# 2026.20 Infrastructure Changes

## Changes on Application environment

| **Change** | **Environment Variable Name** | **Application Default Value**<br>**(if env variable unset)** | **Example** | **Required** | **Applications** | **Short Description** |
| --- | --- | --- | --- | --- | --- | --- |
| Added | `WORD_READ_MODE` | `DOC_INTELLIGENCE_DEFAULT` | `DOC_INTELLIGENCE_DEFAULT` | `false` | - `backend-service-ingestion` | `WORD_READ_MODE` controls which processing path is used for Word (`.docx`) ingestion - `DOC_INTELLIGENCE_DEFAULT` uses the Doc Intelligence/PDF pipeline when available, while other modes can force Mammoth or PDF-based ingestion; if Doc Intelligence isn’t configured, it automatically falls back to Mammoth. |
| Added | `FEATURE_FLAG_DEPLOYMENT_VERSION_CHECK` | `false` | `true` | false | `web-app-admin`, `web-app-theme`, `web-app-knowledge-upload` | When enabled, will start the version pooling behaviour on chat to detect version changes and show the modal if there is a mismatch.<br>(Previously added to web-app-chat only) |
| Added | `FEATURE_FLAG_ANALYTICS_TIMEZONE_UN_18143` | `false` | `true` | false | `web-app-chat` | Turns on analytics timezone parameter interface on the frontend |
| Added | `FEATURE_FLAG_ENABLE_NARRATIVE_SUGGESTED_PROMPTS_UN_19396` | `false` | `true` | false | `web-app-chat` | When enabled along with `FEATURE_FLAG_ENABLE_NEW_ANSWERS_UI_UN_14411`, shows an assistant's briefing narrative and clickable suggested-prompt cards on a new chat page. |
| Added | `FEATURE_FLAG_SIDE_MENU_NAVIGATION` | `false` | `true` | false | `web-app-chat`, `web-app-admin`, `web-app-theme`, `web-app-knowledge-upload` | When enabled, shows the new and improved navigation bar |
| Added | `FEATURE_FLAG_ENABLE_DYNAMIC_SCOPE_RULE_UN_17614` | `false` | `true` | false | `web-app-admin` | When enabled, [dynamic filters](https://docs.unique.ai/administrators/space-management/tools/internal-search/dynamic-filter-rules-in-internal-search) can be used in UniqueAI |
| Added | `FEATURE_FLAG_ENABLE_SKILLS_UN_20042` | `false` | `true` | false | `web-app-chat`, `web-app-admin`,`backend-service-ingestion` | When enabled, allows user to configure and use skills.