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KVS 4.0.4 update

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Update status


4.0.4 update status is FINAL. You can download update in KVS client zone for all your licenses:




Update procedure


Any project starting from 3.0.0 can be updated to 4.0.4 with one only procedure. Depending on your current KVS version, update procedure may contain additional steps for older versions.


You must use KVS update plugin in order to update your project. For update you will need:


- KVS update ZIP archive for your project and its hash code for update plugin (contact support in beta phase to get these).

- FTP connection to your project so that you can upload files.


If your project's version is 3.9.0+, the update procedure is standard and nothing special is expected:

  • Create backup using Backup plugin.
  • Upload update ZIP into KVS update plugin and specify hash code.
  • KVS update plugin will notify you if there are any custom changes in KVS system files, which will be overridden by update (player skins are not checked here, so they will be silently updated if have custom changes).
  • KVS update plugin will update database automatically.
  • You will need to copy files from the archive on top of your project using FTP or filesystem copy. Please make sure you are NOT USING sync functionality in your FTP client, which will delete many files on your server, because obviously update archive contains only part of all files. What you need is just to drag and drop files from update archive on top of your project root folder and confirm their re-writing (excluding _INSTALL folder, it doen't need to be copied).
  • KVS update plugin will verify the updated files and finalize update procedure.
  • You can use System audit plugin to verify everything looks good.

If your project's version is before 3.9.0, the update procedure will be difficult and will include cache reset for the whole site (if you have much traffic it can make your project to be unavailable for some time). Also 3.9.0 update can have issues with displaying the new player if conflicting with your design styles, please check this post listing all issues:

3.9.0 update specifics


Patching 4.0.3 projects


If your project is already on 4.0.3 and you want to take player bugfix only, you can replace this file with the version downloaded from KVS demo site:



This is only possible for 4.0.3 versions, earlier versions should update to 4.0.4 using standard update procedure!


What's new in 4.0.4


1) Critical player Android 9 bugfix and other small fixes and enhancements:

  • Player not working on new Android 9 phones.
  • Push notifications JS file updated as required by advertiser.
  • Grabbers plugin will show better progress indicator when grabbing a big set of videos or albums from a single list URL.
  • Background tasks that deleted video format or timeline screenshots iterated through all videos and could result in long operation time for slow storage server connection.
  • Removed 200 characters limit when configuring storage servers load balancing by countries.


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