{"type":"doc","content":[{"type":"panel","attrs":{"panelType":"warning"},"content":[{"type":"paragraph","content":[{"text":"The Maple master branches were created on Oct 15, 2021. Changes on master should no longer be noted here. Put them on ","type":"text"},{"type":"inlineCard","attrs":{"url":"https://openedx.atlassian.net/wiki/spaces/COMM/pages/3205201949"}},{"text":" instead.","type":"text"}]}]},{"type":"paragraph"},{"type":"paragraph"},{"type":"paragraph","content":[{"text":"The 13th Open edX community release will be named Maple. ","type":"text"},{"text":"It will be released December 20th, 2021.","type":"text","marks":[{"type":"annotation","attrs":{"annotationType":"inlineComment","id":"befa11e9-b981-4868-ab33-a17313764a42"}}]},{"text":" The maple.master branches will be created two months earlier, on October 9th. Code on master as of October 9th will be part of Maple. Code merged after that will need special handling to be part of Maple.","type":"text"}]},{"type":"paragraph","content":[{"text":"Put stuff here that we have to remember when we start packaging up for Maple. Especially important is information that system installers or operators will need to know. ","type":"text"},{"text":"Please include your name","type":"text","marks":[{"type":"strong"}]},{"text":" when you add an item, so that we can get back to you with questions.","type":"text"}]},{"type":"heading","attrs":{"level":1},"content":[{"text":"Operational","type":"text"}]},{"type":"bulletList","content":[{"type":"listItem","content":[{"type":"paragraph","content":[{"text":" Impeding Breaking Changes (Dec 2021): ","type":"text"},{"type":"mention","attrs":{"id":"557058:23418869-24ef-48b1-83cd-86f8bf9bec79","text":"@Julia Eskew (Deactivated)"}},{"text":" ","type":"text"},{"type":"mention","attrs":{"id":"5eced088c761b10c33e22369","text":"@Connor Haugh (Deactivated)"}},{"text":" ","type":"text"}]},{"type":"bulletList","content":[{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"The current LTI Component XBlock provides an option to \"View resource in a New Window\", which uses JS to launch a new window/tab. Our ORA XBlock opens modals via JS. These capabilities were removed in Chrome v92. Chrome provided a temporary work-around which we now use. The current work-around might cease to work on Dec 14th, 2021, but has been slated to continue until January 2022. A longer term fix is prioritized, and should make its way into Maple. Just want to flag this to make sure it gets included.","type":"text","marks":[{"type":"annotation","attrs":{"annotationType":"inlineComment","id":"86617d93-168f-4441-bb89-8a59d7f40f03"}}]}]}]}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"Studio login changed to OAuth: ","type":"text"},{"type":"mention","attrs":{"id":"5e1a34123e586d0dafecd287","text":"@Tim McCormack"}},{"text":" ","type":"text"}]},{"type":"bulletList","content":[{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"Studio previously shared a session cookie with LMS, and redirected to LMS for login. Studio is changing to become an OAuth client of LMS, using the same SSO configuration that other IDAs use. (See ","type":"text"},{"text":"ARCHBOM-1860","type":"text","marks":[{"type":"link","attrs":{"href":"https://openedx.atlassian.net/browse/ARCHBOM-1860"}}]},{"text":"; OEP-42.)","type":"text"}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"This is a breaking change; follow the ","type":"text"},{"text":"Studio OAuth migration runbook","type":"text","marks":[{"type":"link","attrs":{"href":"https://github.com/edx/edx-platform/blob/master/docs/guides/studio_oauth.rst"}}]},{"text":" as part of upgrading to Maple.","type":"text"}]},{"type":"bulletList","content":[{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"For devstack, run ","type":"text"},{"text":"./provision-ida-user.sh studio studio 18010","type":"text","marks":[{"type":"code"}]}]}]}]}]}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"django-cors-headers version updgraded: ","type":"text"},{"type":"mention","attrs":{"id":"557058:51ebaf03-07cf-4408-b1f4-74abd685656f","text":"@Awais Qureshi"}},{"text":" ","type":"text"}]},{"type":"bulletList","content":[{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"django-cors-headers","type":"text","marks":[{"type":"code"}]},{"text":" version upgraded to 3.2.0. ","type":"text"},{"text":"CORS_ORIGIN_WHITELIST","type":"text","marks":[{"type":"code"}]},{"text":" now requires URI schemes. You will need to update your whitelist to include schemes, for example from this: ","type":"text"},{"text":"CORS_ORIGIN_WHITELIST = [\"foo.com\"]","type":"text","marks":[{"type":"code"}]},{"text":" to ","type":"text"},{"text":"CORS_ORIGIN_WHITELIST = [\"https://foo.com\"]","type":"text","marks":[{"type":"code"}]}]}]}]}]}]},{"type":"heading","attrs":{"level":1},"content":[{"text":"Feature Changes","type":"text"}]},{"type":"heading","attrs":{"level":3},"content":[{"text":"Learning Micro-Frontend","type":"text"}]},{"type":"paragraph","content":[{"text":"The Learning MFE (including both “courseware” and the “course home”) is planned to be the default course experience in Maple.","type":"text"}]},{"type":"paragraph","content":[{"text":"The Nutmeg release will likely entirely drop support for Legacy (that is, LMS-rendered) course experience entirely.","type":"text"}]},{"type":"paragraph","content":[{"text":"Details:","type":"text","marks":[{"type":"strong"}]}]},{"type":"bulletList","content":[{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"Contact People","type":"text","marks":[{"type":"strong"}]}]},{"type":"bulletList","content":[{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"Courseware: ","type":"text"},{"type":"mention","attrs":{"id":"5b77184fe72afd064c8a5bb9","text":"@Kyle McCormick (Deactivated)"}},{"text":" ","type":"text"},{"type":"mention","attrs":{"id":"557058:23418869-24ef-48b1-83cd-86f8bf9bec79","text":"@Julia Eskew (Deactivated)"}},{"text":" ","type":"text"},{"type":"mention","attrs":{"id":"5eced088c761b10c33e22369","text":"@Connor Haugh (Deactivated)"}},{"text":" ","type":"text"}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"Course Home: ","type":"text"},{"type":"mention","attrs":{"id":"5a092e0ec14d1e37ad1ea21b","text":"@Michael Terry (Deactivated)"}},{"text":" ","type":"text"}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"Special Exams: ","type":"text"},{"type":"mention","attrs":{"id":"5c0ff938e578fa1435db4475","text":"@Zach Hancock (Deactivated)"}},{"text":" ","type":"text"}]}]}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"Configuration","type":"text","marks":[{"type":"strong"}]}]},{"type":"bulletList","content":[{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"The ","type":"text"},{"text":"courseware.use_legacy_frontend","type":"text","marks":[{"type":"code"}]},{"text":" and ","type":"text"},{"text":"course_home.course_home_use_legacy_frontend","type":"text","marks":[{"type":"code"}]},{"text":" Waffle flags can be toggled on (either globally or per-course-run) in order to revert to the Legacy (LMS Django-rendered) courseware experience.","type":"text"}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"The domain name for your learning MFE should be added to the ","type":"text"},{"text":"CORS_ORIGIN_WHITELIST","type":"text","marks":[{"type":"code"}]},{"text":" for ecommerce, discovery, lms, and studio. ","type":"text"}]}]}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"Removed Features:","type":"text","marks":[{"type":"annotation","attrs":{"annotationType":"inlineComment","id":"d5d52e99-d32c-478d-a69d-8ce7413c39e0"}},{"type":"strong"}]}]},{"type":"bulletList","content":[{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"Entrance Exams are slated to be deprecated and are never enabled on the MFE. Attempting to start a course with an entrance exam on the MFE results in an error. ","type":"text"},{"type":"inlineCard","attrs":{"url":"https://openedx.atlassian.net/browse/TNL-7046?atlOrigin=eyJpIjoiMzA5Nzk1ZGNjODE5NGNlNzgxOWFhZTMwY2E4NzM2MGEiLCJwIjoiamlyYS1zbGFjay1pbnQifQ"}},{"text":" Using the waffle flags to enable the legacy experience should enable their usage for the time being, but their deprecation is forthcoming.","type":"text"}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"Problemsets and videosequences, which are deprecated variations of the Sequence block will not render in the MFE: ","type":"text"},{"type":"inlineCard","attrs":{"url":"https://openedx.atlassian.net/browse/DEPR-151"}}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"Non-standard course hierarchies. ","type":"text","marks":[{"type":"strong"}]},{"text":"Legacy courseware was willing to render some content that didn’t strictly follow that hierarchy, and that content will break in the MFE.","type":"text"}]},{"type":"paragraph","content":[{"text":"This should only affect courses authored directly in OLX. Studio-authored courses already follow these hierarchy requirements. Essentially, ","type":"text"},{"text":"courses must follow a stricter hierarchy in order to work in the MFE:","type":"text","marks":[{"type":"em"}]}]},{"type":"bulletList","content":[{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"The direct children of the root Course block should be Section (aka Chapter) blocks.","type":"text"}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"The children of the Sections must be Subsections (aka Sequence) blocks. Each Subsection must be part of at most one Section.","type":"text"}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"Children of the Subsections should be “Unit-like” blocks (most commonly Verticals, but HTML/Problem/etc are okay too)","type":"text"}]}]}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"Course search is not (yet?) available in the new Learning MFE Course Outline.","type":"text","marks":[{"type":"annotation","attrs":{"annotationType":"inlineComment","id":"cb3eae92-40b9-402f-88f9-dc7eddaaf9e2"}}]}]}]}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"Altered Features:","type":"text","marks":[{"type":"annotation","attrs":{"annotationType":"inlineComment","id":"301e1ca3-b7c2-42b6-8456-4ef317e7a82b"}},{"type":"strong"}]}]},{"type":"bulletList","content":[{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"The ability for course authors to preview units in the learner experience before they are published will preview in the legacy experience, not the MFE. Work enabling preview using the MFE is anticipated.","type":"text","marks":[{"type":"annotation","attrs":{"annotationType":"inlineComment","id":"1ef4545b-3c43-4ead-a3a2-5f04371f5132"}}]}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"According to the HTML standard, and tags. Legacy courseware incidentally corrected this error when it occurred in course content. MFE courseware does ","type":"text"},{"text":"not","type":"text","marks":[{"type":"em"}]},{"text":" do that correction. Course authors should update their courses to use well-formed HTML if they happened to rely on self-closing

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