Version 4.0 - 2025-11-29

Performance Optimizations

• Database Query Optimization: Implemented static caching for flatDB::readEntry() and flatDB::listEntry() to reduce redundant file system operations
• N+1 Query Fixes: Eliminated N+1 query problems in feed.php, view.php, search.php, and other core files
• Parser Optimization: Added static cache for Parser::title() and optimized Parser::content() and Parser::summary()
• Plugin System: Implemented static caching for plugin configurations and hook validations
• BBCode/BBlight Optimization: Added static cache for quote entries to prevent repeated database reads
• User Management: Implemented static cache for ban list with 60-second TTL
• Search Enhancement: Optimized search functionality with relevance scoring, result limiting, and content preview optimization

Library Improvements

• flatDB Library: Added static caching system with automatic invalidation (5-second TTL)
• Plugin Library: Added cache for hook validation checks
• HTMLForm Library: Added cache for description sanitization
• GlobalRequestLimiter: Fixed potential undefined variable error

RSS Feed Fixes

• Fixed RSS feed redirection issue - now returns valid Atom XML error feed instead of redirecting
• Improved date validation in feed generation
• Optimized topic caching in feed.php

Date Formatting

• Fixed date formatting issues with strftime codes
• Added convertStrftimeToDateTime() function for proper format code conversion
• Enhanced config.php with select dropdowns for date format presets
• Added "Custom" option with dynamic text input for date formats

Security Enhancements

• Ban System Overhaul:
[list]
• Replaced strpos() with ipInCidr() for accurate IP/CIDR range checking
• Added isValidIpOrCidr() for robust IP and CIDR validation (IPv4/IPv6)
• Improved ban list management with search, sort, and add functionality
• Added confirmation for ban removal
• Implemented static cache for ban list with automatic invalidation

[*] CSRF Protection: Enhanced CSRF token generation and validation
[*] Input Sanitization: Improved HTML sanitization in help descriptions with whitelist-based approach
[*] IP Validation: Enhanced IP address validation including CIDR support
[/list]

User Interface Improvements

• Added logout button to frontend header for all logged-in users
• Tags field now only displays if visible tags are configured
• Improved responsive design for various screen sizes
• Enhanced form validation and error display

Plugin Enhancements

• Identicon Plugin (v3.6.0):
[list]
• Added configurable options for status dot (online/offline) display
• Added configurable options for role badge (admin/moderator) display
• Improved caching for online status checks
• Enhanced role detection with optimized caching
• Fixed CSS positioning for status dots and badges

[*] Online Plugin:

• Implemented static caching for plugin data, hits, and authenticated users
• Optimized cleanup of inactive IPs and authenticated users
• Added configuration options for timeout and max_entries
• Enhanced modal to display authenticated users, visitors, and bots
• Improved IPv6 masking for privacy
• Added crawler detection with static caching

[*] FlatBBeditor Plugin:

• Fixed conflicts with TinyMCE editor in page plugin
• Added conditional loading to prevent conflicts
• Fixed undefined array key warnings in markdown editor
• Implemented static cache for plugin data

[*] Darkmode Plugin:

• Fixed Firefox crashing issues
• Added color format validation
• Improved error handling and initialization
• Added static caching for plugin configuration

[*] Page Plugin:

• Ensured TinyMCE editor doesn't conflict with FlatBBeditor
• Added proper content field handling
• Improved translation support

[/list]

Content Parsing Improvements

• Markdown Editor:
[list]
• Fixed HTML tag display issue in homepage summaries
• Added HTML-to-Markdown conversion for pre-existing HTML content
• Improved content parsing in Parser::content() and Parser::summary()

[*] BBCode Processing: Optimized quote processing with static caching
[/list]

JavaScript Enhancements

• Improved plugin activation/deactivation with better error handling
• Added comprehensive AJAX error handling with timeouts
• Enhanced UI feedback for user actions
• Fixed TypeError issues in flatboard.js

[h2]Bug Fixes[/h2]

• Fixed white page error in identicon plugin
• Fixed undefined array key warnings in multiple files
• Fixed date formatting display issues
• Fixed search functionality optimization
• Fixed tag display logic in forms
• Fixed various PHP warnings and notices

Code Quality

• Improved error handling throughout the application
• Added comprehensive logging for debugging
• Enhanced code documentation
• Improved code organization and structure

Previous Versions

Version 3.7.0 - 2025-02-08

• Initial release of optimized version
• Base functionality improvements