createViewData(false, true). This will bypass the config equality check and explicitly trigger item.createVdom().

Tasks:

Modify src/grid/Body.mjs: Update afterSetMountedColumns to pass true for the force parameter.

tobiu added the bug label on Feb 3, 2026, 10:00 PM

tobiu added the ai label on Feb 3, 2026, 10:00 PM

tobiu assigned to @tobiu on Feb 3, 2026, 10:01 PM

tobiu referenced in commit 6cee400 - "fix: Enable horizontal scrolling by forcing Row VDOM updates on column mount change (#8971)" on Feb 3, 2026, 10:07 PM

tobiu Feb 3, 2026, 10:07 PM

Input from Gemini 3 Pro:

✦ I have updated GridBody.mjs to force a view update when mountedColumns changes. This ensures that even if the row records are identical, the VDOM is regenerated to reflect the new column visibility.

Horizontal scrolling should now work as expected.

tobiu closed this issue on Feb 3, 2026, 10:07 PM

tobiu added parent issue #8964 on Feb 3, 2026, 10:12 PM