doc: document options panel, entry points, and the ChatGPT prefill limitation

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

CHANGELOG.md

@@ -2,6 +2,25 @@
 
 All notable changes to this project will be documented in this file. See [commit-and-tag-version](https://github.com/absolute-version/commit-and-tag-version).
 
+## [1.1.0] (2026-07-30)
+
+Adds an options panel and two new ways to reach ChatGPT.
+
+ * Options panel in `about:addons` with five settings: model (experimental),
+   temporary chat, web-search hint, where results open, and a prompt template.
+ * Right-click selected text and choose "Ask ChatGPT" to open ChatGPT with that
+   text filled in.
+ * Keyboard shortcut `Alt+Shift+G` does the same for the current selection, and
+   opens an empty chat when nothing is selected. Rebindable via Manage Extension
+   Shortcuts.
+ * Documented that ChatGPT no longer submits prompts passed in a URL, so a
+   second Enter is needed. This is an upstream change to chatgpt.com.
+ * `gpt <query>` address-bar search is unchanged.
+ * The options panel, right-click item, and keyboard shortcut require Firefox
+   112 or newer. Older versions keep the `gpt <query>` search unchanged.
+ * Permissions added: storage, menus, activeTab. None of them adds a line to
+   Firefox's install prompt.
+
 ## [1.0.0]) (2024-06-09)
 
 First release of software.