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2.2.4 / 2025-10-28

  • Bundle chameleon.jpg in the repository and enable the directUploadOriginalStepProducesResult integration test via JAVA_SDK_E2E.
  • Simplify the SSE listener by stopping immediately after assembly_finished now that trailing results are guaranteed.

2.2.3 / 2025-10-27

  • Extend the SSE listener grace window to 10 seconds so assembly_result_finished payloads are not dropped after assembly_finished.
  • Add EventsourceRunnableDelayedResultTest to replay finish-before-result sequences and guard against regressions.

2.2.2 / 2025-10-27

  • Add regression coverage ensuring assembly_result_finished events are processed even if assembly_finished arrives first.
  • Keep the SSE listener draining briefly after completion to capture trailing result payloads while tolerating reconnect-driven duplicates.

2.2.1 / 2025-10-27

  • Ensure the SSE client drains pending events before shutdown while still tolerating transient network faults prior to completion.
  • Prevent duplicate assembly_finished callbacks by only stopping once and leaving reconnect handling to the client until completion.

2.2.0 / 2025-10-27

  • Prevent the SSE client from reconnecting after assembly_finished, eliminating spurious assembly_error callbacks and timeouts.
  • Add regression coverage with a targeted unit test and a live SSE integration test executed via the Docker harness.
  • Confirm the new tests run in CI alongside the existing Gradle check workflow.

2.1.0 / 2025-10-15

  • Added support for external signature generation via SignatureProvider interface (#19)
    • New constructors in Transloadit accepting a SignatureProvider
    • Enables secure signature generation on backend servers for client applications and mobile apps
    • Added unit tests covering the new signing flow
  • Replaced the Nix-based developer environment with a lightweight Docker workflow (scripts/test-in-docker.sh) for consistent, fast test runs across platforms

2.0.1 / 2025-05-12

  • Update tus-java-client dependency to 0.5.1

2.0.0 / 2024-01-14

Major Release

  • Exchange the Socket based assembly status fetching with a Server-Sent-Events (SSE) solution.
  • Added new methods to the AssemblyListener interface to provide more information about the assembly status. e.g. encoding progress with AssemblyListener#onAssemblyProgress().
  • Changed existing methods in the AssemblyListener interface to provide the bare JSON response from the api instead of pre-parsed data.
  • Removed the deprecated AsyncAssemblies class and functionality.
Breaking Changes - Upgrade Guide

  • The AssemblyListener interface has been upgraded. As a result you will have to implement the following methods:

    • onFileUploadFinished(JSONObject uploadInformation);
    • onAssemblyProgress(JSONObject progress)
    • onAssemblyResultFinished(JSONArray result)

  • The AsyncAssembly class has been removed. If you were using it, you will have to switch to the regular Assembly class. It has been extended with asynchronous upload capabilities in the past. The Example under examples/src/main/java/com/transloadit/examples/MultiStepProcessing.java shows how to use the new features.

1.0.1 / 2024-11-28

1.0.0 / 2022-12-14

Major Release

Warning: This version includes breaking changes and some experimental features, please keep that in mind when using it.

If you encounter any problems because of the upgrade, please do not hesitate to contact support@transloadit.com or open a GitHub-Issue.

Breaking Changes - Upgrade Guide
  • The AssemblyListener Interface has been upgraded. As a result you will have to implement the following methods:
    • onFileUploadPaused(String name)
    • onFileUploadResumed(String name)
    • onFileUploadProgress(long uploadedBytes, long totalBytes) If you do not need their functionality, just leave them blank.
  • Also take note of the deprecation of AsyncAssemblies. The normal Assembly class, thanks to its extended functionality, serves as a replacement. You can find more about it further down in the text.
Most Important Innovations:
  • Introduction of multithreaded uploads. - Now you can upload multiple files in parallel:
    • The uploads are pausable via Assembly#pauseUploads().
    • And resumable with Assembly#resumeUploads().
    • The default value of files being uploaded at the same time is 2. You can adjust this with Assembly#setMaxParallelUploads(int maxUploads).
    • If you want to turn off this feature use: Assembly#setMaxParallelUploads(int maxUploads) with a value of 1.
  • The AssemblyListener has now an extended feature set and provides also information to the new upload mode.
  • AsyncAssemblies are deprecated now in favor of multithreaded uploads.
  • Because some users, especially on Android, are using AsyncAssemblies this release ships a fix for the corresponding Listeners to avoid NullPointerExceptions.
  • If you want to add a Step to an Assembly, providing the Robot's name is now optional. This helps if you want to do a Template Override. The provided Examples were revised and new examples have been added.
Minor changes:
  • All dependencies are up-to-date now and include all necessary security patches.
  • Signature Authentication uses HmacSHA384 now.
  • Signature Authentication uses a unique nonce per assembly in order to prevent signature reuse errors.

0.4.4 / 2022-10-30

  • The Socket-IO plugin has been updated to version 4, which is also used by the API.

0.4.3 / 2022-10-28

  • Includes a vulnerability patch in the used socket-io implementation

0.4.2 / 2022-02-03

  • Added possibility for SDKs using this SDK to send their own version number to the server in the Transloadit-Client header.
  • Resolved some file-name conflicts with the tus-java-client library.

0.4.1 / 2021-09-26

  • Added debugging features regarding HTTP-requests, which should not be used in production without contacting Transloadit support.

0.4.0 / 2021-09-26

  • Added support for client-side Assembly IDs. You can obtain the ID of an Assembly now before even uploading/saving it. You can achieve this with the brand-new Assembly#getAssemblyID() method.
  • Added debugging features regarding AssemblyIDs, which should not be used in production without contacting Transloadit support.
  • Also updated the AssemblyListener interface to provide HashMaps instead of JSONObjects.

0.3.0 / 2021-06-27

  • Updated all dependencies to their most recent, compatible version => minimal requirements for the SDK are now Android 5+ and Java 8+.
  • Add (form) fields to an Assembly or Template with the addField()- and addFields() - methods
  • Extended support for Assembly progress updates via the Websocket. => AssemblyListener Interface provides more callback functions now. This should be considered before the update.
  • Codebase received a review and an updated JavaDoc
  • New Example added that uses Kotlin.

0.2.0 / 2021-05-17

  • Added retry functionality for assemblies in case of reaching the rate limit

0.1.6 / 2021-02-24

  • Fix bug that doesn't allow usage of templates that have disabled allow steps override.
  • Added some new examples

0.1.5 / 2019-07-16

  • Make tus uploads to assembly's tus url
  • Make assembly wait till completion

0.1.4 / 2019-04-27

  • Use a fallback version

0.1.3 / 2019-04-18

  • load sdk version via ResourceBundle

0.1.2 / 2019-04-09

  • send client version via "Transloadit-Client" header
  • Do not use deprecated status_endpoint property
  • update tus-java-client version

0.1.1 / 2018-04-23

  • Allow configurable upload chunk size #21

0.1.0 / 2018-04-05

  • Support for Pausable/Resumable Asynchronous assemblies
  • Add assembly files as Inputstream

0.0.6 / 2018-01-19

  • Do tus uploads only when there are files to upload.

0.0.5 / 2018-01-18

  • Check for assembly error before proceeding with tus upload

0.0.4 / 2018-01-08

  • Remove tus upload chunksize

0.0.3 / 2017-05-15

  • Steps.removeStep method
  • Added example project for sample codes
  • Maven compliant deployment build.

0.0.2 / 2017-05-12

  • AssemblyResponse.getStepResult method

0.0.1 / 2017-05-09

  • Initial release