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This introdues the idea of "upstream" and "downstream" content, where downstreams (like course components) can pull content updates from upstreams (like learning core-backed content library blocks). This supports the upcoming Content Libraries Relaunch Beta for Sumac. New features include: * A new XBlockMixin: UpstreamSyncMixin. * A new CMS Python API: cms.lib.xblock.upstream_sync * A new CMS JSON API: /api/contentstore/v2/downstreams * A temporary, very basic UI for syncing from Content Library blocks Implements: https://github.com/kdmccormick/edx-platform/blob/kdmccormick/upstream-proto/docs/decisions/0020-upstream-block.rst Co-authored-by: Braden MacDonald <braden@opencraft.com>
Open edX -------- This is the root package for Open edX. The intent is that all importable code from Open edX will eventually live here, including the code in the lms, cms, and common directories. If you're adding a new Django app, place it in core/djangoapps. If you're adding utilities that require Django, place them in core/djangolib. If you're adding code that defines no Django models or views of its own but is widely useful, put it in core/lib. Note: All new code should be created in this package, and the legacy code will be moved here gradually. For now the code is not structured like this, and hence legacy code will continue to live in a number of different packages.