dev: set version 0.4.0

Exports Neo4j entities to source files and updates CHANGELOG with:
- 32 new persons (Ancient Rome, WWI leaders, Russian Revolution, composers)  
- 29 new events (WWI, Russian Revolution, Ancient Rome, diplomatic buildup)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

Author: omarkohl

CHANGELOG.md

@@ -9,6 +9,29 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 _Nothing yet._
 
+## [0.4.0] - 2026-01-20
+
+### Added
+- Ancient Rome: Marcus Aurelius, Antoninus Pius, Lucius Verus, Faustina the Younger, Lucilla, Bruttia Crispina, Commodus, Epictetus, Pax Romana, Antonine Plague, Marcomannic Wars
+- Classical composers: Wolfgang Amadeus Mozart, Franz Schubert
+- WWI: World War I, Battle of Tannenberg, First Battle of the Marne, Battle of Verdun, Battle of the Somme, Gallipoli Campaign, German Spring Offensive (Kaiserschlacht), Armistice of 11 November 1918
+- WWI leaders: Wilhelm II, Theobald von Bethmann Hollweg, Erich von Falkenhayn, Paul von Hindenburg, Erich Ludendorff, Helmuth von Moltke the Younger, Alfred von Tirpitz, Ferdinand Foch, Philippe Pétain, Douglas Haig, David Lloyd George, Georges Clemenceau, Woodrow Wilson, John J. Pershing, Gavrilo Princip
+- WWI diplomatic buildup: Franco-Russian Alliance (1894), Entente Cordiale (1904), Anglo-Russian Entente (1907), First Moroccan Crisis, Bosnian Crisis, Second Moroccan Crisis, Balkan Wars, July Crisis
+- Russian Revolution: Russian Revolution of 1905, February Revolution, October Revolution, Vladimir Lenin, Leon Trotsky, Alexander Kerensky, Alexandra Feodorovna (Alix of Hesse), Grigori Rasputin, Treaty of Brest-Litovsk, Russian Civil War, Execution of the Romanovs
+- Post-WWI: Paris Peace Conference, Treaty of Versailles, Mustafa Kemal Atatürk
+- Early 20th century diplomacy: Edward VII, Russo-Japanese War, Dismissal of Bismarck
+- Pronunciations for many names
+
+### Changed
+- Improved relationships for many existing persons and events
+- Cleaned up region tags (consolidated Americas regions)
+
+### Development
+- Neo4j integration improvements: tag support, picture field support
+- Enhanced entity-manager skill documentation
+- Added historical accuracy policy
+- Added ADR explaining Neo4j choice
+
 ## [0.3.0] - 2025-12-31
 
 ### Added
@@ -54,7 +77,8 @@ _Nothing yet._
 ### Added
 - Initial release
 
-[Unreleased]: https://github.com/omarkohl/ultimate-history/compare/v0.3.0...HEAD
+[Unreleased]: https://github.com/omarkohl/ultimate-history/compare/v0.4.0...HEAD
+[0.4.0]: https://github.com/omarkohl/ultimate-history/compare/v0.3.0...v0.4.0
 [0.3.0]: https://github.com/omarkohl/ultimate-history/compare/v0.2.1...v0.3.0
 [0.2.1]: https://github.com/omarkohl/ultimate-history/compare/v0.2.0...v0.2.1
 [0.2.0]: https://github.com/omarkohl/ultimate-history/compare/v0.1.0...v0.2.0

build/Ultimate_History/deck.json

@@ -135,7 +135,7 @@
             "weightSearch": ""
         }
     ],
-    "desc": "Learn about human history.\nSee <a href=\"https://github.com/omarkohl/ultimate-history\">github.com/omarkohl/ultimate-history</a> to submit bug reports and your own improvements! Everyone can collaborate on improving this deck.\n<b>Version: </b>0.4.0-dev\n",
+    "desc": "Learn about human history.\nSee <a href=\"https://github.com/omarkohl/ultimate-history\">github.com/omarkohl/ultimate-history</a> to submit bug reports and your own improvements! Everyone can collaborate on improving this deck.\n<b>Version: </b>0.4.0\n",
     "desiredRetention": null,
     "dyn": 0,
     "extendNew": 20,

docs/ankiweb-description.md

@@ -0,0 +1,37 @@
+# AnkiWeb Deck Description
+
+This file contains the description for the AnkiWeb deck listing. Copy this content when publishing updates to AnkiWeb.
+
+---
+
+Learn about human history.
+
+The underlying idea of this project is to view history as a **graph of events and people** who are connected. The Anki cards not only query you about individual events and people but also about the **relationships** between them.
+
+## What's New in 0.4.0
+
+This release adds **early 20th century content**, focusing on World War I and the Russian Revolution:
+- **WWI**: 8 major battles/events and 14 key leaders from all major powers
+- **Russian Revolution**: events from 1905 through the Civil War, including Lenin, Trotsky, and the Romanovs
+- **Ancient Rome**: Marcus Aurelius and the Antonine period (11 new entities)
+- **Classical music**: Mozart and Schubert
+- **Pre-WWI diplomacy**: the alliance system and crises that led to war
+
+See the [changelog](https://github.com/omarkohl/ultimate-history/blob/main/CHANGELOG.md) for full details.
+
+## Get Involved
+
+See [github.com/omarkohl/ultimate-history](https://github.com/omarkohl/ultimate-history) for more information and to submit bug reports and your own improvements! Everyone can collaborate on improving this deck.
+
+You can use CrowdAnki to update this deck with maximum flexibility. See the [instructions](https://github.com/omarkohl/ultimate-history/blob/main/docs/installation.md).
+
+Check the [learning recommendations](https://github.com/omarkohl/ultimate-history/blob/main/docs/learning.md) for this deck.
+
+<div class="grid" markdown>
+    <img src="https://github.com/omarkohl/ultimate-history/blob/main/docs/imgs/person-picture-to-name-01-question.png?raw=true" width="400" alt="Person card example - Question">
+    <img src="https://github.com/omarkohl/ultimate-history/blob/main/docs/imgs/person-picture-to-name-02-answer.png?raw=true" width="400" alt="Event card example - Answer">
+</div>
+
+[View all screenshots](https://github.com/omarkohl/ultimate-history/blob/main/docs/screenshots.md)
+
+**Version: 0.4.0** (see the [changelog](https://github.com/omarkohl/ultimate-history/blob/main/CHANGELOG.md) for all changes)

docs/development.md

@@ -37,7 +37,7 @@ uv run main.py list-relationships --search "Napoleon"   # Filter by search term
    uv run main.py bump-version
    ```
 
-2. Update [CHANGELOG.md](../CHANGELOG.md) with the release notes and commit the changes
+2. Update [CHANGELOG.md](../CHANGELOG.md) with the release notes and update [ankiweb-description.md](ankiweb-description.md) with the new version and a summary of changes, then commit
 
 3. Run `uv run main.py sync`
 
@@ -65,7 +65,7 @@ uv run main.py list-relationships --search "Napoleon"   # Filter by search term
     `Ultimate_History.apkg`. Copy the relevant changelog parts from
     [CHANGELOG.md](../CHANGELOG.md).
 
-11. Go to https://ankiweb.net/decks and share the deck. Update the version number in the description.
+11. Go to https://ankiweb.net/decks and share the deck. Copy the description from [ankiweb-description.md](ankiweb-description.md) (update it first with the latest version and changes).
 
 12. Bump the version to the next `-dev` by repeating steps 1-3.
 

src/headers/description.html

@@ -1,3 +1,3 @@
 Learn about human history.
 See <a href="https://github.com/omarkohl/ultimate-history">github.com/omarkohl/ultimate-history</a> to submit bug reports and your own improvements! Everyone can collaborate on improving this deck.
-<b>Version: </b>0.4.0-dev
+<b>Version: </b>0.4.0