diff --git a/CHANGELOG.md b/CHANGELOG.md
index c88cf221..805b659c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,7 @@
 
 * ENHANCEMENT: The app can now take advantage of native Promises (faster than Q)
 * ENHANCEMENT: Decompressors now loaded as fast binary WASM modules if the brower supports WebAssembly
+* EXPERIMENTAL: Intalled PWA can now be opened offline when double-clicking ZIM archive (depends on File Handling API) 
 * FIX: More displaced hatnotes corrected
 * FIX: Style injection code that would (rarely) cause an exception on some ZIM types
 
diff --git a/www/index.html b/www/index.html
index 3129ebee..080c4ab3 100644
--- a/www/index.html
+++ b/www/index.html
@@ -120,6 +120,7 @@
                         <ul style="padding-left: 15px;">
                             <li>The app can now take advantage of native Promises, speeding up intensive searches considerably</li>
                             <li>Decompressors now loaded as fast binary WASM modules if the brower supports WebAssembly</li>
+                            <li>Intalled PWA can now be opened offline when double-clicking ZIM archive (depends on File Handling API)</li>
                             <li>More displaced hatnotes are now corrected</li>
                             <li>Fixed style injection code that would (rarely) cause an exception on some ZIM types</li>
                         </ul>