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v13.3.1

Tickets 1-2

v13.3.0
v13.2.0
v13.1.0
v13.0.0
v12.1.0

Tickets 201-213
Tickets 101-200

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
9569 Epic: Neo.mjs v12.1 Release Notes
9568 Fix code examples in DataPipelines.md guide
9567 Update AI_QUICK_START.md to include Antigravity configuration
9566 Enhance `agent` parameter formatting in GitHub Workflow MCP Server
9565 Regression: Store.load({url}) fails when Store has no initial URL config
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
9552 Docs: Create Learning Guide for the Unified Data Pipeline Architecture
9551 Examples: Implement unified Data Pipeline showcases
9550 Refactor(data): Implement Store-to-Pipeline Legacy Bridge
9549 Remove `console.log` statements causing noise in unit tests
9548 `calcValueBands` broken state initialization on `splice` (StoreValueBanding test failure)
9547 Fix RemoteMethodAccess for Main Thread Addons and Instance-to-Instance ID collision
9546 Refactor Pipeline IPC to use Declarative Remote Configs (Instance Proxies)
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
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9541 Remove outdated and redundant .github/CONCEPT.md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
9539 Add TreeStore override for updateKey()
9538 Enhance Collection.updateKey() to support filtered collections (allItems map)
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
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
9503 TimelineCanvas regression: Canvas not showing due to SharedCanvas getCanvasId() mismatch with componentId
9502 Migrate existing Stores to the new Pipeline architecture
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
9483 Grid: Implement Reactive locked Config and Run-Time Column Reordering
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
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
9469 TreeStore: internalIdMap desyncs after bulk operations (expandAll), breaking selection
9468 Fix memory leak in TreeStore.#rebuildKeysAndCount()
9467 Fix TreeStore.collapse() failing after expandAll() due to out-of-sync Collection map
9466 TreeGrid Big Data Demo: Create E2E Tests
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
9461 Epic: TreeGrid Big Data Demo
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)
9457 Grid: Implement Mathematical Column Layout Engine
9456 Epic: Buffered Grid - High-Performance Locked Columns (`locked: 'start' | 'end'`)
9455 Integrate RPC API into Pipeline Architecture (Connection.Rpc)
9454 Implement Push-Based WebSocket Integration in Data Pipeline
9453 Implement Pipeline IPC and Remote Execution Routing
9452 Connection Foundation and Parser Refactoring
9451 Create Pipeline Cornerstone and Refactor Store Implementation
9450 Enhance Data Worker to Instantiate Dynamically Loaded Modules
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

Tickets 1-100

Frontmatter

id	9571
title	Draft Release Notes: Locked Columns & Value Banding
state	Closed
labels	documentationai
assignees	tobiu
createdAt	Mar 27, 2026, 11:37 AM
updatedAt	Mar 27, 2026, 11:44 AM
githubUrl	https://github.com/neomjs/neo/issues/9571
author	tobiu
commentsCount	1
parentIssue	9569
subIssues	[]
subIssuesCompleted	0
subIssuesTotal	0
contentTrust
projected
quarantined	0
signals	[]
blockedBy	[]
blocking	[]
closedAt	Mar 27, 2026, 11:44 AM

Draft Release Notes: Locked Columns & Value Banding

Closed v12.1.0/archive-v12-1-0-chunk-2 documentationai

tobiu commented on Mar 27, 2026, 11:37 AM

Sub-task of Epic #9569.

This ticket tracks the drafting of the Grid Locked Columns & Value Banding section for the v12.1 release notes.

Scope:

locked: 'start' | 'end' columns.
Mathematical Column Layout Engine.
Cell Pooling Bypass Logic.
Grid Value Banding.
Multi-Body Architecture caveat (browser compositor synchronization limitations).

tobiu Mar 27, 2026, 11:44 AM

Drafted the section and pushed to the repository.