Kollaborate Server 2026.2.1 Beta 2 - side-by-side playback and new file viewers

Kollaborate Server 2026.2.1 Beta 2 was released today as a pre-release version of our self-hosted workflow platform. This builds on Beta 1 which offered a new video player and image viewer.

Side-by-side comparison

You can now load a second file alongside another. You can compare any type of file with another, but if it's the same type it will automatically sync with the other player. Video and audio will sync playheads with each other and switching which file is active will switch audio source. Image viewers will sync zoom and pan position between each other, and document viewers will sync page numbers.

This behavior is customizable via the new Sync Settings panel. You can switch off sychronization and automatic audio and comment switching.

Comments switch automatically depending on which file is active, but you can also manually change this with a new dropdown in the Comments tab.

New document viewer

The document viewer for PDFs has been overhauled and now supports full screen and annotations.

New text viewer

There's a new viewer for text files that supports dynamic loading, meaning it can support very large files. It also supports full screen and there are options for line numbers and word wrap. You can comment on a specific line too.

Overhauled player page

The player page is no longer static, which means it loads faster and actions like setting workflows or switching between files can happen without a page refresh.

Other changes

• If the player can't play back and it shows a download overlay, it shows a message to explain why it couldn't play (e.g. if "force download" was set on the file)
• You can now click on the duration field of the video player to toggle time remaining
• Fixed an issue where some files would incorrectly appear to be unplayable
• Reduced browser memory usage
• Various UI and styling improvements
• Lots of small bug fixes, tweaks and optimizations

Because it's such a large change, we're releasing this update as a beta. Although it's been extensively tested, you should expect bugs in real-world usage.

Kollaborate is an essential cloud workflow platform that allows you to share files with clients and team members while integrating with Digital Rebellion apps and services. Kollaborate Server allows you to host the platform in-house on your own servers and storage. To find out more, see the Kollaborate Server overview or register for the free cloud trial (Server trials are available on request).