Opencast 7: Release Notes

New Features

Improvements

Configuration changes

API changes

Due to MH-13397:

Due to MH-13446:

Additional Notes About 7.1

Opencast 7.1 is the first maintenance release for Opencast 7. It fixes a bug with the scheduler migration which may have caused minor issues for old, processed events which were missing some metadata. If you have already migrated to Opencast 7.0 and experience this problem, simply re-start the scheduler migration and re-build the index once more.

Additional Notes About 7.2

Opencast 7.2 fixes a bug in the video editor configuration present in Opencast 7.0 to 7.1 which will cause Opencast to always silently skip the video editor and publish the whole video. The problem was introduced by a fix in the default workflows and later fixed again by a configuration change therein . If you use the default workflows, please make sure to update to the latest state of the workflows.

If you use your own workflow and did not adapt the first patch, you should not be affected by this problem at all. If you are, just make sure that source and target smil flavor for the editor workflow operation are identical like it is ensured by the official fix. A proper solution not relying on specific configurations and less error prone is in work and will be added to the upcoming major Opencast release.

Additional Notes About 7.3

Opencast 7.3 fixes a bug where the audio-source-name parameter of the composite operation defaults to none instead of "dual" in distributed systems, causing the resulting video to have no audio. A workaround for this problem entails setting audio-source-name to "dual" explicitly. Additionally this release fixes another problem in the composite WOH where using the watermark tool causes the operation to fail.

This release also solves a major problem during the index rebuild of the workflow service where the process will sometimes fail with an OutOfMemory error because it's attempting to load all workflows at once. This problem is averted by loading and processing the workflows in increments instead. If you encountered this problem or plan to update to 7 and have a lot of workflows in your system, you should update to 7.3.

7.3 also ensures that the start dates shown in the events table and in the event details are once more consistent by using the bibliographic for both instead of showing the technical date in the events table since this can't be updated via UI for uploaded events and leads to confusion.

Last but not least this release also fixes a known security vulnerability in Apache Santuario, so it is encouraged to update.

Aditional Notes About 7.4

Opencast 7.4 brings a performance fix for some queries in the search API that can cause Opencast to run out of memory.

This release also gives back a patch that was in version 6.x that allows to filter capture agent roles for ACLs and fixes the date cell of the events overview table in the admin UI.

Finally, Opencast 7.4 also brings an update to the CAS security example that was out of date.

Release Schedule

Date Phase
April 1st 2019 Feature Freeze
May 6th - May 12th 2019 Translation week
May 13th - May 26th 2019 Public QA phase
June 13th 2019 Release of Opencast 7.0

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