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Release Notes

A history of Agentlab-specific changes on top of Langflow, newest first. Internal build, CI and rebase-maintenance work is omitted.

v1.3.507 Aug 2026

How Agentlab versions work

Agentlab tracks its own version line, independent of Langflow. A minor release (e.g. 1.2.x → 1.3.x) marks a rebase onto a newer upstream Langflow release, bringing in all of that version's improvements. Patch releases add Agentlab features and fixes on top of the current base.

Each group below notes the underlying Langflow version. For upstream changes, see the Langflow release notes.

1.3.x

1.3.5

  • New Agentlab version — the account menu now shows the Agentlab release version alongside the underlying Langflow version, so you can tell exactly which build you're running.

1.3.4

  • Improved Structured Output — the Format Instructions field is now available in the component's settings, so you can customize how the model formats its extracted output. It was previously hidden from view.
  • Fixed Embedding Model — a newly added Embedding Model component works on the first run. Previously it failed with a "no embedding class" error until you re-selected the model from the dropdown.
  • New Embedding overrides — optional Model Name and Provider inputs let a global variable choose the embedding model at runtime.
  • Fixed API Keys — deleting an API key works again; it previously returned an error.

1.3.3

  • Fixed Tool Calls — custom tool titles and display modes (introduced in 1.2.7) are saved again. After the 1.10.3 rebase they were reset when the Actions sidebar was reopened; the values now persist. Tool Calls →

1.3.2

  • Improved Observability — trace span labels and types are normalized to a consistent lowercase form, so spans group and filter reliably across runs.

1.3.0

  • Changed Rebased onto Langflow 1.10.3 — the full set of upstream improvements comes with it.
  • Improved KARLI embedding catalog — refreshed, with the docs updated to match.
  • Changed Context Input — adapted to Langflow's new component-constraint system; behavior is unchanged for flow designers.

1.2.x

1.2.7

  • New Tool Calls display control — each tool an agent can call has two new knobs: a human-readable title shown in chat and a display mode (hidden, summary line, or expandable line). Set them per tool in the Actions sidebar, or as defaults on a component. Tool Calls →

1.2.6

  • New KARLI passage embeddings — the e5 and q15 models were added to the provider.
  • New Publishing flows to Karli — a new documentation section walks through it.

1.2.5

  • Improved Chat Input — the component was extended.

1.2.4

  • New dense-experimental-latest — added to the KARLI provider.

1.2.3

  • New KARLI_DATA_EXTRACTION_MOE_LATEST — a new data-extraction model.
  • Changed Context Input — flows are limited to a single Context Input; the component disables adding more once one is present, with clearer guidance in the docs.
  • Changed Account menu — the GitHub, Twitter and Discord links were removed.

1.2.2

  • Fixed KARLI model provider — a configuration issue was resolved.

1.2.0

  • Changed Rebased onto Langflow 1.9.0
  • Improved Documentation site redesign — new layout, navigation and styling, aligned with Karli Studio.
  • New Split KARLI URLs — the provider supports separate URLs for the LiteLLM gateway and the KARLI API.
  • New API-docs links — the KARLI and TokenEurope providers link into this documentation.

1.1.x

1.1.12

  • New Memory Cell — a new component that reads, writes or deletes a persistent key-value pair scoped to the session, user or agent. Memory Cell →

1.1.11

  • New SHARED_SERVICES_API_KEY — supported by the KARLI provider, alongside improved ReadFile handling.
  • Fixed KARLI embeddings — the batch-size limit no longer breaks requests.

1.1.10

  • New Build events — components emit build-start and build-end events for observability. (Superseded in 1.2.3.)

1.1.9

  • Fixed KARLI embeddings — a bug caused by unnecessary deserialization was resolved.

1.1.8

  • New Agentlab documentation site — launched, including German translations and screenshots.
  • New TokenEurope — added as a model provider.
  • Improved KARLI provider — the LLM lineup was extended.

1.1.7

  • New Identity Input — a new component returning identity information for the user running the flow, decoded from the session token. Identity Input →
  • New Data Extraction — KARLI data-extraction models and the /extract endpoint, with per-model file-type support (including audio) and JWT-based context for shared services. Data Extraction →

1.1.6

  • Changed Reset-password panel — removed.

1.1.5

  • Changed Rebased onto Langflow 1.8.2
  • New Context Input — a configurable source selector for agents that perform context-specific lookups. Context Input →

1.1.3

  • New embed-15 — a new embedding model.
  • Fixed Embedding model selection — picking a model works reliably again.

1.1.0

  • Changed Rebased onto Langflow 1.8.1
  • New Chat Input chips — chip-based input with reliable routing. Chat Input (Chips) →
  • New File uploads — the File component accepts user uploads, and files can be sent inline through the API and returned from Chat Input. File Component →
  • New Provider and bundle gating — available model providers and sidebar bundles can be restricted via the MODEL_PROVIDERS and LANGFLOW_ENABLED_BUNDLES environment variables.
  • Improved KARLI as an agent provider — with the KARLI icon shown on model components.
  • Changed Model components — per-component API-key and base-URL inputs are gone; these now come from the central provider settings.
  • Fixed Input validation — errors return a clean 422 response.

1.0.x

1.0.0

  • Changed Rebased onto Langflow 1.7.1
  • New Fivesquare Docker image — a dedicated image, together with KARLI embeddings configuration.

0.x

0.1.0–0.3.0

  • Changed KARLI in the sidebar — added to the sidebar categories and component imports.

0.0.1

  • New First Agentlab release
  • New KARLI as a model provider — with configurable inputs, API integration and a dedicated icon.
  • New KARLI Embeddings — including sparse embeddings; the Qdrant component gained an optional vector name and KARLI defaults.
  • New Publish to Karli — a modal for publishing flows, with user and admin selection.
  • New Agent flow deletion — plus protected and pre-initialized API keys.
  • Improved Icon picker — an expanded Material Symbols set and better scrolling behavior.

Something missing or wrong on this page? Open an issue — or see the Langflow release notes for upstream changes.