1.4.0

🌟 What's New in v1.4.0? 🌟

🎂 Dify turns 2! New look, new brand, same mission.

Imagine if every idea could become an AI agent. With Dify, ‘if’ you can ask it, you can build it.

Check out the new Dify.AI and start building your if today.

🚀 New Features & Enhancements

🌙 Dark Mode

We’ve rolled out a theme switcher that allows you to easily toggle between light and dark modes, perfect for those late-night coding sessions. Click your avatar to experience it! This feature helps reduce eye strain and allows you to customize your user interface to match your preference. Thanks to @JzoNgKVO in PR #18093 for making this possible.

🖼️ Multi-Modal LLM Output

Our platform now supports multimodal outputs, allowing LLMs to handle both text and images within the LLMNode. This feature enhances the richness of data interaction and boosts your model's capabilities, courtesy of @QuantumGhost's efforts in PR #17372. You can now try these new features using the Gemini 2.0 Flash Exp model! This integration ensures that your AI can process and respond with both text and visual data seamlessly.

✏️ Editable Questions

We’ve added greater control over your questions, allowing them to be edited before they go live. This update ensures that you can tweak questions for clarity and relevance, as implemented by @HyaCiovo in PR #19117.

🔧 Bug Fixes and Improvements

• Enhanced Redis Management: Support Redis client-side caching for optimized data handling (though it’s disabled out-of-the-box), improving overall system performance. Credits to @bowenliang123 in PRs #19493 and #19524.

• Robust Workflow Management: Addressed numerous inconsistencies and bugs in workflows, ensuring smoother, more reliable operations across the board. Our workflows can now handle node failures more gracefully, thanks to contributions from @Kevin9703 in PR #18994.

These features and improvements reflect the feedback from our amazing community and aim to elevate both usability and functionality. We hope these updates significantly enhance your user experience!

Big thanks to all contributors for steering this version forward. Happy experimenting! 🙌

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Upgrade Guide

Docker Compose Deployments

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

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

2. Get the latest code from the main branch

   git checkout main
   git pull origin main
   

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

   docker compose down
   

4. Back up data

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

5. Upgrade services

   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:

   git checkout 1.4.0
   

3. Update Python dependencies:

   cd api
   uv sync
   

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

   uv run flask db upgrade
   

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

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What's Changed

• add MAX_TASK_PRE_CHILD for celery by @JohnJyong in https://github.com/langgenius/dify/pull/18985
• remove unstructured api key check by @JohnJyong in https://github.com/langgenius/dify/pull/18989
• refactor: switch to dynamic versioning in package configuration by @laipz8200 in https://github.com/langgenius/dify/pull/19019
• feat: clean up message_files table first before proceeding to find orphaned files by @kurokobo in https://github.com/langgenius/dify/pull/19035
• fixes: fix entrypoint script with missing environment variables by @fdb02983rhy in https://github.com/langgenius/dify/pull/19039
• fix: fix embedded chatbot styles on a relatively wide screen by @ModyQyW in https://github.com/langgenius/dify/pull/19030
• chore: Improve FILES_URL Configuration Comments by @fdb02983rhy in https://github.com/langgenius/dify/pull/19040
• test(graph-engine-test): modify the assert condition by @Nov1c444 in https://github.com/langgenius/dify/pull/19041
• fix(workflow_cycle_manage): failed nodes were not updated in workflow_node_executions by @Kevin9703 in https://github.com/langgenius/dify/pull/18994
• chore: improve diagram picture of docker compose by @hjlarry in https://github.com/langgenius/dify/pull/19054
• feat(api): use json_repair to fix invalid json while generate structured output by @ZombieBlue in https://github.com/langgenius/dify/pull/18977
• fix(web): fix the wrong components usage(#18995) by @HyaCiovo in https://github.com/langgenius/dify/pull/19065
• fix: fix rerank model runner usage by @ModyQyW in https://github.com/langgenius/dify/pull/19008
• feat: support access milvus with token by @realethanhsu in https://github.com/langgenius/dify/pull/19034
• feat: add AWS Managed IAM auth for OpenSearch vector DB by @lan666as in https://github.com/langgenius/dify/pull/18963
• fix: remove redundant Mermaid graph direction enforcement by @haocheng6 in https://github.com/langgenius/dify/pull/19024
• fix: image preview triggers binary download by @dimsky in https://github.com/langgenius/dify/pull/19070
• fix: change provider should change the content by @crazywoola in https://github.com/langgenius/dify/pull/19075
• Fix: the issue of getting empty environment variables. by @linfey90 in https://github.com/langgenius/dify/pull/19085
• Enhance Code Consistency Across Repository with .editorconfig by @QuantumGhost in https://github.com/langgenius/dify/pull/19023
• fix: Chinese input deletes extra character in Safari within Workspaces (#18193) by @kingsword09 in https://github.com/langgenius/dify/pull/19088
• fix(api): resolve external knowledge API error due to excessive URL validation by @kenwoodjw in https://github.com/langgenius/dify/pull/19003
• add Accept-Ranges header for audio/video files by @sondin in https://github.com/langgenius/dify/pull/19119
• feat(logAndAnn): add control option for question editing feature by @HyaCiovo in https://github.com/langgenius/dify/pull/19117
• fix: fix import LexicalErrorBoundary error by @LeeeeeeM in https://github.com/langgenius/dify/pull/19124
• fix: metadata filter not work by @kingsant in https://github.com/langgenius/dify/pull/19020
• fix: fix render undefined when text children is empty by @LeeeeeeM in https://github.com/langgenius/dify/pull/19135
• fix(i18n): add functions to retrieve document and pricing page languages by @WTW0313 in https://github.com/langgenius/dify/pull/19142
• fix: inconsistent case expression in _process_metadata_filter_func by @IthacaDream in https://github.com/langgenius/dify/pull/19146
• feat: support remove first and remove last in variable assigner by @laipz8200 in https://github.com/langgenius/dify/pull/19144
• immediately return initialed tiktokenizer instance and remove dead code in usage of tiktokenizer by @bowenliang123 in https://github.com/langgenius/dify/pull/17957
• ci: add diff to lint ci by @yihong0618 in https://github.com/langgenius/dify/pull/17874
• fix: mouse scrolling zooming can not function anymore by @junjiem in https://github.com/langgenius/dify/pull/19160
• feat(api): Add image multimodal support for LLMNode by @QuantumGhost in https://github.com/langgenius/dify/pull/17372
• fix: file name incorrect when download file by @hjlarry in https://github.com/langgenius/dify/pull/19183
• fix: fix API tool integration test by @haocheng6 in https://github.com/langgenius/dify/pull/19187
• feat: Plugin page related document supports multiple languages by @ACAne0320 in https://github.com/langgenius/dify/pull/19197
• chore: bump celery from 5.4 to 5.5 by @bowenliang123 in https://github.com/langgenius/dify/pull/19190
• fix: time type metadata filtering error by @IthacaDream in https://github.com/langgenius/dify/pull/19192
• fix: use only supported operators in metadata filter system prompts by @haocheng6 in https://github.com/langgenius/dify/pull/19195
• Fix appURL construction when basePath is empty by @osaimi in https://github.com/langgenius/dify/pull/19234
• chore: required pip and performance improvment in mypy checks by @bowenliang123 in https://github.com/langgenius/dify/pull/19225
• fix: support non-ascii charactors in filename of the tool files by @bowenliang123 in https://github.com/langgenius/dify/pull/19228
• fix basic auth if not base64 encode by @kenwoodjw in https://github.com/langgenius/dify/pull/19242
• Optimize the event handling and rendering logic of the component picker by @441126098 in https://github.com/langgenius/dify/pull/19232
• fix(api): add missing INNER_API_KEY to InnerAPIConfig by @Yeuoly in https://github.com/langgenius/dify/pull/19166
• fix: s.filter is not a function by @crazywoola in https://github.com/langgenius/dify/pull/19250
• feat: sort variables in the selector by x axis for most recent order by @GeorgeCaoJ in https://github.com/langgenius/dify/pull/19243
• Fix: optional input in batch run by @JzoNgKVO in https://github.com/langgenius/dify/pull/19257
• chore: avoid repeated type ignore noqa by adding flask_restful and flask_login in mypy import exclusions by @bowenliang123 in https://github.com/langgenius/dify/pull/19224
• Fix: hide view chat setting button when no inputs form by @JzoNgKVO in https://github.com/langgenius/dify/pull/19263
• fix(structured-output): reasoning model's json format parsing by @Nov1c444 in https://github.com/langgenius/dify/pull/19261
• feat: add mode for /info api by @LeeeeeeM in https://github.com/langgenius/dify/pull/19264
• fix(web): add workspace selector overflow auto by @Bonfireee in https://github.com/langgenius/dify/pull/19265
• Fix doc bug workflow by @bulang in https://github.com/langgenius/dify/pull/19269
• Fix: update docs link by @AllenWriter in https://github.com/langgenius/dify/pull/19278
• chore: enhance dev script robustness by determining the script directory by @iamrajhans in https://github.com/langgenius/dify/pull/19209
• fix(api): fix alembic offline mode by @QuantumGhost in https://github.com/langgenius/dify/pull/19285
• chore: slice workflow refresh draft hook by @zxhlyh in https://github.com/langgenius/dify/pull/19292
• refactor: Remove RepositoryFactory by @laipz8200 in https://github.com/langgenius/dify/pull/19176
• [Observability] Update counter to include http method and target by @TedaLIEz in https://github.com/langgenius/dify/pull/19297
• clean docker compose env. by @zhanluxianshen in https://github.com/langgenius/dify/pull/19301
• feat: store mcp_config when switch agent strategy by @LeeeeeeM in https://github.com/langgenius/dify/pull/19291
• fix: metadata filtering condition variable unassigned; fix External K… by @IthacaDream in https://github.com/langgenius/dify/pull/19208
• fix: reopen switch to 'workflow orchestrate' menu in app detail page by @douxc in https://github.com/langgenius/dify/pull/19274
• fix: llm_usage.total_tokens stat by @IthacaDream in https://github.com/langgenius/dify/pull/19177
• feat: add optional hidden property to endpoint items and filter hidden endpoints in endpoint card by @Yeuoly in https://github.com/langgenius/dify/pull/19163
• Feat/add repo to plugin manifest by @Yeuoly in https://github.com/langgenius/dify/pull/19337
• Bug fix: Invalid edge connection data causes the page to crash. by @hzhufa in https://github.com/langgenius/dify/pull/19369
• fix(web): Add unique instanceId & key for AgentStrategy component (#18053) by @HyaCiovo in https://github.com/langgenius/dify/pull/19386
• fix: inconsistent metadata definitions by @IthacaDream in https://github.com/langgenius/dify/pull/19343
• chore: bump pydantic to 2.11 and pydantic-settings to 2.9 by @bowenliang123 in https://github.com/langgenius/dify/pull/15049
• fix(workflow): Fix the expand/collapse animation effect by @auxpd in https://github.com/langgenius/dify/pull/19398
• fix: support text wrapping in buttons for long content by @DDDDD12138 in https://github.com/langgenius/dify/pull/19390
• fix: chatbot reopen behabior on iOS by @GKTOKWR in https://github.com/langgenius/dify/pull/19406
• test(test_dify_config): Update test to use example environment file by @laipz8200 in https://github.com/langgenius/dify/pull/19427
• fix: support echart function option by @LeeeeeeM in https://github.com/langgenius/dify/pull/19424
• Revert "perf: optimizing db WorkflowAppLog index" by @laipz8200 in https://github.com/langgenius/dify/pull/19432
• refactor(models): Use the SQLAlchemy base model. by @laipz8200 in https://github.com/langgenius/dify/pull/19435
• fix: TenantAccountJoin has no attribute 'query' by @hjlarry in https://github.com/langgenius/dify/pull/19445
• fix: fix pypdfium2 version to 4.30.0 by @utsumi-fj in https://github.com/langgenius/dify/pull/19443
• refactor(workflow): Improve layout structure in VersionHistoryPanel by @ZeroZ-lab in https://github.com/langgenius/dify/pull/19450
• test(vdb/huaweicloudvectordb): Fix the wrong import path by @laipz8200 in https://github.com/langgenius/dify/pull/19413
• clean rag word_extractor. by @zhanluxianshen in https://github.com/langgenius/dify/pull/19397
• fix delete api response by @kenwoodjw in https://github.com/langgenius/dify/pull/19480
• fix_invitation-link.tsx_url_more_basepath_bug by @gq957534377 in https://github.com/langgenius/dify/pull/19453
• fix: db.session.query(TenantAccountJoin) by @crazywoola in https://github.com/langgenius/dify/pull/19482
• chore: update edu version text by @zxhlyh in https://github.com/langgenius/dify/pull/19485
• sort extensions for review, by @zhanluxianshen in https://github.com/langgenius/dify/pull/19470
• Revert "sort extensions for review," by @zhanluxianshen in https://github.com/langgenius/dify/pull/19496
• fix: agent log modal fails to open and the timer is not cleared (#18900) by @yangzheli in https://github.com/langgenius/dify/pull/19471
• refactor(workflow): revamp logging module for loop & iteration nodes by @auxpd in https://github.com/langgenius/dify/pull/19484
• feat: enable Redis client-side caching by @bowenliang123 in https://github.com/langgenius/dify/pull/19493
• chore: remove image csp by @iamjoel in https://github.com/langgenius/dify/pull/19511
• fix: use NextJS basePath and WEB_PREFIX to support custom prefix by @johnny0120 in https://github.com/langgenius/dify/pull/19497
• fix: replace all dataset.Model.query to db.session.query(Model) by @hjlarry in https://github.com/langgenius/dify/pull/19509
• chore: all model.query replace to db.session.query by @hjlarry in https://github.com/langgenius/dify/pull/19521
• fix(web): able to enter Chinese characters in the view-form-dropdown by @fadeaway1680 in https://github.com/langgenius/dify/pull/19555
• correct key to 'embedding_model_provider' in docs by @osaimi in https://github.com/langgenius/dify/pull/19541
• chore: disable redis client-side caching by default by @bowenliang123 in https://github.com/langgenius/dify/pull/19524
• chore(pyproject.toml): Upgrade transformers and resend by @laipz8200 in https://github.com/langgenius/dify/pull/19562
• chore: model.query change to db.session.query by @hjlarry in https://github.com/langgenius/dify/pull/19551
• chore: speed up api service startup time by defering the imports for trace services by @bowenliang123 in https://github.com/langgenius/dify/pull/19504
• Fix btns by @ZeroZ-lab in https://github.com/langgenius/dify/pull/19564
• fix(config): Allow DB_EXTRAS to set search_path via options by @laipz8200 in https://github.com/langgenius/dify/pull/19560
• add endpoint of get feedbacks by @ZombieBlue in https://github.com/langgenius/dify/pull/18697
• fix(vector_service): Fixes type hinting and removes unnecessary ignores by @laipz8200 in https://github.com/langgenius/dify/pull/19574
• Fix: typo ja translation by @KazuSh1geru in https://github.com/langgenius/dify/pull/19583
• fix(web): fix the issue where the detail drawer content does not te after editing custom tools by @HyaCiovo in https://github.com/langgenius/dify/pull/19460
• fix: common prerequisite node workflow remove reachable node that failed to streaming llm… by @SSebo in https://github.com/langgenius/dify/pull/19552
• fix: invitations get suspended when an existing member appears by @GareArc in https://github.com/langgenius/dify/pull/19584
• fix: image use not config host caused page crash by @iamjoel in https://github.com/langgenius/dify/pull/19590
• chore: upgrade package version to fix security issue by @iamjoel in https://github.com/langgenius/dify/pull/19594
• fix(web): Fix metadata modal component （#19573） by @HyaCiovo in https://github.com/langgenius/dify/pull/19592
• chore: Update dependencies in pyproject.toml by @laipz8200 in https://github.com/langgenius/dify/pull/19598
• fix: remove error message $ symbol by @jiangbo721 in https://github.com/langgenius/dify/pull/19587
• fix: not set web prefix use default by @iamjoel in https://github.com/langgenius/dify/pull/19604
• fix: premium badge styling by @nite-knite in https://github.com/langgenius/dify/pull/19609
• fix: fix can't config Nth item in list Node by @LeeeeeeM in https://github.com/langgenius/dify/pull/19618
• fix(web): optimize action buttons style in the question component by @yangzheli in https://github.com/langgenius/dify/pull/19626
• Feat: add theme switcher by @JzoNgKVO in https://github.com/langgenius/dify/pull/18093
• chore: add dev scripts to start api and worker service with uv run by @bowenliang123 in https://github.com/langgenius/dify/pull/19633
• fix:#18447:When variables in the workflow are deleted or modified, it is impossible to visually identify subsequent node errors by @tinet-dongfb in https://github.com/langgenius/dify/pull/18554
• Add /site API by @lexmin0412 in https://github.com/langgenius/dify/pull/19631
• fix:fix log formatting field not found in record: 'req_id' by @rouxiaomin in https://github.com/langgenius/dify/pull/19575
• Feat: add search params with theme in links of marketplace by @JzoNgKVO in https://github.com/langgenius/dify/pull/19648
• feat: add index for workflow_conversation_variables.conversation_id by @laipz8200 in https://github.com/langgenius/dify/pull/19657
• fix: close browser would reset to browser default language by @iamjoel in https://github.com/langgenius/dify/pull/19665
• fix: Referencing Metadata in the response of the External Knowledge A… (#19637) by @satohk in https://github.com/langgenius/dify/pull/19644
• fix: auto translate failed when there is a new file in english by @iamjoel in https://github.com/langgenius/dify/pull/19671
• fix: use different local may not load image by @iamjoel in https://github.com/langgenius/dify/pull/19693
• refactor: simplify success response in dataset API endpoints by returning status code 204 directly by @ZeroZ-lab in https://github.com/langgenius/dify/pull/19685
• Support for copying nodes between workflows (This feature is unrelated to remove functions. When using the copy function, the browser will permanently retain the last copied node)." by @FyhSky in https://github.com/langgenius/dify/pull/19687
• feat(extension): support otel grpc exporter by @minimAluminiumalism in https://github.com/langgenius/dify/pull/19686
• fix: The init_azure_openai() method in the core/hosting_configuration.py file doesn't work (#19704) by @zhaobingshuang in https://github.com/langgenius/dify/pull/19705
• Revert "Support for copying nodes between workflows (This feature is unrelated to remove functions. When using the copy function, the browser will permanently retain the last copied node)."" by @crazywoola in https://github.com/langgenius/dify/pull/19708
• fix: item data type wrong in iteration by @iamjoel in https://github.com/langgenius/dify/pull/19709
• Fix: Ensure unique index names for pgvector knowledge tables by @k-kayashima in https://github.com/langgenius/dify/pull/19672
• feat: update branding by @nite-knite in https://github.com/langgenius/dify/pull/19719
• fix: handle EndpointSetupFailedError in BasePluginClient by @Yeuoly in https://github.com/langgenius/dify/pull/19613
• chore: image allow "data:" in csp by @iamjoel in https://github.com/langgenius/dify/pull/19728
• fix: broken behavior of rendering by @crazywoola in https://github.com/langgenius/dify/pull/19732
• feat: update email templates by @nite-knite in https://github.com/langgenius/dify/pull/19739
• fix: update background gradient and line positioning in Empty component by @WTW0313 in https://github.com/langgenius/dify/pull/19745
• add: new brand image by @crazywoola in https://github.com/langgenius/dify/pull/19676
• chore: Updates version numbers to 1.4.0 and related services by @laipz8200 in https://github.com/langgenius/dify/pull/19731
• Fix: style of check list in dark mode by @JzoNgKVO in https://github.com/langgenius/dify/pull/19744
• chore: upload describe image. by @laipz8200 in https://github.com/langgenius/dify/pull/19756
• update readme by @crazywoola in https://github.com/langgenius/dify/pull/19757
• Fix: style of dataset item in chatbot configure with theme dark by @JzoNgKVO in https://github.com/langgenius/dify/pull/19761
• Fix TiDB vector configuration comment to correctly use 'tidb_vector' by @aryanraj2713 in https://github.com/langgenius/dify/pull/19767
• revert: https://github.com/langgenius/dify/pull/18554 by @crazywoola in https://github.com/langgenius/dify/pull/19787

Full Changelog: https://github.com/langgenius/dify/compare/1.3.1...1.4.0