# 2025.28 Infrastructure Changes

1 min read

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# Changes on Application environment [Copy link to this section](https://docs.unique.ai/it-operators/installing-and-upgrading-unique/release-notes-and-calendar/release-notes-2025/release-2025-28/2025-28-infrastructure-changes#changes-on-application-environment "Copy link to this section")

| **Change** | **Name** | **Default** | **Example** | **Required** | **Applications** | **Short Description** |
|------------|----------|-------------|-------------|--------------|------------------|-----------------------|
| Removed     | `FEATURE_FLAG_ENABLE_CHAT_HISTORY_UN_5803` |  |  |  | `next-chat` | Chat history page<br> |
| Removed     | `FEATURE_FLAG_IN_DOCUMENT_TRANSLATOR_UN_8405` |  |  |  | `next-chat` |  |
| Removed     | `FEATURE_FLAG_ENABLE_LATEX_UN_8603` |  |  |  | `next-chat` | Enables latex formula support in the UI<br>[Rendering LaTeX formulas in Chat Messages](https://docs.unique.ai/developers/software-development-kit-sdk/advanced-message-formatting/rendering-latex-formulas-in-chat-messages) |
| Removed     | `FEATURE_FLAG_ENABLE_NOTIFICATION_BANNER_UN_9411` |  |  |  | `next-admin`, `next-chat`, `next-knowledge-upload`, `next-theme` | Enables notification banner feature for everyone<br>[Notification Banner UI](https://docs.unique.ai/administrators/platform-configuration/admin-interfaces/notification-banner-ui) |