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Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[2.44.2] - 2025-09-08

Fixed

[2.44.1] - 2025-09-02

Fixed

[2.44.0] - 2025-09-01

Added

Changed

Removed

Fixed

[2.43.0] - 2025-08-07

Added

Changed

Fixed

[2.42.0] - 2025-07-29

Added

Fixed

Security

[2.41.0] - 2025-07-09

Added

Changed

Deprecated

Fixed

[2.40.1] - 2025-07-07

Fixed

[2.40.0] - 2025-06-25

Added

Changed

Fixed

Security

[2.39.0] - 2025-06-05

Added

Changed

Removed

Fixed

[2.38.0] - 2025-05-27

Added

Changed

  • Cache files with exported events now are stored in /data/cache/export/ instead of /data/tmp/. These files are periodically deleted by the cleanup_export_cache_directory cron job (https://github.com/cvat-ai/cvat/pull/9230)

Deprecated

Removed

Fixed

Security

[2.37.0] - 2025-05-15

Added

Changed

Deprecated

Fixed

[2.36.0] - 2025-05-08

Added

Changed

Deprecated

Fixed

[2.35.0] - 2025-04-29

Changed

Fixed

[2.34.0] - 2025-04-17

Added

Fixed

[2.33.0] - 2025-04-15

Added

Fixed

[2.32.0] - 2025-03-24

Added

Changed

Deprecated

  • Utilizing GET /api/projects/id/dataset?action=import_status API endpoint to check the status of the import process. Instead, the GET /api/requests/rq_id requests API should be used (https://github.com/cvat-ai/cvat/pull/9075)

Removed

Fixed

[2.31.0] - 2025-03-03

Added

Changed

Deprecated

Fixed

[2.30.0] - 2025-02-14

Added

Changed

Fixed

[2.29.0] - 2025-02-10

Added

Changed

Fixed

[2.28.0] - 2025-02-06

Added

Changed

Fixed

[2.27.0] - 2025-02-04

Added

Changed

Fixed

[2.26.1] - 2025-01-29

Added

Changed

Removed

Fixed

[2.26.0] - 2025-01-27

Added

Changed

Fixed

Security

[2.25.0] - 2025-01-09

Added

Changed

Fixed

[2.24.0] - 2024-12-20

Added

Changed

Deprecated

Removed

Fixed

[2.23.1] - 2024-12-09

Changed

Fixed

[2.23.0] - 2024-11-29

Added

Changed

Deprecated

Removed

Fixed

[2.22.0] - 2024-11-11

Added

Changed

Removed

Fixed

[2.21.3] - 2024-10-31

Changed

Removed

Fixed

[2.21.2] - 2024-10-24

Added

Fixed

[2.21.1] - 2024-10-18

Added

Fixed

[2.21.0] - 2024-10-10

Added

Changed

Fixed

[2.20.0] - 2024-10-01

Added

Changed

Deprecated

Removed

Fixed

[2.19.1] - 2024-09-26

Security

[2.19.0] - 2024-09-20

Added

Changed

Removed

Fixed

Security

[2.18.0] - 2024-09-10

Added

Changed

Removed

Fixed

Security

[2.17.0] - 2024-08-27

Added

Changed

Deprecated

Removed

Fixed

[2.16.3] - 2024-08-13

Added

Changed

Fixed

[2.16.2] - 2024-08-06

Changed

Fixed

[2.16.1] - 2024-07-18

Added

Changed

Fixed

[2.16.0] - 2024-07-15

Added

Changed

Removed

Fixed

[2.15.0] - 2024-07-02

Added

Changed

Fixed

[2.14.4] - 2024-06-20

Added

Changed

Fixed

[2.14.3] - 2024-06-13

Changed

Fixed

Security

[2.14.2] - 2024-06-07

Fixed

[2.14.1] - 2024-06-05

Added

Changed

Fixed

[2.14.0] - 2024-05-21

Added

Changed

Fixed

[2.13.0] - 2024-05-09

Added

Changed

Removed

  • The mask_rcnn function has been removed because it was using python3.6. In new version of Nuclio python3.6 is no longer supported. Nuclio officially recommends using python3.9. Running mask_rcnn on python3.9 causes errors within the function and package conflicts. (https://github.com/cvat-ai/cvat/pull/7787)

Fixed

Security

[2.12.1] - 2024-04-26

Fixed

[2.12.0] - 2024-04-15

Added

Changed

Fixed

[2.11.3] - 2024-04-02

Added

Removed

  • The POST /api/tasks/{id}/data endpoint no longer accepts several parameters that didn't have any useful function: size, compressed_chunk_type, original_chunk_type (https://github.com/opencv/cvat/pull/7663)

Fixed

[2.11.2] - 2024-03-11

Changed

Fixed

[2.11.1] - 2024-03-05

Added

Fixed

[2.11.0] - 2024-02-23

Added

Changed

Removed

Fixed

[2.10.3] - 2024-02-09

Changed

Fixed

[2.10.2] - 2024-01-26

Changed

Fixed

[2.10.1] - 2024-01-18

Changed

Fixed

[2.10.0] - 2024-01-10

Changed

Removed

Fixed

[2.9.2] - 2023-12-11

Added

Changed

Fixed

[2.9.1] - 2023-11-23

This release has changes only in the Enterprise version.

[2.9.0] - 2023-11-23

Added

Changed

Removed

Fixed

[2.8.2] - 2023-11-06

Fixed

[2.8.1] - 2023-11-03

Added

Changed

Fixed

[2.8.0] - 2023-10-23

Added

Changed

Removed

  • The endpoints /api/projects, /api/tasks, and /api/jobs will no longer return information regarding the count of labels. This information was complicating SQL queries, making them hard to optimize. Instead, use /api/labels?task_id=tid or /api/labels?project_id=pid. (https://github.com/opencv/cvat/pull/6918)

Fixed

[2.7.6] - 2023-10-13

Changed

Removed

Fixed

Security

[2.7.5] - 2023-10-09

Added

[2.7.4] - 2023-10-06

Added

Fixed

Security

  • Update Grafana from 9.3.6 to 10.1.2

[2.7.3] - 2023-10-02

Added

  • New , form-based Issue templates for Github repository

Removed

Fixed

Security

[2.7.2] - 2023-09-25

Changed

Fixed

[2.7.1] - 2023-09-15

Fixed

[2.7.0] - 2023-09-10

Added

Fixed

Security

[2.6.2] - 2023-09-06

Added

Changed

Removed

Fixed

[2.6.1] - 2023-08-25

Added

Changed

Fixed

Security

[2.6.0] - 2023-08-11

Added

Changed

Removed

Fixed

  • Corrected an issue where the prebuilt FFmpeg bundled in PyAV was being used instead of the custom build.
  • Fixed the filename for labels in the CamVid format (https://github.com/opencv/cvat/pull/6600)

[2.5.2] - 2023-07-27

Added

Changed

  • Helm

Removed

  • Helm

Fixed

[2.5.1] - 2023-07-19

Fixed

[2.5.0] - 2023-07-05

Added

Fixed

Security

  • More comprehensive SSRF mitigations were implemented. Previously, on task creation it was prohibited to specify remote data URLs with hosts that resolved to IP addresses in the private ranges. Now, redirects to such URLs are also prohibited. In addition, this restriction is now also applied to webhook URLs. System administrators can allow or deny custom IP address ranges with the SMOKESCREEN_OPTS environment variable. (https://github.com/opencv/cvat/pull/6362).

[2.4.9] - 2023-06-22

Fixed

[2.4.8] - 2023-06-22

Fixed

[2.4.7] - 2023-06-16

Added

  • API
  • API
  • CLI

Fixed

[2.4.6] - 2023-06-09

Added

Changed

Changed

Fixed

[2.4.5] - 2023-06-02

Added

Changed

Deprecated

Fixed

[2.4.4] - 2023-05-18

Added

Changed

Fixed

[2.4.3] - 2023-04-24

Changed

[2.4.2] - 2023-04-14

Added

Changed

Deprecated

  • TDB

Removed

Fixed

Security

[2.4.1] - 2023-04-05

Fixed

[2.4.0] - 2023-03-16

Added

Changed

Deprecated

  • TBD

Removed

  • Server API
    /project/{id}/tasks, /tasks/{id}/jobs, /jobs/{id}/issues, /issues/{id}/comments. Corresponding fields are added or changed to provide a link to the child collection in /projects/{id}, /tasks/{id}, /jobs/{id}, /issues/{id} (https://github.com/opencv/cvat/pull/5575)
  • Limit on the maximum number of manifest files that can be added for cloud storage (https://github.com/opencv/cvat/pull/5660)

Fixed

Security

[2.3.0] - 2022-12-22

Added

Changed

Removed

Fixed

Security

[2.2.0] - 2022-09-12

Added

Changed

  • Bumped nuclio version to 1.8.14
  • Simplified running REST API tests. Extended CI-nightly workflow
  • REST API tests are partially moved to Python SDK (users, projects, tasks, issues)
  • cvat-ui: Improve UI/UX on label, create task and create project forms (https://github.com/cvat-ai/cvat/pull/7)
  • Removed link to OpenVINO documentation (https://github.com/cvat-ai/cvat/pull/35)
  • Clarified meaning of chunking for videos

Fixed

[2.1.0] - 2022-04-08

Added

Changed

Fixed

[2.0.0] - 2022-03-04

Added

Changed

Deprecated

Removed

Fixed

Security

[1.7.0] - 2021-11-15

Added

Changed

Fixed

Security

[1.6.0] - 2021-09-17

Added

Changed

Removed

Fixed

[1.5.0] - 2021-08-02

Added

Changed

Fixed

[1.4.0] - 2021-05-18

Added

Changed

Removed

Fixed

[1.3.0] - 3/31/2021

Added

Changed

Fixed

[1.2.0] - 2021-01-08

Fixed

[1.2.0-beta] - 2020-12-15

Added

Changed

Fixed

[1.2.0-alpha] - 2020-11-09

Added

Changed

Removed

  • Removed Z-Order flag from task creation process

Fixed

[1.1.0] - 2020-08-31

Added

Changed

Fixed

[1.1.0-beta] - 2020-08-03

Added

Changed

Removed

Fixed

[1.1.0-alpha] - 2020-06-30

Added

Changed

Fixed

Security

[1.0.0] - 2020-05-29

Added

Changed

Removed

Fixed

Security

[1.0.0-beta.2] - 2020-04-30

Added

Removed

Fixed

[1.0.0-beta.1] - 2020-04-15

Added

Changed

  • Increase preview size of a task till 256, 256 on the server
  • Public ssh-keys are displayed in a dedicated window instead of console when create a task with a repository
  • React UI is the primary UI

Fixed

[1.0.0-alpha] - 2020-03-31

Added

Fixed

[0.6.1] - 2020-03-21

Changed

  • VOC task export now does not use official label map by default, but takes one from the source task to avoid primary-class and class part name clashing (#1275)

Fixed

  • File names in LabelMe format export are no longer truncated (#1259)
  • occluded and z_order annotation attributes are now correctly passed to Datumaro (#1271)
  • Annotation-less tasks now can be exported as empty datasets in COCO (#1277)
  • Frame name matching for video annotations import - allowed frame_XXXXXX[.ext] format (#1274)

Security

  • Bump acorn from 6.3.0 to 6.4.1 in /cvat-ui (#1270)

[0.6.0] - 2020-03-15

Added

  • Server only support for projects. Extend REST API v1 (/api/v1/projects*)
  • Ability to get basic information about users without admin permissions (#750)
  • Changed REST API: removed PUT and added DELETE methods for /api/v1/users/ID
  • Mask-RCNN Auto Annotation Script in OpenVINO format
  • Yolo Auto Annotation Script
  • Auto segmentation using Mask_RCNN component (Keras+Tensorflow Mask R-CNN Segmentation)
  • REST API to export an annotation task (images + annotations) Datumaro - a framework to build, analyze, debug and visualize datasets
  • Text Detection Auto Annotation Script in OpenVINO format for version 4
  • Added in OpenVINO Semantic Segmentation for roads
  • Ability to visualize labels when using Auto Annotation runner
  • MOT CSV format support (#830)
  • LabelMe format support (#844)
  • Segmentation MASK format import (as polygons) (#1163)
  • Git repositories can be specified with IPv4 address (#827)

Changed

  • page_size parameter for all REST API methods
  • React & Redux & Antd based dashboard
  • Yolov3 interpretation script fix and changes to mapping.json
  • YOLO format support (#1151)
  • Added support for OpenVINO 2020

Fixed

  • Exception in Git plugin #826
  • Label ids in TFrecord format now start from 1 #866
  • Mask problem in COCO JSON style #718
  • Datasets (or tasks) can be joined and split to subsets with Datumaro #791
  • Output labels for VOC format can be specified with Datumaro #942
  • Annotations can be filtered before dumping with Datumaro #994

[0.5.2] - 2019-12-15

Fixed

  • Frozen version of scikit-image==0.15 in requirements.txt because next releases don't support Python 3.5

[0.5.1] - 2019-10-17

Added

  • Integration with Zenodo.org (DOI)

[0.5.0] - 2019-09-12

Added

  • A converter to YOLO format
  • Installation guide
  • Linear interpolation for a single point
  • Video frame filter
  • Running functional tests for REST API during a build
  • Admins are no longer limited to a subset of python commands in the auto annotation application
  • Remote data source (list of URLs to create an annotation task)
  • Auto annotation using Faster R-CNN with Inception v2 (utils/open_model_zoo)
  • Auto annotation using Pixel Link mobilenet v2 - text detection (utils/open_model_zoo)
  • Ability to create a custom extractors for unsupported media types
  • Added in PDF extractor
  • Added in a command line model manager tester
  • Ability to dump/load annotations in several formats from UI (CVAT, Pascal VOC, YOLO, MS COCO, png mask, TFRecord)
  • Auth for REST API (api/v1/auth/): login, logout, register, ...
  • Preview for the new CVAT UI (dashboard only) is available: http://localhost:9080/
  • Added command line tool for performing common task operations (/utils/cli/)

Changed

  • Outside and keyframe buttons in the side panel for all interpolation shapes (they were only for boxes before)
  • Improved error messages on the client side (#511)

Removed

  • "Flip images" has been removed. UI now contains rotation features.

Fixed

  • Incorrect width of shapes borders in some cases
  • Annotation parser for tracks with a start frame less than the first segment frame
  • Interpolation on the server near outside frames
  • Dump for case when task name has a slash
  • Auto annotation fail for multijob tasks
  • Installation of CVAT with OpenVINO on the Windows platform
  • Background color was always black in utils/mask/converter.py
  • Exception in attribute annotation mode when a label are switched to a value without any attributes
  • Handling of wrong labelamp json file in auto annotation (https://github.com/opencv/cvat/issues/554)
  • No default attributes in dumped annotation (https://github.com/opencv/cvat/issues/601)
  • Required field "Frame Filter" on admin page during a task modifying (#666)
  • Dump annotation errors for a task with several segments (#610, #500)
  • Invalid label parsing during a task creating (#628)
  • Button "Open Task" in the annotation view
  • Creating a video task with 0 overlap

Security

  • Upgraded Django, djangorestframework, and other packages

[0.4.2] - 2019-06-03

Fixed

  • Fixed interaction with the server share in the auto annotation plugin

[0.4.1] - 2019-05-14

Fixed

  • JavaScript syntax incompatibility with Google Chrome versions less than 72

[0.4.0] - 2019-05-04

Added

  • OpenVINO auto annotation: it is possible to upload a custom model and annotate images automatically.
  • Ability to rotate images/video in the client part (Ctrl+R, Shift+Ctrl+R shortcuts) (#305)
  • The ReID application for automatic bounding box merging has been added (#299)
  • Keyboard shortcuts to switch next/previous default shape type (box, polygon etc) (Alt + <, Alt + >) (#316)
  • Converter for VOC now supports interpolation tracks
  • REST API (/api/v1/*, /api/docs)
  • Semi-automatic semantic segmentation with the Deep Extreme Cut work

Changed

  • Propagation setup has been moved from settings to bottom player panel
  • Additional events like "Debug Info" or "Fit Image" have been added for analytics
  • Optional using LFS for git annotation storages (#314)

Deprecated

  • "Flip images" flag in the create task dialog will be removed. Rotation functionality in client part have been added instead.

Fixed

  • Django 2.1.5 (security fix, CVE-2019-3498)
  • Several scenarios which cause code 400 after undo/redo/save have been fixed (#315)

[0.3.0] - 2018-12-29

Added

  • Ability to copy Object URL and Frame URL via object context menu and player context menu respectively.
  • Ability to change opacity for selected shape with help "Selected Fill Opacity" slider.
  • Ability to remove polyshapes points by double click.
  • Ability to draw/change polyshapes (except for points) by slip method. Just press ENTER and moving a cursor.
  • Ability to switch lock/hide properties via label UI element (in right menu) for all objects with same label.
  • Shortcuts for outside/keyframe properties
  • Support of Intel OpenVINO for accelerated model inference
  • Tensorflow annotation now works without CUDA. It can use CPU only. OpenVINO and CUDA are supported optionally.
  • Incremental saving of annotations.
  • Tutorial for using polygons (screencast)
  • Silk profiler to improve development process
  • Admin panel can be used to edit labels and attributes for annotation tasks
  • Analytics component to manage a data annotation team, monitor exceptions, collect client and server logs
  • Changeable job and task statuses (annotation, validation, completed). A job status can be changed manually, a task status is computed automatically based on job statuses (#153)
  • Backlink to a task from its job annotation view (#156)
  • Buttons lock/hide for labels. They work for all objects with the same label on a current frame (#116)

Changed

  • Polyshape editing method has been improved. You can redraw part of shape instead of points cloning.
  • Unified shortcut (Esc) for close any mode instead of different shortcuts (Alt+N, Alt+G, Alt+M etc.).
  • Dump file contains information about data source (e.g. video name, archive name, ...)
  • Update requests library due to CVE-2018-18074
  • Per task/job permissions to create/access/change/delete tasks and annotations
  • Documentation was improved
  • Timeout for creating tasks was increased (from 1h to 4h) (#136)
  • Drawing has become more convenience. Now it is possible to draw outside an image. Shapes will be automatically truncated after drawing process (#202)

Fixed

  • Performance bottleneck has been fixed during you create new objects (draw, copy, merge etc).
  • Label UI elements aren't updated after changelabel.
  • Attribute annotation mode can use invalid shape position after resize or move shapes.
  • Labels order is preserved now (#242)
  • Uploading large XML files (#123)
  • Django vulnerability (#121)
  • Grammatical cleanup of README.md (#107)
  • Dashboard loading has been accelerated (#156)
  • Text drawing outside of a frame in some cases (#202)

[0.2.0] - 2018-09-28

Added

  • New annotation shapes: polygons, polylines, points
  • Undo/redo feature
  • Grid to estimate size of objects
  • Context menu for shapes
  • A converter to PASCAL VOC format
  • A converter to MS COCO format
  • A converter to mask format
  • License header for most of all files
  • .gitattribute to avoid problems with bash scripts inside a container
  • CHANGELOG.md itself
  • Drawing size of a bounding box during resize
  • Color by instance, group, label
  • Group objects
  • Object propagation on next frames
  • Full screen view

Changed

  • Documentation, screencasts, the primary screenshot
  • Content-type for save_job request is application/json

Fixed

  • Player navigation if the browser's window is scrolled
  • Filter doesn't support dash (-)
  • Several memory leaks
  • Inconsistent extensions between filenames in an annotation file and real filenames

[0.1.2] - 2018-08-07

Added

  • 7z archive support when creating a task
  • .vscode/launch.json file for developing with VS code

Fixed

  • #14: docker-compose down command as written in the readme does not remove volumes
  • #15: all checkboxes in temporary attributes are checked when reopening job after saving the job
  • #18: extend CONTRIBUTING.md
  • #19: using the same attribute for label twice -> stuck

Changed

  • More strict verification for labels with attributes

[0.1.1] - 2018-07-6

Added

  • Links on a screenshot, documentation, screencasts into README.md
  • CONTRIBUTORS.md

Fixed

  • GitHub documentation

[0.1.0] - 2018-06-29

Added

  • Initial version