Version 1.0.15 — August 8, 2026

  Color Themes & Dark Mode

  - Full dark mode: every panel, the grid, tab bar and status bar follow Light / Dark / System
  - System mode tracks macOS appearance changes live
  - Custom color themes via .sumrtheme files — double-click to install and apply
  - Color Scheme menu: Light / Dark / System at the top, Light Theme and Dark Theme sub-menus below
  - Picking a theme also switches to its mode; "Open Theme Folder…" opens the Themes directory
  - Window chrome (menus, controls) matches the active theme's light/dark base
  - Bundled themes: Summer Light, Summer Dark, Twilight, Dracula, Catppuccin (Latte, Frappé, Macchiato, Mocha),
   Ayu (Light, Dark, Mirage), Base16 Ocean, Solarized Light/Dark, Tokyo Night (Night, Storm, Light), Houston, OneCandy
  - Show Gridlines and Alternating Rows apply immediately, without "Set as Default"

  Duplicates Panel (new)

  - Diagnoses what kind of duplication a table has (exact copies, conflicting rows, or a child entity fanned out
   across rows) and points the grid at the evidence
  - Ranked candidate keys and per-column analysis
  - Commit as a cleaned new table (First / Last / Most-filled winner rules) or bookmark the duplicate rows
  - Every commit re-verifies real values before removing a row
  - Split Table integration: pull a fanned-out group of columns into its own keyed table
  - Column Clusters (⌘⌃K) — declare a set of columns that represent one thing; reachable from Schema and Duplicates
  - New function: GROUP_COUNT()

  Faster Loading

  - Large files open much faster — normalization is roughly 10× faster (date columns far more), and a
   100k-row file loads in about a third of the time
  - Changing a column's type no longer stalls
  - Column types are double-checked in the background after load and upgraded if the sample was too narrow
  - Faster distinct-value and frequency stats in the Column Summary panel

  Trash

  - Trashed rows are excluded from summary rows, Column Summary stats and the Summary panel
  - Commands to restore trashed rows and columns
  - Summary panel row counts and dimension stats refresh live

  File Opening & Import

  - Text encoding detection: UTF-8, UTF-16 (with BOM) and Windows-1252; BOM stripped
  - Quote-aware delimiter detection
  - Ragged CSV rows are widened rather than truncated
  - 10 MB limit enforced on every open path
  - Open panel limited to CSV / TSV / Excel types
  - Dropping several files reports any that were skipped
  - Recently Viewed shows real file sizes

  Reliability Fixes

  - Grid undo is disabled for this release (it could restore inconsistent state); text-field undo still works
  - Annotations, selection, trash and lookup filters follow the right rows after deleting or inserting rows
  - Fixed a data race when normalizing columns in parallel
  - Documents are released when their last tab closes
  - Editing a computed column no longer wipes its per-column formatting
  - Saved .summer column settings now reload correctly
  - Key flags survive row deletes; combined-tab slices keep column metadata
  - Filtered summary rows populate under bookmark-only or lookup-only filters
  - Sensitive columns stay masked in the Row Selection panel, raw mode, tooltips and copy
  - Table Copy and filter-view tabs inherit the source tab's display settings
  - Active tab stays put when closing an earlier tab
  - Close All Windows only closes document windows
  - Bookmark filter only activates when bookmarks exist
  - Additional help text on menu commands

  Performance

  - Selection clicks no longer trigger a full display rebuild
  - Filter regexes are compiled once and cached