Product Changelog

Release notes

A complete record of every meaningful change shipped in Weila, organized by release. Each entry includes the version number, release date, a written overview of what changed and why, and a detailed breakdown of new features, improvements and fixes.

Version 1.4

Smarter Study Flow

Released April 2026

Version 1.4 is the largest release we have shipped since launch and focuses almost entirely on the moment-to-moment experience of a study session. We rebuilt the live leaderboard from the ground up, retuned the Focus Score model against three months of session data, and made deck generation faster and more accurate across every supported subject. We also tightened how progress is visualized so that students can read their performance at a glance without having to open analytics.

New features

Three features are new in this release. Each one was prioritized after direct feedback from students using Weila for finals, AP exams and university coursework.

Real-time leaderboard. A live ranking of every student studying right now, ordered by XP earned today and weekly consistency. The leaderboard updates as sessions complete and supports filtering by school, country and friend group.
Session replay. After any focus session you can scrub through a minute-by-minute timeline showing your focus score, breaks, and the deck or document you were working on at each point.
Shared decks. You can now share any deck through a public link. Recipients can preview the deck and clone it into their own library with a single click without needing an account.

Improvements

Several core systems were retuned for accuracy and speed. None of these change how Weila works conceptually, but together they make the product feel noticeably tighter.

Focus Score precision. The scoring model now weights long uninterrupted blocks more heavily than short bursts and penalizes tab switching less aggressively when a tab is on an approved reference.
Deck creation pacing. Generating cards from notes is roughly forty percent faster on average and produces fewer duplicates on dense source material.
Reader mode typography. Line length, leading and paragraph spacing in the in-app reader were rebalanced to reduce eye fatigue during long sessions.
Mobile gestures. Swipe-to-rate on flashcards now respects partial swipes and gives haptic feedback at the commitment threshold.

Fixes

A short list of bugs reported by users that were resolved this cycle.

Resolved a case where the session timer would drift by up to two seconds per hour on certain Android devices.
Fixed deck import from Anki packages that contained media files larger than ten megabytes.
Corrected an off-by-one error in weekly streak calculation that occasionally cost users a day of streak history.

Version 1.3

Structures and Study Techniques

Released March 2026

Version 1.3 introduced built-in study structures, which is the foundation we have been building toward since launch. Rather than asking students to design their own study plans, Weila now ships with proven techniques like Focus Sprints, the Feynman method, active recall cycles and interleaved practice. Each structure is implemented as a guided flow that sets up timers, prompts and review schedules automatically so students can spend their effort on the material instead of on planning the session.

New features

Built-in study structures. Pick from Focus Sprints, Feynman walkthroughs, active recall cycles and interleaved practice. Weila runs the structure for you, including timers, prompts and review queuing.
Streaks 2.0. The streak system was rewritten with weekly recovery, so a single missed day no longer destroys long streaks. A streak freeze is automatically granted every fourteen days of consistent study.
Custom session goals. Set a target focus score, duration or card count before starting a session and Weila will show progress against that goal in the session HUD.

Improvements

Onboarding now asks two fewer questions and uses the answers to preselect a recommended study structure on day one.
The dashboard week view was redesigned to show focus quality alongside time, making it easier to spot productive versus unproductive patterns.
Notification copy across the product was rewritten to feel more like a study partner and less like a productivity coach.

Fixes

Resolved rare cases where decks would fail to sync after switching between cellular and wifi networks mid session.
Fixed a regression that caused the Pomodoro timer to skip the long break after the fourth interval on certain browser versions.
Patched a layout bug on iPad portrait orientation where the deck list would clip the last two rows.

Version 1.2

AI You Actually Trust

Released February 2026

Version 1.2 was a quality release focused on the AI features that generate cards, summaries and practice questions. We spent the month before this release rebuilding the prompt and evaluation pipeline so that generated content favors retrieval practice over passive recognition by default. We also added the first version of retention analytics so students can see, at a deck and topic level, how their long-term memory of the material is actually trending over time.

New features

Spaced retrieval analytics. View retention curves per deck and per topic with a recommendation for which material needs review next. The chart updates after every review session.
Question style toggle. Each deck can be set to favor recall, recognition, application or a balanced mix. The setting changes how new cards are generated and how existing cards are presented during review.
Source citations. Cards generated from uploaded notes or PDFs now link back to the exact passage they were derived from for quick verification.

Improvements

Card generation quality was retuned across mathematics, biology, history and language subjects based on graded samples from beta users.
Summaries generated from long documents now preserve numerical data and named entities more reliably.
The review session UI was simplified to reduce the number of choices presented at each card from four to three.

Version 1.1

Stability and Polish

Released January 2026

Version 1.1 followed the public launch by a few weeks and was dedicated almost entirely to stability work, performance improvements and the long tail of small fixes that surface only when thousands of students start using a product at the same time. Nothing in this release is glamorous on its own, but together these changes brought crash rates down by an order of magnitude and made cold start times feel instant on most devices.

Improvements

Cold start time on the web app was reduced from roughly two seconds to under four hundred milliseconds on a typical broadband connection.
Memory usage during long study sessions was cut by approximately thirty percent through a rewrite of the card rendering pipeline.
Sign in with Google and sign in with Apple now persist sessions correctly across browser restarts.

Fixes

Resolved a critical bug where, in rare cases, completed reviews would not be recorded against the spaced repetition schedule.
Fixed Safari rendering issues that caused certain flashcard animations to stutter on older devices.
Corrected timezone handling in the daily summary email so that midnight is now correctly interpreted as the user's local midnight rather than UTC.

Version 1.0

Public Launch

Released January 2026

Version 1.0 marked the public launch of Weila after nine months of closed beta testing with students from over two hundred high schools and universities. The 1.0 release included the foundational features that define the product today: focus tracking with the Focus Score, spaced repetition flashcards with AI-assisted generation, study session timers, deck and folder organization, and the basic dashboard for reviewing progress over time. Everything that has shipped since this release builds on the architecture established here.

Initial release

Focus tracking with the Focus Score, calculated from session duration, interruption frequency and pattern consistency across the day.
Spaced repetition flashcards based on a modified SM-2 algorithm with adjustments for student schedules and exam-driven cramming periods.
AI-assisted card generation from notes, slides and PDFs with optional manual editing before cards enter the review queue.
Dashboard with daily, weekly and monthly views of focus time, sessions completed, cards reviewed and current streak.
Deck and folder organization including drag and drop, color coding and shared color tags across folders.

Looking for older releases or detailed migration notes? Reach out to the team and we will share the full internal change history.

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