# Dify 1.13.3 — v1.13.3

- Product: Dify (https://whatsnew.fyi/product/dify)
- Vendor: LangGenius
- Date: 2026-03-27
- Version: 1.13.3
- Original notes: https://github.com/langgenius/dify/releases/tag/1.13.3
- Permalink: https://whatsnew.fyi/product/dify/releases/1.13.3

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

---

- **added** — Add variable-reference support for model parameters in LLM, Question Classifier, and Variable Extractor nodes
- **fixed** — Fix StreamsBroadcastChannel replay and concurrency issues to keep frontend/backend event delivery stable
- **fixed** — Fix pasted nodes retaining Loop/Iteration metadata
- **fixed** — Prevent HumanInput nodes from being pasted into invalid containers
- **fixed** — Restore prompt message transformation logic
- **fixed** — Correct max_retries=0 handling for executor-driven HTTP Request execution
- **fixed** — Preserve citation metadata in web responses
- **fixed** — Fix crashes when dataset icon metadata is missing
- **fixed** — Correct hit-count query filtering
- **fixed** — Restore indexed document chunk previews

##### 🚀 What's New in v1.13.3?
Our latest patch release, v1.13.3, focuses on stability and correctness across workflow execution, streaming, and knowledge retrieval. Here's a quick look at the most important updates:

###### 🎬 New Features
- **Workflow Configuration**: Added variable-reference support for model parameters in LLM, Question Classifier, and Variable Extractor nodes by @scdeng in #33082.

###### 🛠️ Bug Fixes
- **Streaming Reliability**: Fixed `StreamsBroadcastChannel` replay and concurrency issues to keep frontend/backend event delivery stable by @QuantumGhost in #34030 and #34061.
- **Workflow Editor Behavior**: Fixed pasted nodes retaining Loop/Iteration metadata and prevented `HumanInput` nodes from being pasted into invalid containers by @majiayu000 and @hjlarry in #29983 and #34077.
- **Runtime Execution**: Restored prompt message transformation logic and corrected `max_retries=0` handling for executor-driven HTTP Request execution by @QuantumGhost, @fatelei, and @kurokobo in #33666, #33619, and #33688.
- **Knowledge Retrieval**: Preserved citation metadata in web responses, fixed crashes when dataset icon metadata is missing, corrected hit-count query filtering, and restored indexed document chunk previews by @Theysua, @copilot-swe-agent, and @fatelei in #33778, #33907, #33757, and #33942.

###### 🔧 Under the Hood
- **Patch Stability**: This release prioritizes targeted fixes for workflow runtime behavior, real-time streaming, and knowledge base usability for teams upgrading from v1.13.2.

---

##### Upgrade Guide

> [!IMPORTANT]
> The Sandbox image used by Dify v1.13.3 expects the following Python and Node.js paths.
> If you upgraded from an older Docker Compose deployment and already have `docker/volumes/sandbox/conf/config.yaml`, update it on the host machine:
> ```yaml
> python_path: /opt/python/bin/python3
> nodejs_path: /usr/local/bin/node
> ```
> 
> Do not edit the file inside the sandbox container. The directory `docker/volumes/sandbox/conf` is mounted into the container as `/conf`, so host changes persist after container restarts.

###### Docker Compose Deployments

1. Back up your customized docker-compose YAML file (optional)

   ```bash
   cd docker
   cp docker-compose.yaml docker-compose.yaml.$(date +%s).bak
   ```

2. Get the latest code from the main branch

   ```bash
   git checkout main
   git pull origin main
   ```

3. Stop the service. Please execute in the docker directory

   ```bash
   docker compose down
   ```

4. Back up data

   ```bash
   tar -cvf volumes-$(date +%s).tgz volumes
   ```

5. Upgrade services

   ```bash
   docker compose up -d
   ```

###### Source Code Deployments

1. Stop the API server, Worker, and Web frontend Server.

2. Get the latest code from the release branch:

   ```bash
   git checkout 1.13.3
   ```

3. Update Python dependencies:

   ```bash
   cd api
   uv sync
   ```

4. Then, let's run the migration script:

   ```bash
   uv run flask db upgrade
   ```

5. Finally, run the API server, Worker, and Web frontend Server again.

---

##### What's Changed
* refactor(web): number inputs to use Base UI NumberField by @lyzno1 in https://github.com/langgenius/dify/pull/33539
* feat(web): add base ui toast by @lyzno1 in https://github.com/langgenius/dify/pull/33569
* chore(i18n): sync translations with en-US by @github-actions[bot] in https://github.com/langgenius/dify/pull/33585
* chore(i18n): sync translations with en-US by @github-actions[bot] in https://github.com/langgenius/dify/pull/33586
* refactor(api):  Query API to select function_1 by @RenzoMXD in https://github.com/langgenius/dify/pull/33565
* refactor: replace sa.String with EnumText for mapped_columns by @tmimmanuel in https://github.com/langgenius/dify/pull/33547
* refactor(api): replace dict/Mapping with TypedDict in core/app by @statxc in https://github.com/langgenius/dify/pull/33601
* chore(

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