Release notes
26th May 2026
v1.8.3 launches Embeddables — a new way to drop Coassemble learning experiences, authoring tools and analytics dashboards directly into your own apps and platforms using signed-URL iframes, backed by workspace-level API keys and a new developer documentation site. Alongside Embeddables, image generation moves out of beta on a new model with a manual trigger, AI narration adds two new voice locales, and a wave of authoring, video and translation improvements ship. The release also wraps in the hotfixes that have gone to production since v1.8.2.
New Features
Embeddables
Coassemble Embeddables go live in v1.8.3 as a fully supported, customer-facing capability. Customers can drop Coassemble learning experiences, authoring tools and analytics dashboards directly into their own apps and platforms using signed-URL iframes. A new developer documentation site walks through every embeddable component end to end, with live code examples. Availability of individual embeddables varies by plan — see the developer docs for the current plan matrix.
A standout in this release: Collections are now first-class in Headless for the first time. Until now, Headless only supported courses. v1.8.3 introduces a full Collection REST API (GET /collections, GET /collections/{id}, POST /collection, DELETE /collection/{id}, POST /collection/{id}/restore) and a full set of Collection embeddables — Player, Builder, List, Card and Analytics — so integrations can programmatically create, manage and embed collections of courses end to end.
Course Player and Collection Player — embed interactive courses and collections for learners, with per-user signed URLs
Course Card and Collection Card — embed a single course or collection as a clickable preview card
Course List and Collection List — embed a browsable list of courses or collections as card grids
Course, Collection and User Analytics — embed read-only dashboards showing engagement, completion and user-level activity
Course Builder and Collection Builder — embed Coassemble's authoring and collection-management tools directly inside your product
course.generated postMessage event — the embedded Course Builder now posts a course.generated event to the parent window when AI course generation completes, with the course's id, title and screenCount, so host apps can react the moment a course is ready
Workspace-scoped API keys — a new COASSEMBLE:
: key format replaces the old user-level keys, so integrations no longer break when the owning user rotates a key or leaves the workspace. Existing COASSEMBLE-V1-SHA256 keys continue to work Tiered API actions — API keys now carry capability tiers, so each plan only unlocks the embeddables and endpoints included in its tier
New developer documentation site — full reference for embeddables, the REST API (Courses, Collections, Themes, Identities, Tracking, Translations, Usage, Generate), webhooks, events and errors
Image generation: now manual, powered by Gemini Flash 2.5
AI image generation is moving out of beta with an upgraded model — Gemini Flash 2.5, replacing Imagen (which Google is sunsetting). Image generation is now triggered on demand instead of running automatically, giving authors full control over when images are created and tokens are used.
Manual generation — images are no longer auto-generated when creating courses from a prompt, transforming documents, or generating screens
Monthly token allowance — a monthly image generation allowance is now in effect on some plans, with a clear usage indicator in the AI image modal. Existing headless customers are not affected
New narration voices
- Added French (Canada) and Spanish (Mexico) voices to AI narration, expanding language coverage for global teams
More reliable narration
A round of improvements to make narration generation faster to recover from transient issues and clearer when something goes wrong.
Categorised publish errors — the publish modal now groups narration errors with targeted retry and edit actions, so authors know exactly what to do next
Smarter retries — narration generation now retries on transient Google TTS timeouts and 503s, with a long-text fallback for big scripts
Automatic re-generation triggers — adding, removing or altering questions now correctly flags narrations for regeneration
Cleaner script handling — auto narration is preserved when a custom script is absent, and the narration modal's language is now read-only as intended
Bug Fixes & Improvements
Fixed an issue where video playback would fail to recover when Mux returned a 404 or had no static rendition available — playback now falls back gracefully and retries on 429 responses
Resolved YouTube embeds failing to initialise with the enablejsapi flag, and YouTube fullscreen breaking inside nested SCORM iframes
Fixed Vimeo oEmbed producing a duplicate url parameter on the XHR request
Resolved a video status polling issue that was being incorrectly caught by the global rate limit
Fixed course player crashes where the screens array could be missing or malformed — added guards across navigation, completion and oEmbed restoration
Resolved a course revert issue where the course theme wasn't returned, so revert sometimes left themes out of sync
Fixed an issue where quiz generation would occasionally not return any questions when creating a new screen
Fixed finish screen narration properties not persisting, and paragraph breaks being stripped from narration text
Resolved standalone narration not playing when narration was not enforced or there was no start button
Fixed a folder restoration bug where restoring a course would clear its folderId instead of returning it to its original folder
Resolved an issue where adding to a folder before it had loaded would silently fail
Fixed paste into the email-multi share field being broken after a recent text input change
Resolved an issue where reordering questions unnecessarily bumped the course's updated timestamp
Coassemble 1.8.2
31 March 2026
New Features
Improved Folder Functionality
We've made it easier to discover and use folders on your dashboard, plus added new ways to organise your courses.
A new Folder button in the dashboard header makes it clearer how to create folders
Drag and drop courses into existing folders to organise them quickly
Drag a course onto another course to automatically create a new folder containing both
Available on plans with folder access
Sign in with Slack
You can now use your Slack account to sign up and sign in to Coassemble.
Sign in with Slack is available on the sign-in screen, registration flow, and when returning with an existing account
One-click authentication — no extra password to remember
Works alongside existing sign-in options like Google and email
Bug Fixes & Improvements
Fixed an issue where quiz generation could fail silently — errors are now handled gracefully
Resolved video playback issues related to the Mux migration, including missing static renditions and metadata formatting
Fixed a bug where course narration wouldn't play correctly when the start button was hidden
Fixed learner progress tracking failing in certain edge cases
Resolved an issue where reverting a course didn't properly restore the course theme
Fixed quiz screen creation so questions are always returned correctly when adding new screens
Improved video upload reliability, including better retry handling when the video service is busy
Coassemble 1.8.1
17 March 2026
Major Features
Brand Voice
Introducing Brand Voice, a new way to ensure AI-generated content matches your organisation's tone and style.
You can now:
Define your brand's primary voice and adjust traits like friendly vs. professional, casual vs. formal, and more
Set a default language for all AI-generated content
Add writing examples so the AI learns your specific style and rhythm
Specify preferred vocabulary — terms to favour and terms to avoid
Choose an image generation style (Photo, Cinematic, Drawing, Vector, Painting) and exclude unwanted imagery
Available on Enterprise plans.
Video Transcoding Infrastructure
We've replaced Mux with a new region-locked video transcoding pipeline built on AWS MediaConvert. While Mux supported region-locking for US and EU, it did not support the UK.
All video uploads, transcoding, and delivery now stay entirely within their deployment region (US, EU, or UK)
UK enterprise customers can now meet the same data residency requirements previously only available in US and EU
Videos are transcoded into multiple quality levels with adaptive bitrate streaming
No changes to your day-to-day workflow
Webhooks
Subscribe to real-time event notifications for your courses via webhook endpoints.
Configure endpoints in Settings → Webhooks to receive POST requests for key course events
Each delivery includes course details, learner information, and a signing secret for verification
Failed deliveries are automatically retried
Video Asset Library
Videos can now be uploaded and managed in your Asset Library alongside images.
Browse, search, and reuse video assets across courses without re-uploading
Multi-file uploads are supported
Videos display real previews in the library grid
Translations API
A new public API for programmatically managing course translations, ideal for headless integrations.
Create, sync, and manage translations via API endpoints
Set default languages and sync after source content updates
Improvements
Collection admins can now customise finish screen navigation when courses are part of a collection, configuring different button labels and destinations for mid-collection vs. final courses.
On screens with unsynced narrations, a single standalone voiceover button now appears instead of individual item-level narrations.
When advancing through quiz questions, focus now automatically moves to the new question content, improving the experience for keyboard and screen reader users.
Internal infrastructure for Sevalla-hosted environments (EU and UK) is now codified with Terraform.
Shared template links now work for people who don't yet have a Coassemble account.
Bug Fixes
Pop quiz results now correctly show a failing message when only a few answers are provided, instead of incorrectly reporting a pass.
Deleted quiz questions are no longer included in tracking API responses.
Collection themes are now correctly applied when viewing a collection via a direct link in the app.
Fixed checkbox selection not responding to clicks.
Exporting a filtered Activity Report now exports only the filtered data, not the entire dataset.
Brand Kit logos now display correctly when a custom theme is applied.
Autoplay narrations no longer play on the course preview screen when selecting a microcourse module.
Coassemble 1.8.0
Feb 23, 2026
Major Features
Brand Kit
Introducing Brand Kit, a new way to manage and apply your organisation’s branding across Coassemble.
You can now:
Create and save reusable custom themes (colours, typography, body text styling)
Upload and manage multiple logo variants (SVG, PNG, JPG)
Access your Image Library from within Brand Kit
Upload custom fonts (WOFF, WOFF2, TTF, OTF)
Course-Level Quiz Success Status (SCORM)
Quiz results now roll up to the course level and emit a success status via SCORM.
Single-quiz courses report the quiz result
Multi-quiz courses calculate success using the average score across all quizzes
Supported for Standalone and Dynamic SCORM
Improvements
Users are now taken directly into the course editor immediately after course generation completes.
Introduced a 50MB file size limit for document transformation and conversion processes to improve reliability.
Added standalone Share and Insights buttons to Collection cards.
Summary statistics now load immediately without requiring all learner data to be manually loaded.
Implemented final updates following the second round of independent audit for WCAG accessibility assessment.
Bug Fixes
Collection Insights summary statistics now display correctly without needing to wait for all learner data to load.
Fixed an issue where sharing to a Slack channel did not generate a pre-authorised link.
Changing a course theme before taking any other action will no longer prevent you from adding screens.
The Convert a Presentation flow now correctly prompts you to import images.
Narration scripts will no longer include the name of the video file.
Coassemble 1.7.9
14 January 2026
Improvements
Accessibility & Compliance
- WCAG 2 Compliance: Implemented several accessibility enhancements following an independent audit to ensure a more inclusive experience for all users.
API & Headless
AI Control for Headless: Added a new API flag that allows Headless customers to completely disable all AI functionality. This supports organizations with strict policies regarding AI-driven services.
Revert Endpoint Stability: Resolved a technical issue where calling the revert endpoint caused the clientIdentifier to return as null.
Content & Learning Experience
- SCORM Progress Persistence: Implemented a "progress restore state" for Static SCORM packages, ensuring learners can pick up exactly where they left off.
Bug fixes
Fixed a bug where quiz questions were appearing in a random order rather than the designated sequence.
Corrected an issue where the wrong quiz attempt data was being displayed in the Insights tab.
Resolved an issue that allowed multiple sign-ups using the same email address.
Fixed a Firefox-specific bug that prevented long titles from saving on the Start screen.
Patched an issue that prevented some users from progressing past the account verification step.
Coassemble 1.7.8
10 December 2025
New Features & Improvements
Narrations for translations
Users can now generate narrations for translated courses. The voice is automatically chosen depending on the language of the translation.
SCORM Tracking records available via API
SCORM tracking data is now accessible through the API, enabling Headless customers to view and manage records programmatically. This also allows use of the existing delete endpoint: DELETE /api/v1/headless/tracking.
Duplicate courses across workspaces
Creators with multiple workspaces can now duplicate a course from one workspace to another, simplifying multi-workspace workflows and content distribution.
Template Links for course sharing
Courses can now be shared as a template that can be edited in another workspace, even those they are not a member of.
Standalone SCORM Progress Events
Standalone SCORM packages now emit progress events on every screen, ensuring more accurate tracking and smoother integrations.
Coassemble 1.7.7
17 November 2025
Major Features
Detailed quiz insights for learners and creators
Learners and creators now have access to a detailed breakdown of quiz results. Learners can review their performance immediately after completing a quiz. Creators can view detailed attempt data in Course Insights.
Improved image generation
Coassemble now uses Google's Imagen for AI-generated images.
Learning outcomes step for AI course creation
The AI course creation flow now asks for learning outcomes before generating your course.
Improvements
You can now set custom thumbnails for lessons.
Navigation and pagination refinements.
Added Slack user verification.
Images now preload on course load.
Changes to data processing and AI
Improved AI processing performance and reliability. Connected directly to Gemini Flash and Imagen. Convert API now region-locked to US.
Bug Fixes
Fix for re-listening narration issue.
Image generation failure fix.
Undo/Redo fix.
Standalone SCORM compile fix.
Quiz reattempt settings fix.
Coassemble 1.7.6
5 November 2025
Major Features
AI Narrations
You can now add high-quality AI voiceovers to courses.
Course Publishing
Control when updates go live by publishing drafts.
Minor Improvements
Consolidated thumbnail generation.
Enhanced presentation conversion.
Flashcards alignment updates.
Accessibility fixes.
Mobile navigation improvements.
Bug Fixes
Answer add button fix.
Hotspot empty title fix.
True/False auto-correct selection fix.
Coassemble 1.7.5
29 September 2025
New Features & Improvements
Loom Integration
Users can record their screen directly.
Alternative text management
Improved handling and reuse of alt text.
Flashcards update
Added flip button for learners.
Bug Fixes
Match Corresponding response fixes.
Quiz question visibility fix.
Updated email preferences fix.
Export performance improvements.
SCORM completion fix.
Collection insights accuracy fix.
Duplicate email creation fix.
Coassemble 1.7.4
22 September 2025
New Features & Improvements
POST route for signed URLs
New POST route added; GET deprecated.
Headless usage report enhancement
Added total course views.
Loader for dynamic SCORM files
Improved load experience.
Bug Fixes
Static SCORM completion fix.
Incorrect collection insight fix.
Collection insights load fix.
Coassemble 1.7.3
25 August 2025
New Features & Improvements
Slack Integration
Share courses directly to Slack; real-time notifications.
Headless Creator Reports
Detailed creator activity reports.
Video Backup Service
Videos backed up to AWS S3.
Fixes & Improvements
ALT tag saving fix.
Document image import fix.
Collections layout fix.
Accordion item removal fix.
Coassemble 1.7.2
04 August 2025
New Features & Improvements
Redesigned Share Modal
Streamlined UI with Approved Domains.
Approved Domains
Restrict access by domain.
New API Endpoint
Programmatic course generation.
Other Improvements
Better undo/redo tracking.
Quiz scores added to Insights exports.
Vimeo playback speed defaults enabled.
Bug Fixes
- Match Corresponding visibility fix.
Coassemble 1.7.1
22 July 2025
New Features & Improvements
Multiple Document Support.
Increased max course duration.
Improved quiz defaults.
Better progress tracking.
Tag support for Headless.
Error notifications.
Back navigation for AI creation.
Bug Fixes
Share modal removal issue.
Collections not saving.
Completed panel empty fix.
Google Drive Headless fix.
Coassemble 1.7.0
14 July 2025
New Features & Improvements
Standalone SCORM export
Allows export without Coassemble connection.
New Enterprise plan
Includes Translations and Standalone SCORM.
Miscellaneous
Improved Google Drive integration.
Added timestamps to exported reports.
Coassemble 1.6.10
23 June 2025
New Features & Improvements
Google Drive integration.
Microsoft OneDrive integration.
Headless API updates.
Bug Fixes
- Fixed incorrect email linking.
Coassemble 1.6.9
23 June 2025
New Features & Improvements
Translations for Headless.
Quiz Answer Storage API access.
Bug Fixes
Share modal input fix.
Duplicate quiz deletion fix.
Quiz save issues fixed.
Hotspot image replacement fix.
Coassemble 1.6.8
02 June 2025
New Features
Presentation-to-course conversion.
API support for conversion.
Editable Flashcards finish state.
True/False translation support.
Finish button URL setting.
Extend Image feature.
Bug Fixes
Video resume fix.
Thumbnail autoplay fix.
Flashcard stack fix.
Mobile hotspot modal fix.
Coassemble 1.6.7
19 May 2025
Onboarding Experience
New flows letting users preview AI course builder before signup.
Bug Fixes & Improvements
Improved image relevance.
Flashcards display fix.
Hotspot mobile image fix.
Coassemble 1.6.6
29 April 2025
New Features
- New AI assistant for course creation.
Improvements
Start/Finish email notifications.
Dashboard shortcuts.
New Headless endpoints.
Coassemble 1.6.5
31 March 2025
New Features
AI-powered Screen Generation.
SCORM Anywhere sharing.
Headless enhancements.
Improvements
Hotspot reordering.
AI-generated quizzes.
Image generation improvements.
Insights infinite scroll.
Coassemble 1.6.4
20 March 2025
New Features
Refine feature.
AI image generation (BETA).
API theming support.
Improvements
Sidebar redesign.
Removed automatic Unsplash images.
Rich text for checklist.
Bug Fixes
- Collections image alignment fix.
Coassemble 1.6.3
13 March 2025
New Features
Workspace ownership transfer.
Insights export.
Duplicate endpoint.
Improvements
Insights performance.
Match Corresponding updates.
Thumbnail generator rebuild.
Saved dashboard sort.
Bug Fixes
- Document parsing fix.
Coassemble 1.6.2
11 March 2025
New Feature: Collections
Group multiple courses into pathways.
25 February 2025
Bug Fixes
- Fixed course load failures due to thumbnail regeneration.
Infrastructure Changes: 18 February 2025
Enterprise Server Deployed
Dedicated delayed-release server for Enterprise Headless.
16 February 2025
Bug Fixes
- Fixed Document-to-Course generating only 5-6 screens.
11 February 2025
Bug Fixes
- Sub-item navigation and mobile legibility fixes.
08 February 2025
Bug Fixes
- Fixed Arabic course generation issues.
06 February 2025
Bug Fixes
OpenGraph tag fix.
Thumbnail not updating fix.
Quiz question visibility fix.
SCORM object load fix.
Coassemble 1.6.1
21 January 2025
Onboarding Improvements
Streamlined onboarding for new users.
Coassemble 1.6.0
08 January 2025
Bug Fixes
- Bulk invite issues fixed.
Improvements
Removed English labels from Quizzes and Flashcards.
Test mode for payment links.
Onboarding improvements.
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