chore: Changelog updates (open-webui#21497)

* changelog: add model edit shortcut entry

* changelog: add Chinese translation updates for 0.8.3

* changelog: fix USER_EMAIL template variable

* changelog: add fix for missing function error handling in models endpoint

* changelog: startup error handling, translation updates

* changelog: PostgreSQL group query fix

* changelog: images, attachments, vision

* changelog: model edit, image handling, user_email, groups, startup

* changelog: image-edit, model-shortcut, general-improvements

* changelog: image edit API background support

* changelog: image API support, function error handling

Author: Classic298

CHANGELOG.md

@@ -10,17 +10,19 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Added
 
 - ✏️ **Model edit shortcut.** Users can now edit models directly from the model selector dropdown menu, making it faster to modify model settings without navigating to separate admin or workspace pages. [Commit](https://github.com/open-webui/open-webui/commit/519ff40cb69cdc1d215cee369e9db70ff7438153)
+- 🎨 **Image edit API background support.** The image edit API now supports the background parameter for OpenAI's gpt-image-1 model, enabling background transparency control ("transparent", "opaque", "auto") when the feature is exposed in the UI. [#21459](https://github.com/open-webui/open-webui/pull/21459)
+- 🔄 **General improvements.** Various improvements were implemented across the application to enhance performance, stability, and security.
 - 🌐 Translations for Portuguese (Brazil), Simplified Chinese, and Traditional Chinese were enhanced and expanded.
 
 ### Fixed
 
 - 📧 **USER_EMAIL variable fix.** The {{USER_EMAIL}} template variable now correctly returns the user's email address instead of "Unknown" in prompts. [#21479](https://github.com/open-webui/open-webui/pull/21479), [#21465](https://github.com/open-webui/open-webui/issues/21465)
+- 🖼️ **Image and file attachment handling fixes.** Uploaded images are now correctly sent to vision-enabled models, and file attachments now work even when no user text is entered alongside a system prompt. This fixes two issues where the backend was not properly processing file attachments: images weren't converted to the expected format for API requests, and file context was dropped when the user sent only a file without accompanying text. [Commit](https://github.com/open-webui/open-webui/commit/f1053d94c7ef7b8b78682dd73586b65a84d202a1), [#21477](https://github.com/open-webui/open-webui/issues/21477), [#21457](https://github.com/open-webui/open-webui/issues/21457)
 - 🛡️ **Missing function error handling.** Models that reference deleted functions no longer cause the entire /api/models endpoint to crash; instead, the missing functions are skipped and logged, allowing the rest of the models to load successfully. [#21476](https://github.com/open-webui/open-webui/pull/21476), [#21464](https://github.com/open-webui/open-webui/issues/21464)
 - 🚀 **Startup model pre-fetch error handling.** If model pre-fetching fails during app startup, the application now logs a warning and continues instead of crashing entirely. [Commit](https://github.com/open-webui/open-webui/commit/337109e99ce390f55a9085d0a301853637923779)
+- ⚙️ **Function module loading error handling.** Function modules that fail to load during startup or model processing are now caught and logged, preventing crashes when models reference functions with loading errors. [Commit](https://github.com/open-webui/open-webui/commit/15b893e651de71b033408e1b713e0b51f6829ab8)
 - 🗄️ **PostgreSQL group query fix.** The `/api/v1/groups/` endpoint no longer fails with a GROUP BY error when using PostgreSQL; member counts are now calculated using correlated subqueries for better database compatibility. [#21458](https://github.com/open-webui/open-webui/pull/21458), [#21467](https://github.com/open-webui/open-webui/issues/21467)
 
-### Changed
-
 ## [0.8.2] - 2026-02-16
 
 ### Added