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LobeHub v2.1.55 Fixes Topic Routing and Cold-Start Chat Regressions

LobeHub v2.1.55 Fixes Topic Routing and Cold-Start Chat Regressions

LobeHub v2.1.55 is a targeted hotfix release focused on one specific reliability issue: preserving newly created Topics when users send a first message before the destination chat route has fully loaded. The update improves chat continuity across cold-start entry points and removes regressions that could previously leave users in an empty conversation state.

What Changed

The main fix in v2.1.55 addresses topic preservation across cold chat-entry routes. In earlier behavior, a newly created Topic could disappear if a first message was sent before the target chat route had fully hydrated. This release ensures the Topic remains visible and properly linked during that transition.

The Page Agent empty-session regression was also fixed. Users sending the first message in an empty Page Agent panel will no longer see the newly created Topic cleared out and the panel reset back to an empty state. This resolves issue LOBE-8351 and makes the initial chat experience more dependable.

Another important change improves Home cold-route send behavior. Sending from the Home default Chat Input now correctly routes users into the newly created Inbox Topic even if the /agent/:aid route has never been opened before and no warm route cache exists.

LobeHub also aligned topic reset behavior across page-scoped Copilot flows. Page Copilot and File Copilot now follow the same provider-level logic, so stale Topics are cleared only when entering or switching the scoped Agent, improving consistency between related interfaces.

To reduce the risk of repeat regressions, the release adds focused automated coverage. That includes unit tests for Home default sends, parity coverage for route behavior, and an end-to-end scenario covering the no-cache Home send path.

Why It Matters

This release matters because it strengthens one of the most important interaction points in an AI product: the very first message a user sends. Failures during cold-start routing can make the application feel unreliable, especially when conversations appear to vanish or fail to attach to the correct Topic.

For teams deploying LobeHub in production, v2.1.55 improves session continuity, reduces confusion in agent-based chat flows, and makes navigation across scoped chat surfaces more predictable. The added automated test coverage also signals a stronger quality guardrail around routing and hydration-sensitive behavior in future releases.

Official Source: https://github.com/lobehub/lobehub/releases/tag/v2.1.55