## Documentation Index Fetch the complete documentation index at: [/llms.txt](https://docs.cognigy.com/llms.txt) Use this file to discover all available pages before exploring further. With this release, transformers start using the `axios` library for handling HTTP requests internally instead of `request-promise`. For more details, read [Transformers Overview](https://docs.cognigy.com/ai/for-developers/transformers/overview). The following models have been removed from Cognigy.AI because OpenAI and Microsoft Azure OpenAI no longer support them: `gpt-3.5-turbo`, `gpt-3.5-turbo-instruct`, and `gpt-4`. If you use these models in your Flows, replace them with available models from the [Model Support by Feature](https://docs.cognigy.com/ai/agents/develop/gen-ai-and-llms/model-support-by-feature) list to ensure your AI Agents remain stable. Help us improve our product documentation on `docs.cognigy.com` by sharing your thoughts in a [quick survey](https://forms.office.com/e/xnqneVasp2). Your feedback shapes the future of our content! ## 2025.25.1 ### Cognigy Live Agent **Released** December 16, 2025 #### Bug Fixes - Fixed the issue with the Cognigy.AI OData endpoint where account-level filtering was not correctly applied to the `ReportingEvent` collection. ### Cognigy Voice Gateway **Released** December 10, 2025 #### Bug Fixes - Fixed the issue where Microsoft Azure’s speech services functions didn’t work properly for on-premises installations by rolling back the FreeSWITCH image to `cognigy.azurecr.io/vg-freeswitch-mrf:0.9.3`. ## 2025.25.0 ### Cognigy.AI **Released** December 9, 2025 #### Features ##### Data Redaction Introduced [data redaction](https://docs.cognigy.com/ai/platform-features/data-redaction) to automatically redact any information, including Personally Identifiable Information (PII), from conversation logs and analytics. This feature prevents exposure or misuse of predefined data while maintaining log readability and analytics accuracy. ##### New Tools for AI Agents Introduced the [Send Email and Handover to AI Agent tools](https://docs.cognigy.com/ai/agents/develop/manage-ai-agents), enabling AI Agents to send emails directly and transfer conversations to other AI Agents within workflows. ##### New NiCE CXone AAH Endpoint Provided full access to the [NiCE CXone AAH Endpoint](https://docs.cognigy.com/agent-copilot/deploy/nice-aah) for all users, enabling human agents to integrate Agent Copilot into their NiCE contact center platform. #### Improvements - Enabled [Simulator availability](https://docs.cognigy.com/ai/agents/test/simulator/overview) across all SaaS installations. - Removed the beta flag for the [LLM Fallback](https://docs.cognigy.com/ai/agents/develop/gen-ai-and-llms/fallback) feature. - Added the Tenant ID field and moved the Billing Time Zone to the Change Organization Information section in the [Management UI](https://docs.cognigy.com/ai/administer/access/management-ui#manage-organizations). - Removed the `gpt-3.5-turbo`, `gpt-3.5-turbo-instruct`, and `gpt-4` models. - Replaced the `request-promise` library with Axios for HTTP requests sent from the transformers. - Added support for custom hostnames when deploying the platform behind a CDN or firewall. - Updated logic for generating session IDs for Endpoints. Now, each Endpoint and third‑party account combination, for example, a WhatsApp Endpoint and a WhatsApp account, gets a unique session ID with no duplicates across Endpoints and Projects. #### Bug Fixes - Fixed the issue where deprecated models were displayed without the Deprecated icon. - Fixed the issue where organization deletion didn’t remove the NFS directories. - Fixed the issue where additional attributes in Genesys Open Messaging handovers were corrupted due to invalid data types. - Fixed the issue where the Storm handover provider wasn’t working due to request verification issues. - Fixed the issue where the LLM Prompt tool Nodes couldn’t be added. - Fixed the issue where custom models and request options for Google Gemini weren’t forwarded to the provider. - Fixed the issue where Azure OpenAI LLMs using API key connections with custom URLs failed. - Fixed the issue where the custom attributes in Genesys prevented handovers from being created when they contained nested JSON attributes. ### Cognigy Voice Gateway **Released** December 9, 2025 #### Improvements - Improved connection handling when multiple WebSocket connection attempts are made, reducing dropped and failed connections. - Improved handling of DTMF signals and Barge-in scenarios, making voice interactions more responsive and accurate. #### Bug Fixes - Fixed the issue with Silence Overlay and Atmosphere sounds, improving call reliability and user experience. - Fixed the HTTP session failures, such as those occurring when starting a SIPREC session, ensuring reliable call recording and signaling. ### Cognigy Webchat **Released** December 9, 2025 #### Improvements - Updated Demo Webchat to 3.34.0. ### Cognigy Live Agent **Released** December 9, 2025 #### Features ##### Escalation to Supervisors Introduced the [escalation to supervisors](https://docs.cognigy.com/live-agent/settings/inboxes#escalate-conversations-to-supervisors) feature. This feature allows human agents to escalate conversations from the Live Agent interface to a designated supervisor. Supervisors can then take over the conversation, ensuring faster resolution of complex issues and better support management. ##### Live Agent OData Endpoint v2.0 Introduced [Live Agent OData Endpoint version 2.0](https://docs.cognigy.com/live-agent/tools/odata-endpoint), featuring enhanced functionality and a new teams collection for managing team data. #### Bug Fixes - Fixed the issue where memories in Contact Profiles weren’t in a human-readable format. - Fixed the issue causing evaluation errors in Excel OData Power Query Editor. ### Cognigy Insights **Released** December 9, 2025 #### Improvements - Added Markdown rendering support to the Transcript Explorer. - Updated the session’s Locale information when switching Locales in the Flow. #### Bug Fixes - Fixed the issue where a red error message appeared in the Transcript Explorer when quick reply texts were empty. - Fixed the issue where multiselect filters in the Transcript Explorer didn’t work as expected. ### Infrastructure #### Version Compatibility Matrix The version compatibility matrix was updated for the following Cognigy products: - [Cognigy.AI, Insights, and Agent Copilot](https://docs.cognigy.com/ai/administer/installation/version-compatibility-matrix) - [Cognigy Live Agent](https://docs.cognigy.com/live-agent/installation/deployment/version-compatibility-matrix) - [Cognigy Voice Gateway](https://docs.cognigy.com/voice-gateway/installation/version-compatibility-matrix) Last modified on March 16, 2026.