---
title: "Release 5.3.17"
description: "Telegram double-tap fix, AI QA stats, react time, scenario import, knowledge sources in chat, and chat switching fix."
---

# Release 5.3.17

## What Changed

- **Telegram inline buttons.** Double handling of a single inline button press in Telegram has been removed — one action is not executed twice.
- **AI QA statistics.** Each successful AI QA assessment is now recorded — you can analyze volume and results of checks.
- **Chat reaction time.** Calculation of average chat reaction time has been unified and fixed — same logic in reports and real time.
- **Scenario and bot import.** Added support for importing scenarios and bots with a clear interface.
- **Quick chat switching.** Fixed a bug where dialog and client data from different chats could mix when switching quickly — only the selected dialog's data is shown.
- **Knowledge sources in chat.** Copilot suggestions and Fast Line Pro Agent replies in Operator Line can show a **CITATIONS** block — document name, segment preview, and a link to the knowledge base (for roles with **FastLine: View** permission).

## How It Changed

### Telegram and AI QA

**Before:** Double taps in Telegram could trigger the same action twice; AI QA stats could be incomplete.  
**Now:** Duplicate events are filtered; AI QA stats are recorded for each successful check.  
**Why it matters:** Predictable button behavior and full view of AI checks.

### Import and chat switching

**Before:** Scenario/bot import could be limited; when switching chats quickly, data from another dialog could appear.  
**Now:** Import is supported with a clear UI; switching chats shows only the selected dialog’s data.  
**Why it matters:** Safe sharing of configurations and no confusion between clients.

### Operator Line — AI sources in chat

**Before:** operators saw Copilot or agent text but could not inspect which knowledge base documents were used.  
**Now:** under AI messages you can expand **CITATIONS** — segment list, query similarity percentage, and **Link to Knowledge** to verify in Fast Line Pro.  
**Why it matters:** faster answer verification and less risk of sending outdated context to customers.

## Related documentation

- [View knowledge base sources in chat](/en/operatorline/how-to/view-knowledge-citations.md)
- [Knowledge base sources in chat (explanation)](/en/operatorline/explanation/knowledge-base-citations-in-chat.md)