Changelog

All notable changes to Scroll+ will be documented on this page.

0.9.0

July 4, 2026

Smarter PDF reading: batch extraction, scanned-PDF detection with automatic Academic Mode fallback, and higher extraction accuracy across languages.

Added

Batch PDF Extraction - Select multiple PDFs and extract them in one action; they queue up and process one after another in the background
Scanned-PDF Detection - Books with almost no extractable text are automatically switched to Academic (native PDF) mode so they stay readable, with a clear notice
Retro Notice Modal - A new design-consistent modal replaces native alerts for reading notices, matching the app's retro aesthetic

Changed

Stale Extraction Recovery - Books stuck in an extracting state after the app is killed now automatically re-enter the extraction queue
Language-Aware OCR Fixes - English-specific OCR corrections are now skipped for other languages and RTL scripts, preventing text corruption in German, French, Arabic and more
Crimson Pro Reading Font - The default reading font now renders correctly everywhere instead of falling back to the system font

Fixed

Rotated Text Size - PDF extraction now derives correct font sizes for rotated and skewed text
Dense Page Crash - Fixed a crash when extracting extremely dense PDF pages
Network Timeout Leak - API request timeouts are now always cleaned up, preventing resource leaks on failed connections

0.8.0

June 10, 2026

Design quality and performance update: SVG-based retro effects, haptic feedback, a smarter weekly chart, and light theme accessibility improvements.

Added

Haptic Feedback - Tactile responses for button presses, Nova gains, and level-ups
Logarithmic Weekly Chart - The weekly Nova chart is now an SVG line chart with logarithmic scaling; toggle between line and bar views

Changed

SVG Retro Effects - Scanline and dither overlays rebuilt as single SVG patterns, replacing hundreds of native views for a much smoother UI
Light Theme Contrast - Secondary text darkened to meet WCAG AA contrast standards
Compact Reading HUD - The in-reader menu is narrower and less intrusive

Removed

Debug Overhead - Removed leftover debug logging from visual components, reducing production overhead

0.7.0

June 2, 2026

Security hardening and stability update with 9 bug fixes and a more compact reading HUD.

Changed

Compact HUD Controls - Reading settings sliders redesigned in a compact layout, freeing up screen space while reading

Fixed

EPUB Content Security - EPUB HTML sanitization rebuilt on DOMPurify, closing injection vectors the previous sanitizer missed
Spin Wheel Reward Validation - Daily spin rewards are now validated server-side, preventing reward manipulation
Streak Multiplier Edge Case - The streak multiplier can no longer drop below 1.0x due to floating-point edge cases
Orphaned Quotes - Deleting a book now also removes its saved quotes
Network Timeouts - All API requests now time out after 15 seconds instead of loading forever on dead connections
Login State - Fixed stuck loading spinners after logging out and back in

0.6.0

May 15, 2026

Performance and security update: faster reading screen rendering, improved certificate security, and smoother leaderboard synchronization.

Changed

Reading Performance - Optimized the reading screen rendering pipeline for a faster, smoother experience
Certificate Security - Improved certificate handling for network connections
Leaderboard Sync - Smoother and more reliable synchronization of rankings and gamification data
Error Handling - Better error handling and recovery throughout the app

0.4.9

April 27, 2026

Major stability and data integrity update with 12 bug fixes across storage, gamification, PDF reading, and authentication.

Changed

Nova Formula Consolidation - All Nova math now lives in a single source of truth, eliminating drift between duplicate implementations

Fixed

Faster Library Storage - Book storage refactored to per-book records, making single-book updates instant even with large libraries
Nova Race Condition - Fixed close-together Nova updates overwriting each other
Avatar Reset Bug - Your selected avatar no longer resets when earning Nova within the same tier
PDF Position Memory - Academic Mode PDFs now reopen at your last page instead of page 1
Android SVG Crash - Fixed a crash caused by unsanitized icon path data on Android
Automatic Session Refresh - Expired sessions now refresh automatically instead of logging you out
RTL on First Launch - Arabic, Urdu and other RTL languages now display correctly from the very first launch

0.4.8

April 24, 2026

Critical fix for a daily spin wheel exploit that allowed bypassing the 24-hour cooldown by re-logging in.

Fixed

Spin Cooldown Bypass - The spin wheel now fails closed while server data is loading, closing the brief post-login window that allowed extra spins
Clear Cooldown Errors - The server now returns a specific cooldown error with the exact next-spin time, so the app can sync correctly
Phantom Rewards - Rewards shown for spins rejected by the server are now immediately reverted

0.4.7

March 29, 2026

Critical fix for Google Sign-In failing on Play Store builds after the Cloudflare migration.

Fixed

Google Sign-In Failure - Updated certificate pins for the new Cloudflare infrastructure; release builds were silently rejecting all API connections
Sign-In Error Visibility - Sign-in failures now show a clear error dialog instead of failing silently

0.4.6

March 29, 2026

Critical fix for PDF text extraction losing words and sentences at page boundaries.

Fixed

Page Boundary Text Loss - Sentences and words spanning across pages are no longer disconnected during extraction
Smart Page Joining - Pages ending mid-sentence now join with the next page naturally instead of forcing paragraph breaks
Hyphenated Words - Words hyphenated at page ends now connect properly to the next page
Spaced-Letter Text - Fixed legitimate spaced words being incorrectly merged together
Turkish Characters - Page boundary detection now fully covers Turkish characters

0.4.5

March 23, 2026

Bug fixes for reading time inflation and spin wheel cooldown bypass.

Fixed

Reading Time Double-Counting - Fixed daily reading time incorrectly increasing every time the app was reopened. The useLoadProfileData hook was loading sessions from AsyncStorage and dispatching addSession() on every app start, causing sessions to accumulate exponentially. The redundant hook has been removed
Spin Wheel Cooldown Bypass - Fixed the daily spin wheel allowing re-spin before the 24-hour cooldown expires. Backend claimSpinReward now returns nextSpinAvailableAt in all response paths. The client no longer uses a separate AsyncStorage fallback, relying solely on Redux. The error handler now fails closed instead of failing open

0.4.4

March 22, 2026

Critical bug fixes for PDF text extraction on physical devices, addressing stuck progress at 99% and empty extraction issues.

Fixed

PDF Extraction Stuck at 99% - Fixed extraction loop never completing if last page(s) had no content. The hasContent check was skipping the analysis phase, causing headingThreshold to never be set
Analysis Phase Logic - Moved analysis phase check before hasContent check to ensure headingThreshold is always set at page 15
Progress Updates - Progress now updates for ALL pages (including blank ones), not just pages with content
Academic Mode Bypass - Added pdfMode !== "academic" check in handleBookPress to prevent false "text is being prepared" alert
Scope Error - Fixed "completionSent is not defined" error by moving the variable to global scope
Debug Logging - Added extraction statistics logging to help diagnose issues on physical devices

0.4.3

March 22, 2026

Introducing PDF Academic Mode, a brand new reading experience for study and deep reading, alongside UI polishes and Eye Comfort refactoring.

Added

PDF Academic Mode - A completely new reading engine specifically built for PDFs
Native Pinch-to-Zoom - Enabled native browser CSS touch-action properties for flawless zooming in Academic PDF Mode
Multi-Color Highlights - Dynamic multi-color highlights applied via native document.execCommand
Highlight Deletion - Tap on existing highlights to invoke a deletion dialog
Minimalist UI - Overhauled the PDF Import Modal into a card-based design with full i18n support

Fixed

Eye Comfort Rendering - Replaced flat-color overlay with native CSS filters (sepia, contrast, brightness) bound to EYE_COMFORT_CONFIGS, retaining deep blacks in Dark Mode
Selection Menus - Fixed Y-coordinate miscalculations for text selection when header bar is hidden
Immersive Mode - Added one-tap global listener to seamlessly hide navigational HUDs

0.4.1

March 19, 2026

Internal refactoring, version bump, and bug fixes for app initialization and component hooks.

Changed

App Entry Point - Moved App.tsx from src/App.tsx to root directory, aligned with Expo convention
App Initialization - Added PersistGate wrapper, apiClient.init() before sync, verifyAppIntegrity() security check in production, and proper cleanup on unmount
Version - Bumped to 0.4.1 (versionCode 23)

Fixed

DailySpinWheel Hooks Order - Moved checkSpinAvailability function definition before its usage in useEffect
SyncService Test Import - Fixed apiClient import to use default export with correct mock structure

0.4.0

March 18, 2026

Major reading interface redesign with a new floating toolbar HUDMenu, removal of split-screen reader, and core gamification system introduction.

Added

Floating Toolbar HUDMenu - Complete redesign from bottom-sheet to a compact floating toolbar with 4 icon-based tabs (Typography, Spacing, Layout, Display)
Core Gamification System - User profiles, reading stats, Nova tracking, and weekly leaderboards
RetroSlider Compact Mode - New compact prop for smaller track (8px) and thumb (24px)

Changed

HUDMenu Animation - Replaced slide-up with fade+scale (200ms) for smoother appearance
HUDMenu Positioning - Now positioned below top bar via topBarHeight prop instead of fixed to bottom
ReaderScreen - Updated to integrate new HUDMenu with topBarHeight positioning
i18n - Renamed "level" to "threshold" in Turkish gamification locale

Removed

Split-Screen Reader - Removed SplitScreenReader component and split mode UI from ReaderTopBar

0.3.0

March 17, 2026

Critical fix for avatar assignment bug where users were displayed with incorrect high-tier mascots regardless of their actual Nova level.

Fixed

Avatar Assignment Bug - Fixed getAvatarIdForNova() in both frontend and backend. The thresholds array was sorted in descending order while MASCOT_AVATARS is sorted ascending, causing avatar IDs to map to wrong mascots
Database Correction - All 39 users' avatarId values were recalculated and corrected

0.2.9

March 16, 2026

Critical bug fix for avatar persistence across app sessions.

Fixed

Avatar Display Bug - Fixed an issue where the user's selected avatar would randomly change to an incorrect one on app launch. The updateUserProfile reducer now filters out undefined values from server responses, preventing them from overwriting existing avatar data

0.2.8

March 12, 2026

Split-screen PDF reading enhancements with sync mode and avatar ID system refinement.

Added

Split-Screen Sync Mode - New sync toggle button for synchronized scrolling between PDF viewer and extracted text
Page-to-Scroll Sync - PDF page changes automatically scroll the HTML reader to the corresponding position

Changed

Avatar ID Logic - Simplified to use sequential index (1-21) instead of Nova threshold values
Performance - Added React.memo and useCallback for split-screen optimization

Fixed

Android Rendering - Split mode now uses software layer type for WebView to prevent rendering issues

0.2.7

March 9, 2026

Floating tab bar improvements with tablet support and avatar ID system refinement.

Changed

Tablet Support - Floating tab bar adapts to screen size: centered with fixed width (280px) on tablets, full-width with padding on phones
Reduced Size - Tab bar height reduced from 65px to 50px, icon size from 32px to 24px
Avatar ID Logic - Reverted to use Nova threshold values for consistent avatar identification across sessions

Fixed

Avatar Selection - Avatar IDs now correctly use Nova threshold values ensuring avatar persistence after app restart

0.2.6

March 7, 2026

EPUB reader white flash fix during chapter transitions and React dependency warning resolution.

Fixed

EPUB Chapter Transitions - Eliminated white flash when navigating between chapters by rendering WebView off-screen until content is ready
React Warning - Fixed missing dependency in DailySpinWheel useEffect hook

0.2.5

March 6, 2026

Major reader interface overhaul with immersive reading mode, glassmorphism floating tab bar, deep linking for GDPR compliance, and critical gamification bug fixes.

Added

Immersive Reading Mode - Tab bar and header auto-hide on scroll, tap to toggle controls, status bar sync
Glassmorphism Floating Tab Bar - Native blur effects with expo-blur, modern design with rounded corners
Deep Linking - Account deletion callback for GDPR compliance, auto logout on account deletion

Changed

Real-Time Streak Multiplier - Nova display includes streak bonuses (1.0x - 2.5x)
Weekly Goal Bonus - Increased from 500 Nova to 10,000 Nova
Language Persistence - Saved language preference applied immediately on app launch

Fixed

Modal Flicker - Level-up modal no longer reappears after dismissal
Avatar Selection - Avatar IDs now use correct sequential numbers (1-21)
Double Spin Abuse - Daily spin wheel immediately saves timestamp to prevent multiple spins
Activity Tracking - Records activity on scroll start for all readers

0.2.4

March 5, 2026

Critical fix for Nova point calculation logic to prevent runaway scoring.

Fixed

Interval Leak Fix - Resolved a major bug in GamificationService.ts where multiple timers could accumulate, leading to exponentially high Nova points (e.g., 10k Nova for 2 minutes)

0.2.3

March 5, 2026

Nova calculation formula redesigned with time-based linear growth. Fixed a critical bug where scrolling incorrectly awarded Nova points.

Changed

Nova Calculation Redesign - Switched from page-based to time-based calculation: Old formula: (pages × 10) + (minutes × 5) + 20. New formula: Linear growth per minute (10, 20, 30... up to 300 Nova/min at 30 min). After 30 minutes: capped at 300 Nova per minute. Example: 30 min reading = 4,650 Nova (instead of unpredictable values)

Fixed

Scroll Nova Bug - Fixed incorrect Nova gains when scrolling through pages. Previously, each scroll position change triggered recordPageRead(), causing excessive Nova accumulation

Removed

Unused xpService.ts - Removed deprecated backend service file that was no longer in use

0.2.2

March 4, 2026

Focuses on synchronization stability, improved performance, and more accurate gamification tracking.

Added

Header Sync Button - A minimal, dedicated synchronization button in the header with a retro pixel spin animation

Changed

Weekly Nova Trend - The chart now pulls accurate daily data from the server, including Nova points earned from the Daily Spin

Fixed

Immediate Sync - Fixed a potential data loss issue; reading points are now synced immediately upon closing the book
Background Hydration - Improved Redux persistence to ensure local points are preserved until a successful server sync
Serialization Fix - Resolved 'Invalid request body' error by adding missing timestamps to synchronization payloads

0.2.1

March 4, 2026

Includes a fix for a bug related to the Nova gamification system and new UI improvements added to the Settings screen.

Added

Settings Screen Links - Added direct links to the official website (scroll.pics), Changelog page, and Delete Account page in the app's Settings menu

Fixed

Nova Sync Bug - Fixed a logic error where Nova points earned by users who left the app open and paused reading were rejected and deleted due to overly strict server-side anti-cheat rules

0.2.0

March 3, 2026

This release includes RTL language support, gamification enhancements, Android build improvements, and comprehensive security hardening.

Added

RTL Language Support - Full right-to-left text handling for Arabic, Persian, Urdu, Hebrew, and 6 more RTL languages
Daily Spin Wheel - 8 wheel segments with Nova rewards (100-5000), Streak Protector, and XP Booster
Level-Up Modal - New progression notifications with backend sync
API 35 Targeting - Updated to latest Android SDK with Kotlin 2.0.21
Security Hardening - 80+ automated security modifications, ProGuard dictionary, certificate pinning

Changed

EPUBReader loading improvements to prevent white flash
Updated all dependencies to latest versions

Fixed

Weekly Champions Widget errors resolved
Improved reliability for EPUB/PDF imports

0.1.3

February 25, 2026

Google Play Store preparation with critical bug fixes.

Added

Expo Secure Store Plugin - Configuration for secure token storage
Metro bundler improvements for development

Changed

Version bump: 0.1.2 → 0.1.3
Release notes condensed from 16KB to ~3KB

Fixed

Critical regex fix - Resolved stack overflow in PDF processing
Release signing configuration corrected for Google Play
Google Web Client ID migrated to config-based management

0.1.2

February 24, 2026

Major PDF reading improvements with split-screen viewer support.

Added

Split-Screen PDF Viewer - View original PDF and extracted text side-by-side with scroll sync
16-Phase OCR Pipeline - Advanced PDF text extraction with language detection
Age Verification System - Content gating with welcome modal
Native PDF rendering with react-native-pdf
Turkish-specific OCR error corrections

Changed

Enhanced profile management UI
Improved Google sign-in flow handling

Fixed

Multiple PDF text extraction accuracy improvements
Better handling of complex PDF layouts

0.1.1

February 22, 2026

Security hardening, responsive design system, and increased file limits.

Added

Responsive Design System - Breakpoints for phones, tablets with dynamic scaling
Network security config with certificate pinning
Multi-resolution splash screen logos

Changed

PDF file size limit: 25MB → 30MB
EPUB file size limit: explicit 50MB
15+ components updated for responsive behavior

Fixed

ZIP bomb protection for EPUB imports
Path traversal protection
Store listing titles updated to 30-character limit

0.1.0

February 11, 2026

Initial release with comprehensive e-reader features and retro RPG gamification.

Added

EPUB Support - Full EPUB 2.0/3.0 parsing with themes, fonts, and eye comfort mode
PDF Support - Lazy text extraction with markdown conversion
Gamification System - 21 avatar levels, daily spin wheel, streaks, leaderboards
Typography Controls - Font selection, size, line height, word spacing
Quote System - Capture, design, and share quotes from books
Retro UI - VT323 pixel font, CRT effects, glow animations
Google OAuth authentication
Library management with visual book grid
67+ language support with RTL handling

Version History

Version	Date	Focus
`0.9.0`	2026-07-04	Batch PDF extraction, scanned-PDF detection, Academic Mode fallback
`0.8.0`	2026-06-10	SVG retro effects, haptic feedback, logarithmic chart, light theme accessibility
`0.7.0`	2026-06-02	Security hardening, 9 bug fixes, compact reading HUD
`0.6.0`	2026-05-15	Reading performance, certificate security, leaderboard sync
`0.4.9`	2026-04-27	Stability and data integrity, 12 bug fixes, faster storage
`0.4.8`	2026-04-24	Spin wheel cooldown bypass fix
`0.4.7`	2026-03-29	Google Sign-In certificate fix
`0.4.6`	2026-03-29	PDF page boundary text loss fix
`0.4.5`	2026-03-23	Reading time double-counting fix, spin wheel cooldown fix
`0.4.4`	2026-03-22	PDF extraction stuck at 99%, progress tracking, Academic Mode alert fix
`0.4.3`	2026-03-22	Academic Mode Zoom, Multi-Color Highlights, Eye Comfort Filter Fixes
`0.4.1`	2026-03-19	App entry refactor, PersistGate, hooks order fix, test import fix
`0.4.0`	2026-03-18	Floating toolbar HUDMenu, gamification system, split-screen removal
`0.3.0`	2026-03-17	Avatar assignment bug fix, database correction
`0.2.9`	2026-03-16	Avatar persistence fix across sessions
`0.2.8`	2026-03-12	Split-screen sync mode, avatar ID refinement, performance
`0.2.7`	2026-03-09	Floating tab bar tablet support, reduced size, avatar ID fix
`0.2.6`	2026-03-07	EPUB chapter transitions, React warning fix
`0.2.5`	2026-03-06	Immersive mode, glassmorphism UI, deep linking, gamification fixes
`0.2.4`	2026-03-05	Interval leak fix, Nova calculation
`0.2.3`	2026-03-05	Nova formula redesign, scroll bug fix
`0.2.2`	2026-03-04	Sync button, weekly trend fix, hydration stability
`0.2.1`	2026-03-04	Settings links, Nova sync fix
`0.2.0`	2026-03-03	RTL support, API 35, security hardening
`0.1.3`	2026-02-25	Google Play preparation, regex fix
`0.1.2`	2026-02-24	Split-screen PDF, 16-phase OCR
`0.1.1`	2026-02-22	Responsive system, security
`0.1.0`	2026-02-11	Initial release