Changelog
Last updated
Stay up to date with the latest features, improvements, and bug fixes on PuzzledQuant.
August 2026
New Features
- Exercise Progress Tracking — Your progress on OCaml and C++ coding exercises is now tracked automatically. See solved, attempted, and seen-solution status on exercise list pages, with progress summaries on the Resources page and in your profile's Activity section.
- Progress Bars on Resource Cards — Course and exercise cards on the Resources page now show progress bars below the description, giving you a quick visual overview of your learning progress.
- C++ Programming Exercises — A new collection of 10 interactive C++ exercises covering systems programming, concurrency, and low-latency patterns relevant to HFT engineering. Includes unique pointer, lock-free SPSC queue, memory pool allocator, LRU cache, thread-safe singleton, custom vector, order book, ring buffer, and type-erasure patterns.
- 10 More C++ Exercises — The C++ collection now has 20 problems. The new ones cover shared pointer with weak references, small string optimization, intrusive linked lists, compile-time type lists, cache-friendly Eytzinger binary search, thread pools, reader-writer locks, market data conflation, feed sequence gap detection, and binary wire protocol decoding.
Improvements
- Redesigned Exercise Workspace — C++ and OCaml exercise pages are now a full-height workspace: the code editor fits the screen and scrolls internally instead of stretching to the length of the file, and the problem and code panes can be dragged to any split you like (your layout is remembered). A collapsible console at the bottom of the editor collects both Run output and Submit feedback in two tabs, the editor toolbar gained reset and copy actions plus ⌘/Ctrl+Enter to run, and narrow screens get a Problem/Code switcher instead of two cramped columns.
- Rebuilt Notifications — Notifications have been rebuilt end-to-end for a more reliable experience.
- Leaderboard Difficulty Badges — Leaderboard entries now display difficulty badges for quick reference.
- Compact Mobile Banners — Launch and premium announcement banners are now more compact on mobile, keeping the experience clean.
- Updated Pricing — Premium and newsletter pricing have been refreshed.
- Your Rank, Always Visible — Logged-in users now see their own leaderboard entry pinned at the top, so your rank is always in sight.
- Breadcrumbs in Resources & Games — Breadcrumb navigation is now consistent across all resource detail pages, games listing, and individual game pages, making it easy to navigate back from any resource or game.
- Centered Sign-In Prompts — Sign-in and premium access prompts on course, exercise, and curated-list pages are now better centered vertically on screen, with responsive positioning for both desktop and mobile.
Bug Fixes
- Fixed an issue where the forgot password link had inconsistent spacing.
- Fixed coupon pricing to correctly reflect the selected currency.
July 2026
New Features
- GitHub OAuth Sign-In — You can now sign in using your GitHub account.
- Last Used Login Hint — Returning users now see a hint showing their last used sign-in method.
Improvements
- Richer Welcome Email — The welcome email has been redesigned to be more professional and informative.
June 2026
New Features
- ChatGPT Integration — You can now solve problems and track progress directly through the ChatGPT app.
- Save & Reset Filters on Jobs — You can now save your job search filters or reset them to defaults.
Improvements
- Problem Attempt Feedback — Get randomized encouraging feedback when you submit answers.
May 2026
New Features
- Card Counting Game — A new card counting game has been added to sharpen your mental math skills.
- Dice Market Maker Game — Take on the role of a market maker in this new dice-based game.
Improvements
- User Profile Page — View and manage your profile, billing, and subscription details in one place.
- Pricing FAQ — An FAQ section has been added to the pricing page to answer common questions.
- Offer Badge — Promotional subscriptions now show an offer badge in your billing profile.
February 2026
Improvements
- Refined the navigation bar and launch banner UI for a cleaner experience.
December 2025
New Features
- C++ Interview Exercises — C++ coding exercises are now available for interview practice.
- Like & Dislike Comments — React to discussion comments with like and dislike buttons.
- Save Filters — Save your job search filters so you don't have to reconfigure them each visit.
- Company Logo Upload — Company logos can now be uploaded directly.
Improvements
- Newsletter Hover Card — Hover over the newsletter link in the navbar to preview the latest posts.
- Improved Job Filters — A revamped filter UI makes browsing quant jobs faster.
- Game Previews — Games now show a preview behind a blur overlay for better SEO and first-visit experience.
- Better SEO — Improved metadata, sitemap, accessibility labels, and semantic HTML across the site.
- Blur Overlays on Resources — Instead of redirecting away, resource pages now show a preview with a login/premium overlay.
Bug Fixes
- Fixed the sticky Status column in the problem table.
- Fixed the random logo slider component.
October 2025
Bug Fixes
- Fixed an issue where the "Pick One" random problem button would sometimes crash.
- Fixed a local storage issue that could cause unexpected behavior on page reload.
September 2025
Improvements
- Last Used Sign-In Label — Google sign-in now shows a "Last Used" label so you know which account you used previously.
August 2025
New Features
- Affiliate Program — Affiliate tracking is now live, with coupon codes that can be applied automatically via pricing URLs.
- Geographic Pricing — Pricing now adapts based on your country for a more localized experience.
July 2025
New Features
- Update Account Name — You can now change your account name from Account Settings.
- Reset Progress — Start fresh by resetting your problem and course progress (this action is irreversible).
- Account Image Edit — Upload or change your profile picture directly from Account Settings.
- Account Deactivation — You can now deactivate your account if you wish to leave the platform.
Improvements
- Account Settings Redesign — The account settings page has been redesigned for better usability.
- Datafast Payment Support — Additional payment method support for seamless checkout.
June 2025
New Features
- OCaml Exercises — Interactive OCaml coding exercises with syntax highlighting and a dedicated editor.
- Resumes Section — Browse and use professionally crafted quant resume templates.
- New Games — 80-in-8 and Arithmetic Mania games are now available.
- Curated Lists — Access hand-picked problem collections for focused preparation.
- Cheat Sheets — Quick reference sheets for key quant concepts.
Improvements
- Resources Revamp — The resources section has been completely redesigned with better organization and navigation.
- Jobs Section — Browse quant job listings with both premium and free tiers.
- Improved Toast Notifications — Smoother, more polished notification toasts throughout the app.
May 2025
New Features
- New Game Launch — A new quant game has been added to the platform.
December 2024
New Features
- Jobs Page — Browse quant job listings with premium filtering options.
- Improved Job Browsing — Better pagination and filtering for job listings.
July 2024
New Features
- Resources Section — A new Resources hub consolidating courses, curated lists, and exercises.
- Return & Cancellation Policy — Clear policies for subscription returns and cancellations.
June 2024
New Features
- Subscription Management — Manage your premium subscription, view billing history, and cancel directly from your account.
- Feature Request Link — Submit and vote on feature requests to shape the platform.
- Google One-Tap Login — Faster sign-in with Google's one-tap authentication.
- More Testimonials — Hear from more quants who have used PuzzledQuant to land roles.
May 2024
New Features
- Platform v2 Launch — A major redesign of the platform with improved navigation, layout, and overall experience.
- Feedback Link — Easily submit feedback directly from the site.
April 2024
New Features
- Return Policy — A clear return policy is now available on the site.
March 2024
New Features
- Notifications System — Stay updated with in-app notifications for your activity and progress.
January 2024
New Features
- Premium Questions — Access a curated set of premium quant problems.
- Smooth Animations — Subtle animations enhance the browsing experience across the site.
December 2023
New Features
- Jobs Listings — The first version of quant job listings is now live.
November 2023
New Features
- Question Feedback — Provide feedback on problem quality and difficulty.
- Answer Submission — Submit answers to problems and track your progress.
October 2023
New Features
- Pricing Page — View subscription plans and pricing details.
- Random Problem Button — Pick a random problem to solve with a single click.
- Social Sharing — Share problems directly to social media.
September 2023
New Features
- Report Feature — Report issues with problems or content directly from the problem page.
August 2023
New Features
- Dark Mode — Toggle between light and dark themes for comfortable viewing.
- Edit Comments — Edit your discussion comments after posting.
- Rich Text Editor — Format your comments with a new rich text editor.
June 2023
Improvements
- Increased the number of problems displayed per page from 15 to 25.
May 2023
New Features
- Discussions & Comments — Post discussions, comment on threads, and engage with the quant community.
- Nested Replies — Reply directly to comments for threaded conversations.
- Profanity Filter — Automatic filtering of inappropriate language in discussions.
- Email Verification — Secure your account with email-based verification during sign-up.
April 2023
New Features
- Filters & Search — Filter problems by topic and company, with multi-select support.
- Google Sign-In — Sign up and log in using your Google account.
- Bookmarks — Bookmark problems to revisit them later.
- Progress Tracking — Track which problems you've solved with status indicators.
- Random Problem Picker — Get a random unsolved problem to practice.
- Newsletter — Subscribe to the PuzzledQuant newsletter via Substack.
- Social Sharing — Share problems with your network on social media.
March 2023
New Features
- PuzzledQuant Launch — The initial release of PuzzledQuant with quant interview problems, topic and company tagging, and a clean, minimal interface.