v2026.08

🚀 What's Changed

Across the platform

• Removed Adaptive training mode; removed the "linear" terminology as the only mode is now linear
• Added a clear button to all relevant inputs, with unified behaviour throughout
• Capped titles and names at 256 characters, and token prefixes at 32
• Long text truncated in tables and cards reveals itself on hover, and only when actually clipped
• Multi-line fields grow to fit their content instead of being dragged to resize
• Unsaved changes state now persists on save failures
• Removed all D3-based visualizations and replaced them with ECharts visualizations

New charts

• All charts poll live data and offer CSV export
• Progress - per-trainee progress across levels over time
  • Added a duration mode aligning every run to zero and showing elapsed time only
  • Added an event type filter
• Status tiles - run state, time remaining, hints used and score
• Feedback overview - one trainee's identity and how their run concluded
• Live event feed - aggregated feed of most recent events
• Scoreboard - trainees ranked by score and duration
• Players per level - number of active runs at each level
• Score attainment - distribution of trainees across score bands
• Level difficulty - per-level difficulty from wrong answers, hints, solutions and time
• Top wrong answers - most frequent incorrect answers per level
• Trainee wrong answers - one trainee's incorrect answers
• Time vs expected - time spent per level against the authored estimate
• Time vs score - time spent against points scored per level
• Cumulative score - score accumulating level by level
• Overall speed vs score - every run's total time against its score
• Level percentiles - a run's score and time ranked against others, per level
• Assists coverage - which hints and solutions a run opened
• Event timeline - chronological run events with commands plotted beneath
• Commands - console commands aggregated per level, searchable, with argument folding
• Command log - one run's commands in order, with host, source IP and working directory

Training analysis dashboard

• Replaced all instance organiser visualizations with a dedicated analysis dashboard
  • Aggregated view
    • Presents the instance as a whole, covering current trainee standing and providing basis for improving the training definition
    • Contains status tiles, progress, live event feed, scoreboard, players per level, score attainment, level difficulty, top wrong answers, time vs expected and commands
  • Trainee view
    • Presents a single selected run end to end, for monitoring or debriefing an individual trainee
    • Contains cumulative score, time vs score, trainee wrong answers, event timeline and command log
    • Runs are picked from a list carrying score, time, current level, hints, solutions and wrong answers
  • Assessment view
    • Presents the distribution of answers per question, allowing for question quality and difficulty analysis
    • Selecting an answer highlights every trainee who chose it
    • CSV export of the shown assessment, one row per trainee and question
• Selected view and trainee are held in the URL fragment, for sharing and bookmarking
• Removed now deprecated views: dashboard, quiz results, walkthrough, command timeline and command analysis

Trainee run summary

• Replaced the previous trainee run visualization with a new summary dashboard
  • Presents a completed run back to the trainee, covering how it concluded and how it stands against other runs on the instance
  • Contains feedback overview, overall speed vs score, level percentiles, scoreboard, assists coverage, cumulative score, time vs score and event timeline

Score export

• Reworked training instance score export, now broken down per level and splitting the assessment score from the training score
• Exports as CSV, replacing the previous plain text download
• Exports rank, login, name, mail, state, start and end time, duration, one column per scored level, training score, assessment score, total, hints taken, wrong answers and solutions displayed
• Levels a trainee never attempted export as a dash rather than a zero

Training definition editor

• Improved EMI question edit visuals
• Leaving Test mode restores each question's original required setting, instead of leaving every question forced to required

Topology

• Fixed crashes on multihomed VM nodes, which were emitted once per attached network and collided on duplicate identifiers
• Nodes whose operating system is not recognised no longer show a mismatched OS icon
• Internet node graphic is generated asynchronously, and failures are handled rather than breaking the graph

Sandbox

• Pool comments apply immediately and roll back if saving fails
• Pool comment length is capped
• Prompts before leaving pool edit with unsaved changes
• Creating a sandbox definition shows a loading state, and repeated Enter presses can no longer submit it twice

User and group

• Reworked microservice roles around a fixed default role, which every user of that microservice receives, cannot be deleted, and is always present so a microservice can never be left without one
• Adding a role moves focus straight into it
• Groups with no members or no roles say so, rather than showing an empty table
• Minor visual and behavioural improvements across user, group and microservice management, covering unsaved changes prompts and support for users without an email address

Navigation and home

• Home page hides agenda sections the user holds no role for, and shows a message if no agendas are accessible
• Users with access to a single agenda are taken directly to it instead of through the home page
• Fixed Design navigation offering Pool and Sandbox Images based on the wrong roles
• Navigating to an entity that does not exist redirects instead of failing

Internal

• New event query engine backing every chart, with events syncing into a local SQLite database in a web worker so charts query it instead of the network
• Sync tracks a watermark per instance and event type, so only new events are fetched
• Entity references on event rows resolve to full entities through a dedicated resolver
• Only one browser tab may own the local cache; other tabs are shown a blocked page and resume once it is freed
• Cached instances are evicted by age and total size on startup
• Cached batch fetch of entities by identifier resolves each id from a local cache and requests only the ones missing
• Cache lifetimes and maximum size are configurable, and polling periods are configured as duration strings
• Charts stop polling while the browser tab is hidden, and resume when it returns
• Route resolvers rewritten to fetch an entity once per navigation and share it across title and breadcrumb
• Unsaved changes tracking and its route guard extracted for reuse across agendas
• Pagination types moved from the Sentinel package into the shared utils library
• Replaced moment with date-fns for all duration handling
• Shared Vitest configuration adopted across every module, with a new test utilities library
• Theme gains spacing, font size and font weight token scales, and a card header style

🙌 Thanks to all contributors in this release:

• @mario-cshub

Full Changelog: v2.5.3...v3.1.0