Product updates

The calculator-monitoring release now shows the correct release date and resets the private dashboard’s Today view to the administrator’s device-local day.

• Fixed: Correct the 1.9.1 release date to 22 September 2026 across public metadata and health responses.
• Fixed: Reset the Today preference migration so existing dashboards default to the device’s local calendar day instead of rolling over at midnight UTC.
• Improved: Show a neutral loading message while device-local totals are calculated, avoiding a misleading flash that says Today uses UTC.

• Open the private usage dashboard

Link to release 1.9.1h

The private operations dashboard now shows content-free calculator successes and broad failure outcomes without collecting student work.

• Added: Compare bounded success, failure, attempt, completion-rate, and successful-action-mix totals for the Unit Converter, Formula Lab, and Scientific Calculator.
• Added: Review daily calculator trends, fixed error-class breakdowns, and equal-window changes with explicit empty, pre-measurement, incomplete, and unavailable states.
• Privacy: Accept only fixed same-origin, CSRF-protected, empty-body outcome signals; expressions, values, results, units, formulas, messages, identifiers, and stack traces are never transmitted or retained.
• Accessibility: Provide semantic data tables for every calculator visualization and validate the private dashboard across mobile, zoom, keyboard, reduced-motion, light/dark, and JavaScript-disabled states.
• Improved: Keep measurement best effort so unavailable telemetry never delays, changes, or hides a calculator result, while documenting every expected cause of undercounting.

• Open Student Toolkit calculators

Link to release 1.9.1v

A physics-first Unit Converter, reviewed Formula Lab, and safe Scientific Calculator now share one accessible learning workspace.

• Added: Convert release-critical physics quantities bidirectionally with searchable units, transparent canonical working, controlled precision, examples, and shareable unit-pair links that exclude values.
• Added: Solve reviewed mechanics, waves, electricity, and geometry formula families for every supported variable while showing rearrangement, conversions, substitution, constraints, assumptions, and rounding.
• Added: Evaluate bounded scientific expressions with explicit DEG/RAD mode, keyboard and button entry, page-session memory, named constants, reviewed functions, and plain domain or syntax errors—without executable evaluation.
• Accessibility: Provide consistent keyboard-operable tabs, focused result cards, error summaries, responsive layouts, reduced-motion support, and useful JavaScript-disabled guidance.
• Privacy: Keep every entered value, unit, formula input, expression, working result, answer, and memory value local; retain only optional fixed aggregate completion categories in the existing private operations store.
• Documentation: Publish student guides for unit and dimensional reasoning, significant figures, calculator basics, and responsible formula use.

• Open Student Toolkit calculators
• Read the calculator guides

Link to release 1.9.0v

The authenticated private operations dashboard can now summarize scan outcomes for Today, the last 7 days, the last 30 days, or all recorded time.

• Added: Choose a bookmarkable outcome-summary window while keeping the daily chart, release comparison, failure trail, and product-activity tables on their own clearly labelled time periods.
• Improved: Update completed, partial, failed, total-attempt, completion-rate, and time-basis facts together from one normalized aggregate summary.
• Accessibility: Use a native labelled selector that works without JavaScript, remains usable at narrow widths and zoom, and announces enhanced device-time updates without moving focus.
• Privacy: Reuse existing content-free daily, hourly, and lifetime counters without adding visitor analytics, identifiers, uploaded content, or a new datastore.

• Review the methodology

Link to release 1.8.6v

Private, content-free operations analytics now survive service restarts and clearly identify the date when durable observation began.

• Added: Store aggregate scan outcomes in a dedicated persistent operations database instead of relying on process memory.
• Added: Provide an authenticated private usage dashboard with UTC totals, outcome trends, document-type counts, and release comparisons.
• Privacy: Retain only bounded operational counters and fixed labels; never store uploaded documents, filenames, extracted text, report contents, or user identifiers.
• Improved: Show the durable-history start date so pre-cutover ephemeral activity is not presented as comparable historical data.
• Improved: Expose operations-store readiness and write-failure monitoring without preventing scans when analytics storage is temporarily unavailable.

• Review the methodology

Link to release 1.8.5v