DOC20_R4_3_DELTA_V7_11_6_ALT.md
Current Specs/DOC20/DOC20_R4_3_DELTA_V7_11_6_ALT.md
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---
# DOC20 R4.2 → R4.3 Spec Delta: V7.11.6 Alt — Vertical Tabs, Workspaces, Nav Restructure
**Date:** 2026-04-08
**Source:** V7.11.6 Alt mockup session (V1 through V8, 8 iterations)
**Mockup:** `Q_UNIFIED_WORKSPACE_V7_11_6_ALT_V8.jsx` (1,547 lines)
**Revision:** R4.3
---
## CHANGELOG ENTRY
| Date | Context | Sections | Summary |
|------|---------|----------|---------|
| 2026-04-08 | V7.11.6 Alt mockup session — vertical tabs, workspaces, nav restructure, bookmark improvements, icon fixes | §0.4, §1.6 (updated), §1.12 (new), §6.20.2 (rewritten), §6.20.4–6.20.7 (replaced by §6.20.4A), §6.20.7B (new), §6.20.9 (updated), §6.20.13–14 (updated), §6.20.17 (updated), §6.23 (updated), §6.24 (updated), §6.26 (new — Workspaces), §7 (schemas), §8 (commands) | R4.3: Vertical Tabs, Workspaces, Nav Restructure — Nav pane restructured from flat list into three collapsible sections (Pages, Tabs, Workspaces) with accent-blue headers and 2px tinted dividers. Vertical tab list becomes the primary tab management surface (always visible in Nav pane regardless of horizontal tab bar state). New `showHorizontalTabs` toggle hides horizontal tab bar for clean vertical-only workflow; browser auto-switch disabled when horizontal tabs hidden. Chats promoted from dedicated section to expandable Page entry with disclosure arrow (up to 6 items). New Workspaces system for saving/restoring entire view configurations (tabs, split state, browser mode) with auto-save on switch, timestamp-labeled unsaved state, named workspaces with color/pin/rename/delete. Tab group management enhanced: 3-dot menus with rename/color picker/New Tab in Group/Close Group/Ungroup/Delete Group; tab groups button 3-dot dropdown for Create New Tab Group + group list. Individual tab right-click: Close, Duplicate, Pin, Rename, Add to Group submenu, New Group, Remove from Group, Move to Right Pane. Close All per pane in split view. Left nav rail expanded from 6→8 items (added horizontal tabs toggle, moved chat column into views cluster). Sidebar icon differentiated from Columns icon. Incognito icon changed I.Mask→I.EyeOff. Incognito Tab restored to [+] dropdown. NavIcon renders SVG in [+] dropdown Open section. Bookmarks: X-to-delete on hover, right-click rename context menu. Recent Pages: collapsible, default collapsed, X to clear. Search bar labels: "Selection"/"All". Browser tab spacing improved. Status bar tabs count removed. |
---
## §0.4 — Core Design Choices (APPEND)
Add after the split view bullet:
- **Vertical tabs.** The Nav pane's Tabs section is a full vertical tab list that is always visible regardless of whether the horizontal tab bar is shown. The `showHorizontalTabs` toggle (left rail) hides the horizontal tab bar for a clean, vertical-only workflow. When hidden, the browser column does NOT auto-switch modes based on active tab type — user stays in Nav mode unless manually switching. This is the Chrome-equivalent "Show Vertical Tabs" feature, adapted for a workspace that manages more than web pages.
- **Workspaces.** Saved view configurations — all open tabs, tab groups, split view state, active tabs, browser column mode — persist as named workspaces. Auto-save on switch. Unnamed working state displays a timestamp. Workspaces enable instant context-switching between cases, projects, or workflows.
- **Nav pane as scrollable column.** The Nav pane uses a single scrollable column layout (not flex-competing sections). Pages, Tabs, and Workspaces each take their natural height and stack contiguously. No whitespace gaps. The entire column scrolls as one unit when content exceeds browser column height.
---
## §1.6 — Unified Workspace Shell (REPLACE)
Replace the current bullet list with:
The Q Unified Workspace is the primary interface for the entire Q app. The workspace shell provides:
- a **universal tab system** supporting 9 content types (note, doc, web, clips, chat, room, task, todo, utility) with optional Chrome-style horizontal tab bar (R4, R4.3);
- a **vertical tab list** in the Nav pane as the primary tab management surface, with tab groups, search, and per-pane split view management (R4.3);
- a **4-mode browser column** (Nav, Browser, Notes, Web) where the Nav tab is restructured into three collapsible sections: Pages, Tabs, Workspaces (R4.3);
- a **left nav rail** (8 items — Q logo, Quick Command toggle, browser toggle, horizontal tabs toggle, split view toggle, chat column toggle, Activity with badge, Settings) (R4.3 — updated);
- a **session system** for temporal workspace organization;
- a **split view** for side-by-side panes (R4), with Left/Right Pane management in vertical tabs (R4.3);
- a **floating palette** (always-on-top mini workspace, see §1.8) (R4);
- a **workspaces system** for saving and restoring entire view configurations (R4.3).
The workspace shell is defined in §6.20.
### §1.12 — Workspaces System (NEW)
A Workspace is a saved snapshot of the entire view configuration: all open tabs (with their positions and group assignments), tab groups, split view state (on/off, which tabs in which pane, divider position), browser column mode and state, active tab in each pane, and right panel state. Workspaces enable instant context-switching: "I'm working on Henderson. Switch to Brooge." — one click saves the current state and loads the target workspace.
Workspace behavior:
- **Auto-save on switch.** When switching from a named workspace, the current state is silently saved to that workspace. No "do you want to save?" prompts.
- **Unnamed working state.** If the user is not in a named workspace and switches to one, the current state is saved as an unnamed entry displaying a timestamp (e.g., "Apr 8, 3:30 PM"). This entry always sits at the top of the Workspaces list. It is overwritten by each subsequent unnamed save. Right-click → "Save as Workspace…" promotes it to a named workspace.
- **Named workspaces** support rename, color assignment (10-color picker), pin to top, and delete.
See §6.26 for full specification.
---
## §6.20.2 — Left Nav Rail (REPLACE)
The left nav rail contains exactly **8** items organized into sections (R4.3 — updated from 6):
```
┌──────┐
│ Q │ ← Q logo (26×26px, accentBtn bg, white text)
│ │
│ ⚡ │ ← Quick Command / Floating Palette toggle (⌥Space) — Zap icon
│ ⎕ │ ← Browser column toggle (⌘B) — Sidebar icon (single left vertical line)
│ ≡ │ ← Horizontal tab bar toggle — List icon. Shows/hides horizontal tab bar.
│ ⫼ │ ← Split View toggle — Columns icon (single center vertical line). See §6.24.
│ 💬 │ ← Right chat column toggle — MsgCircle icon
│------│ ← Divider (20px wide, #444)
│ 🔔 │ ← Activity — opens utility tab. Red badge (8px) for unread notifications.
│ ⚙ │ ← Settings — opens utility tab
│------│ ← Divider (#444)
│ │
│ flex │ ← Spacer
└──────┘
```
- Width: 44px fixed
- Background: bgSidebar (#131820)
- Icons: 16px, color #888 inactive / #fff active (active = corresponding panel is open)
- Buttons: 32×32px, borderRadius sm, no border
- Dividers: 20px wide, #444 (R4.3 — brightened from #333)
- Quick Command button tooltip shows `(⌥Space)`
**Icon changes (R4.3):**
- **Sidebar** icon: rectangle with single vertical line at the left third (`M3.75 4.875c0-.621... M8.25 3.75v16.5`). Distinct from Columns.
- **Columns** icon: rectangle with single vertical line through center (`M3.75 4.5h16.5c... M12 4.5v15`). Distinct from Sidebar.
- The views cluster (Browser → Horizontal Tabs → Split View → Chat Column) groups all layout toggles together above the first divider. Activity and Settings sit below it.
**`showHorizontalTabs` toggle behavior:**
- When ON (default): horizontal tab bar is visible above the main content area. Browser column auto-switches mode based on active tab type (notes → Notes mode, web → Web mode, etc.).
- When OFF: horizontal tab bar is hidden. Browser column does NOT auto-switch — stays in current mode unless user manually switches. The Nav pane's vertical tab list becomes the sole tab navigation surface. A thin accent border still appears on the content area edge.
---
## §6.20.4A — Nav Tab: Restructured Layout (NEW — replaces §6.20.4, §6.20.5, §6.20.6, §6.20.7, §6.20.7A)
The Nav tab is restructured from a flat list into **three collapsible sections** within a single scrollable column (R4.3). Each section takes its natural height — no flex competition, no whitespace gaps. The entire Nav pane scrolls as one unit.
#### Section headers
All three section headers share the same styling:
- Font: 11px, fontWeight 700, textTransform uppercase, letterSpacing .06em
- Color: `accentBtn` (#31588c) — the Q brand blue
- Chevron: size 9, also accentBtn color, toggles between ChevR (collapsed) / ChevD (expanded)
- Clicking the header toggles collapse. When collapsed, only the header text shows.
#### Section dividers
Each section has `borderBottom: 2px solid ${accentBtn}25` — a 2px accent-blue-tinted line (25% opacity). This provides clear visual separation between Pages, Tabs, and Workspaces.
---
#### §6.20.4A.1 — PAGES section
The Pages section replaces the old Chats section (§6.20.4) + Activity link (§6.20.5) + Pages section (§6.20.6).
**Chats as expandable Page entry:**
Chats is no longer a separate section. It is a row in the Pages list with a disclosure arrow:
```
▾ PAGES
🔔 Chats ▸ ← clicking "Chats" opens the Chats management page
★ Henderson prep chat 2m ← expanded: up to 6 items (pinned first, then recent)
● Brooge research 1h
● Daily standup 3h
☑ Tasks
📁 Projects
💾 Knowledge
💬 Forums & Panels
👤 Agents
🔌 Skills & Connectors
◇ Overlays & Prompts
🪣 Context Buckets
⚙ Settings
```
- The disclosure arrow (▸/▼) is to the right of "Chats", size 11, color `textSec`. Click to expand/collapse the inline chat list.
- The expanded list shows up to **6 items**, prioritized: pinned chats first (up to 6), then most recent to fill remaining slots.
- Clicking the "Chats" label itself opens the Chats management page as a utility tab — this IS the "See All" action.
- Page items: fontSize 12.5px, padding "5px 10px", gap 7, NavIcon size 13.
- Expanded chat items: fontSize 10.5px, padding "3px 10px", indented 12px from left.
All other pages render as simple clickable rows with NavIcon + label. Clicking opens the corresponding utility tab.
---
#### §6.20.4A.2 — TABS section
The Tabs section replaces the old Open Tabs (§6.20.7) and Tab Groups (§6.20.7A) sections. It is the primary tab management surface.
**Header with action buttons:**
```
▾ TABS 🔍 ⊞ ⋮
```
The header line contains (right-aligned, only shown when section is expanded):
1. **Search** button (🔍) — toggles inline search field. When active, filters the tab list by title.
2. **Tab Groups** button (⊞) — toggles the Tab Groups list below the search.
3. **Tab Groups 3-dot** button (⋮) — opens a dropdown:
- "Create New Tab Group" (+ icon) — prompts for name, creates group with auto-assigned color
- Divider
- List of all existing tab groups with colored dot + name. Clicking a group expands it and switches to its first tab.
**Tab list:**
All open tabs render as a vertical list. Tab groups appear first (collapsible), then ungrouped tabs.
*Tab group rendering:*
```
● Research ▼ ⋮
📄 Case law search ×
📄 EDGAR results ×
📄 Expert CV ×
```
- Group header: colored Dot (6px) + label (fontWeight 550, color textSec, fontSize 11.5px) + collapse arrow (right of name, size 11, group color) + 3-dot menu (Dots icon, size 10, color textSec, opacity .5→1 on hover).
- Group header has `margin: "0 2px"` matching all tab rows.
- Collapse arrow is to the **right** of the group name, not the left. Color matches the group's assigned color.
- Grouped tabs: padding `"3px 8px 3px 22px"` with `borderLeft: 2px solid ${groupColor}20`. The right padding (8px) matches ungrouped tabs for X button alignment.
*Ungrouped tab rendering:*
```
📄 Henderson MTD brief ×
🌐 Paramount MIL — PACER ×
💬 Brooge research chat ×
```
- fontSize 11.5px, padding "3px 8px", margin "0 2px".
- Active tab: backgroundColor `accentBtn+"08"`, fontWeight 600.
- Hover (non-active): backgroundColor bgInput.
- Close X: size 9, color textTer, opacity .4→1 on hover. Aligned at same right position across all tab types.
**X button alignment rule:** All tab rows (grouped, ungrouped, different sections) use identical right padding (8px) and margin (0 2px) so the X close buttons form a clean vertical column.
*Bottom actions:*
```
+ New tab × Close all
```
"New tab" (left, accent on hover) and "Close all" (right, red on hover). Shown in both split and non-split modes. In split mode, the left pane shows its own "Close all" for left pane tabs only.
**Tab context menu (right-click on any vertical tab):**
| Action | Behavior |
|--------|----------|
| Close | Closes the tab |
| Duplicate | Creates a copy |
| Pin | Pins the tab |
| Rename | (notes only) Prompts for new name |
| --- | separator |
| Add to {Group Name} | (per existing group) Moves tab into group |
| New Group… | Creates new group containing this tab |
| Remove from Group | (if in group) Removes tab from group |
| --- | separator (split mode only) |
| Move to Right Pane | (split mode only) Moves tab from left to right pane |
**Tab group context menu (3-dot or right-click on group header):**
```
┌─────────────────────────┐
│ [Research____________] │ ← rename input (auto-focused)
│ ● ● ● ● ● ● ● ● ● ● │ ← 10-color picker (14px circles)
│─────────────────────────│
│ + New Tab in Group │
│ Close Group │ ← collapses group (does not delete)
│─────────────────────────│
│ Ungroup │ ← removes group, tabs become ungrouped
│ 🗑 Delete Group │ ← red — deletes group AND all its tabs
└─────────────────────────┘
```
**Drag-and-drop:** Tabs can be dragged into a group by dropping on the group's tab area. The dropped tab's `group` field is set to the target group ID.
**Split view in vertical tabs:**
When split mode is active, the Tabs section shows two labeled subsections:
```
← LEFT PANE +
● Henderson MTD brief ×
📄 Paramount brief ×
+ New tab × Close all
─────────────────────────────────
→ RIGHT PANE +
📄 Christensen_CV.pdf ×
× Close all
```
- Left Pane header: ArrowL icon (size 10) + "LEFT PANE" (fontSize 10.5, fontWeight 600, color accentBtn, uppercase) + [+] button
- Right Pane header: ArrowR icon (size 10) + "RIGHT PANE" (fontSize 10.5, fontWeight 600, color green, uppercase) + [+] button
- Each pane has its own "Close all" at the bottom (shown when pane has tabs).
- Tab groups only appear in the left pane tab list. Right pane tabs are always ungrouped.
- Right-click on a left pane tab includes "Move to Right Pane" option.
---
#### §6.20.4A.3 — WORKSPACES section
See §6.26 for full specification.
The Workspaces section renders at the bottom of the Nav pane:
```
▾ WORKSPACES +
🕐 Apr 8, 3:30 PM ← unsaved state (italic, timestamp)
● Henderson Trial active ← named, orange dot, "active" badge
📌 ● Brooge Discovery ⋮ ← pinned, blue dot, 3-dot menu
● Daily Workflow ⋮
💾 Save current as workspace
```
- Header has [+] button (right-aligned) for creating a new blank workspace.
- Unsaved state at top with Clock icon, timestamp in italic.
- Named workspaces with colored Dot, name, optional pin icon, 3-dot menu on hover.
- "Save current as workspace" link at bottom.
- Pinned workspaces sort to top.
---
## §6.20.7B — Nav Pane Auto-Switch Behavior (NEW)
When `showHorizontalTabs` is ON (horizontal tab bar visible), the browser column auto-switches mode based on the active tab's content type:
| Active tab type | Browser column mode |
|----------------|-------------------|
| note, clips | Notes |
| web | Web (Bookmarks) |
| chat, utility, todo | Nav |
| doc | Browser |
When `showHorizontalTabs` is OFF (vertical tabs only), **auto-switch is disabled**. The browser column remains in its current mode unless the user manually clicks a mode tab. This prevents disorienting mode switches when navigating via the vertical tab list.
This behavior is controlled by the `browserAutoSwitch` setting. Default: `true` when horizontal tabs visible, `false` when hidden. Can be overridden in Settings.
---
## §6.20.9 — Bookmarks Browser Mode (UPDATE)
Append to the existing bookmarks section:
**Bookmark item interactions (R4.3):**
- **X to delete on hover.** Each bookmark item shows an X button (size 9, color textTer) on the right edge when hovered. Opacity transition 0→1. Click to delete with toast confirmation.
- **Right-click context menu.** Right-clicking any bookmark opens:
- Rename — prompts for new title
- Open in New Tab
- separator
- Delete (red, trash icon)
**Recent Pages (R4.3):**
- The Recent Pages section is **collapsible** with a chevron header.
- **Default: collapsed.** User clicks the header to expand and see browsing history.
- Header has an **X button** (right-aligned) to clear all recent pages.
- When expanded, shows recent pages with favicon, title, and time-ago indicator.
---
## §6.20.13–14 — Chrome-Style Tab Bar (UPDATE)
Append:
**Horizontal tab bar conditional rendering (R4.3):**
The entire horizontal tab bar (including the [+] dropdown and split view toggle) is conditionally rendered based on `showHorizontalTabs`. When hidden, no horizontal tab UI is shown above the content area.
**Non-active tab spacing (R4.3):** Non-active browser mode tabs have `borderLeft` and `borderRight` set to `${borderLight}40` for visual separation between tabs. This prevents tabs from visually merging at narrow widths.
---
## §6.20.17 — Status Bar (UPDATE)
Remove the "tabs" count from the status bar. The status bar shows:
- Session timer (Clock icon + Xh Ym)
- Clips count (Scissors icon + N clips)
The tab count is removed as redundant — the vertical tab list provides this information at a glance.
---
## §6.20.30J — [+] Dropdown (UPDATE — 3 items)
1. **Incognito icon.** The incognito tab option uses `I.EyeOff` (Lucide slashed-eye icon), not `I.Mask`. This matches the incognito indicator on tabs themselves.
2. **Incognito Tab option.** The [+] dropdown Create section includes "Incognito Tab" (EyeOff icon, color textTer) after "New Web Tab".
3. **NavIcon in Open section.** The Open section uses `<NavIcon id={p.id} size={12}/>` to render proper SVG icons, not raw string references.
---
## §6.23 — Icon System (UPDATE)
Add to the icon assignment table:
| Context | Icon ID | Source |
|---------|---------|--------|
| Incognito tab/indicator | `EyeOff` | Lucide — slashed eye. Replaces `Mask`. |
| Browser column toggle (left rail) | `Sidebar` | Custom — rectangle with single vertical line at left third |
| Split view toggle (left rail) | `Columns` | Custom — rectangle with single vertical line at center |
| Horizontal tabs toggle (left rail) | `List` | Heroicons — three horizontal lines |
| 3-dot menu | `Dots` | Custom — three vertical dots (12/12.75/18.75 centers, strokeWidth 2.5) |
**Sidebar vs Columns icon disambiguation (R4.3):**
- `Sidebar`: left-weighted split (`M8.25 3.75v16.5` — line at ~34% from left)
- `Columns`: center split (`M12 4.5v15` — line at 50%)
These are visually distinct at 16px rendering size. The Sidebar icon suggests "open/close a side panel" while Columns suggests "split into two equal panes."
---
## §6.24 — Split View (UPDATE)
Append:
**Split view in vertical tabs (R4.3):**
When split mode is active, the Nav pane's Tabs section displays two labeled subsections: Left Pane and Right Pane. See §6.20.4A.2 for full rendering spec. Each pane has independent [+] and "Close all" buttons. The split view toggle is accessible from the left nav rail (always visible) regardless of horizontal tab bar state.
---
## §6.26 — Workspaces (NEW)
### §6.26.1 — Overview
A Workspace is a named, persistable snapshot of the user's entire view configuration. It enables instant context-switching between different work contexts (cases, projects, daily workflows) by saving and restoring:
- All open tabs (with their content type, title, icon, URL/note ID/chat ID)
- Tab group assignments and group state (collapsed/expanded)
- Split view state (on/off, which tabs in which pane, divider position)
- Active tab in each pane
- Browser column mode and state
- Right panel state (open/closed, which tab)
### §6.26.2 — Workspace Schema
```typescript
interface Workspace {
id: string; // "ws" + timestamp
name: string | null; // null = unsaved state
saved_at: string; // ISO timestamp, updated on every auto-save
color: string | null; // 10-color picker, null for unsaved
pinned: boolean; // pinned workspaces sort to top
isUnsaved: boolean; // true = unnamed working state
// Snapshot fields:
tabs: TabSnapshot[]; // all tabs in left/main pane
activeTabId: string | null;
splitMode: boolean;
splitTabs: TabSnapshot[]; // tabs in right pane (if split)
splitActiveTabId: string | null;
splitWidth: number; // right pane percentage
browserMode: string; // "nav" | "browser" | "notes" | "bookmarks"
rightOpen: boolean;
rightTab: string;
tabGroups: TabGroupSnapshot[];
}
interface TabSnapshot {
id: string;
type: string; // "note" | "doc" | "web" | "chat" | ...
icon: string;
title: string;
color: string;
group?: string; // tab group ID
url?: string; // for web tabs
noteId?: string; // for note tabs
chatId?: string; // for chat tabs
}
interface TabGroupSnapshot {
id: string;
label: string;
color: string;
collapsed: boolean;
}
```
### §6.26.3 — Switch Behavior
1. User clicks a named workspace in the Workspaces list.
2. If currently in a named workspace: auto-save current state to that workspace's snapshot.
3. If currently in unnamed state: auto-save to the unnamed workspace entry (overwrite previous unnamed state).
4. Load the target workspace's snapshot: close all current tabs, open saved tabs, restore tab groups, restore split view, restore browser mode, set active tabs.
5. Set `activeWorkspaceId` to the target workspace ID.
### §6.26.4 — Workspace Context Menu
Right-click or 3-dot (⋮) on any named workspace:
```
┌─────────────────────────┐
│ [Henderson Trial_____] │ ← rename input (auto-focused)
│ ● ● ● ● ● ● ● ● ● ● │ ← 10-color picker
│─────────────────────────│
│ 📌 Pin to Top │ ← toggles pinned state
│─────────────────────────│
│ 🗑 Delete Workspace │ ← red, trash icon
└─────────────────────────┘
```
### §6.26.5 — EC Commands
```
WorkspaceCreateCommand { name, color }
WorkspaceSaveCommand { workspace_id, snapshot }
WorkspaceSwitchCommand { workspace_id }
WorkspaceRenameCommand { workspace_id, name }
WorkspaceColorCommand { workspace_id, color }
WorkspacePinCommand { workspace_id, pinned }
WorkspaceDeleteCommand { workspace_id }
```
### §6.26.6 — Nav Pane Rendering
- Section header: "WORKSPACES" in accent blue, with [+] button for new workspace.
- Unsaved state: Clock icon + formatted timestamp (e.g., "Apr 8, 3:30 PM"), italic, at top of list.
- Named workspaces: sorted by pinned first, then by saved_at descending.
- Each workspace: optional Pin icon (if pinned) + colored Dot (7px) + name + "active" badge (if active) + 3-dot menu (opacity .4→1 on hover).
- "Save current as workspace" link at bottom (Save icon + text, color textTer → accentBtn on hover).
---
## §6.20.9 — Browser Search Bar (UPDATE)
The scope toggle in the browser search bar uses:
- **"Selection"** (when filtering to current view/scope) — replaces "This View"
- **"All"** (when searching everywhere) — replaces "Everywhere"
---
## §7 — Schemas (ADDITIONS)
Add `WorkspaceSchema` per §6.26.2.
Add to `TabSchema`:
```typescript
// Existing fields...
incognito?: boolean; // incognito tab flag
// Icon field uses string IDs per §6.23, including "eyeOff" for incognito
```
## §8 — Commands (ADDITIONS)
Add Workspace commands per §6.26.5.
Add:
```
ShowHorizontalTabsCommand { visible: boolean }
BrowserAutoSwitchCommand { enabled: boolean }
```
---
## §12 — Cross-Doc Obligations (ADDITIONS)
| Target | Obligation | Status |
|--------|-----------|--------|
| DOC21/22 | Vertical tab list rendering, workspaces section, 3-collapsible-section Nav layout, workspace context menus, tab group 3-dot menus | PENDING |
| EC Core | Workspace CRUD commands, workspace snapshot persistence, ShowHorizontalTabs/BrowserAutoSwitch settings | PENDING |
---
## Summary of Sections Modified
| Section | Action | Description |
|---------|--------|-------------|
| §0.4 | APPEND | Vertical tabs, workspaces, scrollable nav pane design choices |
| §1.6 | REPLACE | Updated workspace shell description (8-item rail, vertical tabs, workspaces) |
| §1.12 | NEW | Workspaces system overview |
| §6.20.2 | REPLACE | Left nav rail expanded 6→8 items, icon disambiguation, divider color |
| §6.20.4–7 | REPLACED BY §6.20.4A | Old flat Nav sections replaced by 3-section structure |
| §6.20.4A | NEW | Full spec: Pages (with expandable Chats), Tabs (vertical list, groups, split panes), Workspaces |
| §6.20.7B | NEW | Auto-switch behavior spec |
| §6.20.9 | UPDATE | Bookmark X-to-delete, right-click rename, collapsible Recent Pages |
| §6.20.13–14 | UPDATE | Conditional horizontal tab bar, non-active tab borders |
| §6.20.17 | UPDATE | Tabs count removed from status bar |
| §6.20.30J | UPDATE | Incognito icon, incognito dropdown option, NavIcon in Open section |
| §6.23 | UPDATE | 5 new icon entries, Sidebar/Columns disambiguation |
| §6.24 | UPDATE | Split view vertical tab management |
| §6.26 | NEW | Complete Workspaces system spec (6 subsections) |
| §6.20.9 (search) | UPDATE | "Selection"/"All" labels |
| §7 | ADD | WorkspaceSchema, TabSchema incognito field |
| §8 | ADD | Workspace commands, ShowHorizontalTabs, BrowserAutoSwitch |
| §12 | ADD | Cross-doc obligations for DOC21/22 and EC Core |