giswqs · Oct 25, 2026 · Oct 25, 2026 · Oct 25, 2026
diff --git a/GEOLIBRE_PARITY.md b/GEOLIBRE_PARITY.md
@@ -278,7 +278,7 @@ _GeoLibre: docs/user-guide/ai-assistant.md, docs/features.md › AI, Python, and
 _GeoLibre: docs/features.md › Platforms and interface; docs/i18n.md_
 
 - [ ] **More languages and right-to-left layout**: GeoLibre has 20 languages including Arabic,
-  Persian and Hebrew. Partial: 18 languages; Persian text is drawn right to left, while the panes
+  Persian and Hebrew. Partial: 19 languages; Persian text is drawn right to left, while the panes
   keep their left-to-right layout.
 - [ ] **Translated geoprocessing tool names**. Missing (possibly deliberate).
 - [ ] **Keyboard-shortcut cheat sheet**. Partial: Command Search; rebindable shortcuts are on the

diff --git a/README.md b/README.md
@@ -13,7 +13,7 @@
 <p align="center">
   <img alt="Written in Rust" src="https://img.shields.io/badge/written%20in-Rust-b84a2c?style=flat-square&logo=rust&logoColor=white">
   <img alt="License: Apache-2.0" src="https://img.shields.io/badge/license-Apache--2.0-2563eb?style=flat-square">
-  <img alt="18 languages" src="https://img.shields.io/badge/languages-18-0e9384?style=flat-square">
+  <img alt="19 languages" src="https://img.shields.io/badge/languages-19-0e9384?style=flat-square">
   <a href="https://plugins.rustgis.app"><img alt="Plugins" src="https://img.shields.io/badge/plugins-registry-7c3aed?style=flat-square"></a>
   <a href="https://pypi.org/project/rustgis/"><img alt="PyPI" src="https://img.shields.io/pypi/v/rustgis?style=flat-square&logo=python&logoColor=white&label=pypi"></a>
   <a href="https://colab.research.google.com/github/opengeos/RustGIS/blob/main/apps/rustgis-python/examples/getting-started.ipynb"><img alt="Open in Colab" src="https://colab.research.google.com/assets/colab-badge.svg"></a>
@@ -105,7 +105,7 @@ Every screenshot is RustGIS itself, rendered offscreen by `cargo run -p rustgis-
 | **Sharing** | PNG export at any DPI; PDF; web map pages, OGC API Features collections, MapLibre styles, glTF scenes, locators; project, map and mobile map packages; offline areas with sync |
 | **AI Assistant** | Ask about your data or tell the map what to do in plain language, with Anthropic, OpenAI (a key, or your ChatGPT plan by signing in), Gemini, OpenRouter, Ollama or any OpenAI-compatible model; also `rustgis-cli ask`, and an [MCP server](docs/mcp.md) (`rustgis-cli mcp`) for Claude Code, Cursor, VS Code and other agents |
 | **Plugins** | Sandboxed WebAssembly [plugins](docs/plugins.md) add commands, tools and ribbon tabs; install them from [plugins.rustgis.app](https://plugins.rustgis.app) on the desktop, command line and web |
-| **Interface** | Layers, Browser and Data Sources panes as tabs, command search (Ctrl+K), keyboard shortcuts, dark mode, a customizable ribbon and Quick Access Toolbar, linked side-by-side maps, 18 languages |
+| **Interface** | Layers, Browser and Data Sources panes as tabs, command search (Ctrl+K), keyboard shortcuts, dark mode, a customizable ribbon and Quick Access Toolbar, linked side-by-side maps, 19 languages |
 
 The [user guide](https://rustgis.app/user-guide/) covers each area in detail,
 [Comparison](https://rustgis.app/comparison/) sets RustGIS beside GeoLibre, QGIS and ArcGIS, and

diff --git a/crates/ui-egui/src/i18n/mod.rs b/crates/ui-egui/src/i18n/mod.rs
@@ -83,7 +83,7 @@ macro_rules! lang {
 }
 
 /// The registry. English first: it is the source language and the fallback.
-pub static LANGUAGES: [LangInfo; 18] = [
+pub static LANGUAGES: [LangInfo; 19] = [
     LangInfo {
         code: "en",
         name: "English",
@@ -98,6 +98,7 @@ pub static LANGUAGES: [LangInfo; 18] = [
     lang!("fr", "Français", "French", Script::Alphabetic, "fr.tsv"),
     lang!("it", "Italiano", "Italian", Script::Alphabetic, "it.tsv"),
     lang!("nl", "Nederlands", "Dutch", Script::Alphabetic, "nl.tsv"),
+    lang!("pl", "Polski", "Polish", Script::Alphabetic, "pl.tsv"),
     lang!("pt", "Português", "Portuguese", Script::Alphabetic, "pt.tsv"),
     lang!("ru", "Русский", "Russian", Script::Alphabetic, "ru.tsv"),
     lang!("tr", "Türkçe", "Turkish", Script::Alphabetic, "tr.tsv"),

diff --git a/crates/ui-egui/src/i18n/pl.tsv b/crates/ui-egui/src/i18n/pl.tsv
diff --git a/crates/ui-egui/src/i18n/tests.rs b/crates/ui-egui/src/i18n/tests.rs
@@ -31,6 +31,7 @@ fn lookup_fallback_and_tags() {
     assert_eq!(lang_from_tag("de_DE.UTF-8").map(Lang::code), Some("de"));
     assert_eq!(lang_from_tag("pt-BR").map(Lang::code), Some("pt"));
     assert_eq!(lang_from_tag("bn-BD").map(Lang::code), Some("bn"));
+    assert_eq!(lang_from_tag("pl_PL.UTF-8").map(Lang::code), Some("pl"));
     assert_eq!(lang_from_tag("zh-Hans-CN").map(Lang::code), Some("zh"));
     assert_eq!(lang_from_tag("zh_CN.UTF-8").map(Lang::code), Some("zh"));
     assert_eq!(lang_from_tag("zh-TW"), None);
@@ -51,6 +52,16 @@ fn bengali_registration_and_fallback() {
     assert_eq!(tr(bn, "A string not in the Bengali catalog"), "A string not in the Bengali catalog");
 }
 
+#[test]
+fn polish_registration_and_fallback() {
+    let pl = Lang::from_code("pl").unwrap_or(Lang::EN);
+    assert_eq!(pl.name(), "Polski");
+    assert_eq!(pl.english(), "Polish");
+    assert_eq!(pl.script(), Script::Alphabetic);
+    assert_eq!(tr(pl, "Open"), "Otwórz");
+    assert_eq!(tr(pl, "A string not in the Polish catalog"), "A string not in the Polish catalog");
+}
+
 #[test]
 fn plugin_strings_use_the_plugins_translations() {
     use rustgis_engine::plugins;

diff --git a/docs/i18n.md b/docs/i18n.md
@@ -1,6 +1,6 @@
 # Languages
 
-RustGIS's interface is available in 18 languages:
+RustGIS's interface is available in 19 languages:
 
 | Language | Code | | Language | Code |
 | --- | --- | --- | --- | --- |
@@ -10,9 +10,10 @@ RustGIS's interface is available in 18 languages:
 | Français (French) | `fr` | | Bahasa Indonesia (Indonesian) | `id` |
 | Italiano (Italian) | `it` | | Tiếng Việt (Vietnamese) | `vi` |
 | Nederlands (Dutch) | `nl` | | 简体中文 (Chinese, Simplified) | `zh` |
-| Português (Portuguese) | `pt` | | 日本語 (Japanese) | `ja` |
-| ქართული (Georgian) | `ka` | | 한국어 (Korean) | `ko` |
-| فارسی (Persian) | `fa` | | বাংলা (Bengali) | `bn` |
+| Polski (Polish) | `pl` | | 日本語 (Japanese) | `ja` |
+| Português (Portuguese) | `pt` | | 한국어 (Korean) | `ko` |
+| ქართული (Georgian) | `ka` | | বাংলা (Bengali) | `bn` |
+| فارسی (Persian) | `fa` | | | |
 
 ## Choosing a language
 

diff --git a/docs/sponsor.md b/docs/sponsor.md
@@ -54,7 +54,7 @@ Sponsorship is not the only currency, and none of these cost anything:
   worth a great deal.
 - **Contribute code or plugins**: see [Contributing](contributing.md) and
   [Plugins](plugins.md#writing-a-plugin).
-- **Translate the interface**: RustGIS ships in 18 languages; see [Languages](i18n.md) to add or
+- **Translate the interface**: RustGIS ships in 19 languages; see [Languages](i18n.md) to add or
   improve one.
 
 ## Thank you

diff --git a/docs/user-guide/workspace.md b/docs/user-guide/workspace.md
@@ -201,7 +201,7 @@ duplication and nudging have their own [layout shortcuts](layouts.md#layouts).
 - **Plugins**: **Plugins › Plugin Manager** installs, updates and removes [plugins](../plugins.md)
   from the registry at [plugins.rustgis.app](https://plugins.rustgis.app) or from a file.
 - **Language**: **Settings › Language** switches the interface among
-  [18 languages](../i18n.md) and chooses the [worldview](maps.md#worldview) of the built-in
+  [19 languages](../i18n.md) and chooses the [worldview](maps.md#worldview) of the built-in
   borders.
 - **Start-up**: **Settings › Start-up** sets what RustGIS opens with: **Start With** the World Atlas
   sample or a blank map, or, in the desktop app, **Last Project** (the `.rgis` project last opened