October 2026

White Room for Ultra Premium: lessons, practice interviews, and one room for every chat

White Room

New Lessons in White Room: say "teach me" and a topic, answer a few quick questions, then follow a plan with a check after each step.
New One room for your goal, with every chat in a list you can open and pick up where you left off.
New Practice system design interviews in White Room, with an interviewer who asks about what your design is missing.
New Notes for each chat: a short record of what you worked on and asked, which you can edit, download, or print.
New Ask the coach for a practice problem and it opens in Mindsolve, right from the chat.

September 2026

Daily games, multi-part problems, and a memory that ranks your skills

White Room

Fixed White Room paints the workspace on the first frame on a phone instead of a blank strip.
Improved Memory shows a rank for every skill you practise, from Initiate to Master, with the evidence behind it, shared between White Room and DSA practice.
Improved The White Room About page is now a live tour of the workspace instead of a wall of screenshots.

Roadmap & Practice

New CPguessr: a daily game where you read a Codeforces problem and guess its rating, scored by how close you land.
New AI-dle: a daily game in the quest drawer where you work out which AI model is behind a set of benchmark scores.
New Contest calendar: upcoming rounds from the major judges in one list, with a feed you can add to your own calendar.
Improved Collections are now personal: your own lists, plus any list you were already working through.
Fixed CPguessr is back after a stretch without a daily puzzle, with puzzles now prepared well ahead.

Problems & Editor

Improved Catalog rows are half the height, so you see fifteen problems at a time instead of six.
Improved Success rate colour is tuned to this catalog rather than to LeetCode, so green means a problem most people finish.
Improved Company tags read differently from topic tags at a glance.
New Multi-part problems: some problems are split into Parts, and a submission that already solves later Parts credits them too.
New Return Routing Engine: a debugging problem modelled on an Amazon online assessment, with an assistant that explains without handing over the fix.
Improved A cleaner problem page: one chip style, a compact editor toolbar, and an orange Submit button.
Fixed Run and Submit no longer ask a signed-in user to sign in again after a short idle.

Resume Reviewer

New Saved resume reviews keep a preview of the PDF you uploaded.

Guides

Improved Guides moved into a library layout with clearer sections.
New Ask the White Room coach about any passage in a guide.

Membership

New DSA Premium: adaptive practice, solve history, weak topics, judge sync, and unlimited resume reviews for $9 a month or $79 a year.
Improved The top plan is now Ultra Premium, and each plan card leads with its standout feature.

Profile & Community

Improved The jobs page now links straight to five curated job boards.

Platform

New Twelve new wallpapers from the Omarchy themes, with the picker capped until you ask for more.
Fixed The homepage showcase no longer sits behind a black rectangle when the page loads in a background tab.
New Hako, the WhiteBox mascot, drops by now and then with a shortcut into White Room. Switch her off in Settings.

August 2026

A rebuilt coach workspace and a platform-wide reliability pass

White Room

New Coach memory you can read and edit: a browsable document tree, a history of every consolidation run, and controls for what the coach keeps.
New Slash commands in the composer: /memory shows what the coach knows, plus /today, /roadmap, and /stats.
New The rooms rail slides out when you reach the left edge, so the workspace keeps its width while you work.
Improved Rebuilt chat: full-width coach replies, a New chat button, and finished turns that collapse to a single line.
Improved Today shows less and says more, with the day plan and coach actions trimmed to what you act on.
Improved Settings moved into one place, with coach behavior, memory, and workspace preferences that persist across devices.

Roadmap & Practice

Fixed Rerolling a daily quest can no longer reopen one you already completed.

Problems & Editor

Fixed Saving a problem no longer discards test cases you did not edit.
Fixed Running code, saving notebooks, and unlocking test cases keep working after a long idle instead of asking you to sign in again.
Fixed The submit banner reports the XP you actually earned.

Rewards & Cosmetics

Fixed The daily fortune is one claim a day for everyone, on one shared reset.

Membership

Fixed Gifted premium days add up correctly when several arrive at once.

Platform

New Dust Gray theme, a neutral palette that keeps colour for status rather than decoration.
Improved Navigation menus, progress rings, and settings share one set of sizes, icons, and alignment.
Fixed No more background flash on load when you are on a newer theme or wallpaper.

July 2026

Collections, the Dan Ladder, and a shared White Room

White Room

New Shared free preview room so anyone can see the coach in action before subscribing.
New AtCoder and oj.uz problem sources, with one focused practice platform per plan so judges never mix.
Improved Coaching questions now run on a dedicated turn tier for sharper answers at lower cost.

Roadmap & Practice

New Problem collections: build favorites, redo, and review lists with a progress tracking table.
New Verified Dan Ladder: ten dans of curated AtCoder problems, link your account to earn the rank on your profile.
New Import problems by URL from CSES, AtCoder, Codeforces, and USACO straight into your collections.
New Osu-style difficulty range slider to filter the roadmap and catalog to an exact rating band.
New Personalized daily quests tuned to your level, plus a new quest to redo the quiz questions you missed.
Improved New members now land straight on the algorithm roadmap with a day-one mission card.
Improved Roadmap progress orb and problem counts now follow your active filters.

Problems & Editor

New Custom assertion harnesses: one-click templates, per-assertion pass and fail reporting, and spend coins to reveal what a failed assertion checks.

Mock Interview & Intel

New Animated mock interview demo on the landing page.

Resume Reviewer

Improved Recalibrated scoring that credits the evidence you show instead of penalizing missing credentials, and reads a top-tier offer as a world-class signal.

Domain Knowledge

New New domain knowledge question sets covering math and recent machine learning interview intel.

Rewards & Cosmetics

New Blackjack table: bet your coins against a server-dealt shoe.
New Global sound system with a volume setting plus solve, quiz, and reward cues.
New Theme-integrated rarity tokens and a vault-terminal box opening animation.
Improved Referral premium-day rewards now surface across the invite screen, the shareable card, and its preview image.

Profile & Community

New Linked-account badges on your profile that consolidate your external competitive accounts.

Platform

Improved Faster profile and problem pages from leaner database hot paths.
Fixed Sandbox judge failures reliably fall back to Judge0 with no raw error leaks.

June 2026

White Room goes public

White Room

New White Room opened to every signed-in user, with a premium access boundary.
New Structured onboarding wizard grounds your very first plan in real goals.
New Projects tab: personalized project recommendations with mini schedules.
New Async background plan builds: get an instant room and resume when it is ready.
Improved Native web search with citations on direct questions, plus learner-memory dedup so the coach stops repeating itself.

Roadmap & Practice

New Level-ordered list view for the algorithm roadmap.

Problems & Editor

New Vercel Sandbox execution provider for problem runs, with address sanitizer support and warm sandbox reuse for faster submissions.
Improved Syntax-highlighted submitted and solution code.

Mock Interview & Intel

New Animated product tour showcase on the homepage.

Resume Reviewer

New Private-by-default reports with revocable share links and delete.
Improved Recalibrated scoring with percentile bands and a breadth blend, shown on an interactive score curve.

Guides

New Guides section: consolidated, rewritten, and published, with a right-rail table of contents and scroll-spy.
New In-product admin markdown editor with author bylines, descriptive slugs, and draft mode.

Rewards & Cosmetics

New Reward popups for every XP source, with coins you can spend in the shop.

Membership

New Five-day premium trial with card-reuse abuse prevention.
New Native cancel and reactivate flow with a monthly and annual billing toggle.

Profile & Community

New Account settings to change your email and password.
New Following page with mutuals, and AtCoder account linking from settings.

Platform

Fixed Connection-pool starvation that slowed the whole site under load.
New Baseline security response headers.

May 2026

The AI coach takes shape

White Room

New AI coaching workspace: an adaptive roadmap you build together with the coach.
New Infinite hex-grid roadmap with day-structured plans.
New Session artifacts and durable learner memory.
New Context sources: feed the coach your linked profiles and files.

Roadmap & Practice

New Library: a curated hub of the best DSA and system design resources.

Mock Interview & Intel

New Rebuilt mock interview suite: structured rounds with transcription.
New Candidate rating radar with hoverable scores.
New Job board search.

Rewards & Cosmetics

New Referral system: a five-tier ladder with gacha gift boxes.

Profile & Community

New Ranking v2 and profile progression.
Improved Leaderboard stats redesigned into stat cards, plus contributor cards on the community page.

Platform

Improved Migrated every LLM call from Anthropic to OpenAI.

April 2026

WhiteBox launches

Roadmap & Practice

New DSA algorithms roadmap with an admin editor.
New FAANG vs Cracked roadmap tier toggle.
New "Plan with AI" button on the algorithm roadmap.
New Workbooks: your first custom problem lists.
New Per-problem discussion threads.

Problems & Editor

New Coding problems, a code editor, and Judge0 execution.
New Multi-language support with dynamic per-language harnesses, including C++20 and C++23.
New Tsuki: the in-editor AI problem assistant, with a Monaco editor and inline diff highlights.
New Custom test cases with an execute button.
New ZIP file test-case uploads and batched Judge0 submissions.
New Vim mode, per-problem time and memory limits, and more languages.
New Submission speed histogram.
New LeetCode catalog and an auto-save queue.
New Submission rate limiter.

Mock Interview & Intel

New Structured mock interviews with multiple round types and speech recording.
New System design whiteboard for architecture rounds.
New Interview question buckets.
New Interview Intel: a feed of real interview reports with a review pipeline and a contribute flow.
New Our Philosophy manifesto page.

Resume Reviewer

New AI resume reviewer, with shareable report URLs and a free tier.
New Percentile ranking against the pool with seven recruiter signals, plus an admin panel with one-click backfill.

Domain Knowledge

New Domain knowledge quizzes, with mass upload and AI drafting modes for authoring.

Rewards & Cosmetics

New Loot boxes, avatar frames, and a cosmetics shop with an editor for animated titles.

Membership

New Stripe payments, coupons, and bulk premium gifting.

Profile & Community

New Profiles with the hexagon power graph, PP scoring, and a leaderboard.
New Community pages, contributors, and public profile routes.
New Growth dashboard for admins, first-solve bonuses, and a solvers tab.

Platform

New Clerk authentication, an admin panel, and separate production and dev environments.
New Job board, notifications, and direct messages.
New Granular permissions system and search-engine optimization across the site.