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Release 5.0 2025.10.07.1

· 3 min read

🎉 New Features​

Conversation Variables​

Introducing Conversation Context and Conversation Variables. Agents can now read, store, and update conversation-level variables during a session. These variables can be injected into prompts, allowing agents to adapt their behavior and outputs as the conversation progresses—enabling more personalized, context-aware interactions.

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Define custom variables for the conversation

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Access variable data and pass it to the agent in your prompt

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Add conditional logic by using the content of the variable

For a practical example of how Conversation Context can be used in a real-world scenario, see our blog post on Identity Verification in Conversational Agents - Context & Flow Control. This article demonstrates implementing an identity verification flow in a customer support agent for online order management, showcasing how conversation variables control multi-step validation and dynamic prompting.

Model End of Life Notifications​

Model Selection​

Easily spot models that are soon to be deprecated directly in the Agent Designer’s model selector, making it simple to plan replacements and avoid disruption.

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Email Notifications​

A new email notification service alerts you when an LLM model is approaching end-of-life. Notifications list the affected models, which agents use them, and recommended alternative models, so you can plan migrations and avoid service disruption. Notifications will be sent 30, 7, and 1 day before the End of Life.

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🛠️ Enhancements​

Custom Log Retention​

Set how many days advanced instance-level logs are retained per agent in Serenity* Star, giving teams easy control over data-retention policies. Depending on your subscription plan, you can increase the default retention period to better meet your compliance, auditing, or troubleshooting needs, ensuring flexibility and alignment with your organization’s requirements.

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Improved API Key Scopes​

Create API keys from Dev Tools and assign explicit scopes to each key. Permissions in the Agent Design Studio are now easier to manage, giving you finer access control for integrations and teams.

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Duplicate Workflows​

Duplicate existing workflows and use Serena to quickly modify details. This speeds up iteration, testing, and rollouts for similar workflows.

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🐞 Bug Fixes & Minor Improvements​

  • Improved loading performance of the billing view.
  • Enhanced retry strategies for Knowledge Reprocessing.
  • Model selector in agents now shows the correct model types.
  • UI improvements, better empty states, and typo fixes.
  • Improved usability in the Connection Selector for plugins.
  • Fixed data overload in the Duration column in the Agent Instance Grid.
  • Improved validation errors in Agent Design Studio for clearer feedback.
  • Increased agent size to support more complex agent definitions.
  • Improved filtering of allowed models in the model catalog.
  • Fixed markdown styles in the Chat Widget.
  • Fixed agent duplication bug when changing agent type.
  • Improved guardrails by analyzing full chat history in Proxy and Chat agents.