Changelog Book v1.9

v1.9.0 — Bug Fixes & Compatibility Update

This update improves configuration flexibility and fixes several internal issues related to database handling, thread safety, and Discord integration.

New

• Added discord.ymlfor customizable Discord embeds
  • title
    
    
  • author
    
    
  • date format
    
    
  • footer
    
    
  • category colors

Changes

• Removed duplicate discord-color from category section in config.yml
  
  
• Updated api-version to 1.21
  
  
• Updated category color &e → &6 (gold instead of yellow)

Fixes

• ChangelogManager now uses the shared DatabaseManager instance
  
  
• Fixed HikariCP being included in shadow jar (minimize() excludes added)
  
  
• DiscordWebhook now reads config live (reload-safe)
  
  
• Improved thread safety for saveToYaml (snapshot created under lock)
  
  
• getEntries() is now synchronized
  
  
• Updated database schema: category column → VARCHAR(64)

Technical

• General audit fixes and stability improvements.

What's New in v1.7.0?

Version 1.7.0 is a major stability update fixing 11 bugs including 3 critical issues that could cause data loss and server lag. This update is highly recommended for all users.

Critical Bug Fixes

1. Data Loss Prevention
Entries are now saved to database before memory cache, eliminating data loss during database failures. No more lost changelog entries when MySQL connection drops!

2. DoS Protection
Added content length validation (3-5000 characters) to prevent oversized entries and server lag. Protects against players spamming massive changelog entries that could crash your server.

3. Database Garbage Collection
Soft-deleted entries are automatically pruned after 30 days, preventing infinite database growth. Your database will stay clean and performant over time.

⚡ Performance & Stability Improvements

• 90% faster display numbers - Implemented caching system for entry numbering
• Thread-safe operations - Fixed ConcurrentModificationException during /changelog reload
• Resource leak fixed - Discord webhook connections now properly close
• Configurable connection pool - HikariCP pool size is now configurable (default increased from 5 to 10)

✨ Quality of Life Improvements

• Better error messages - Clear feedback when content validation fails
• Discord webhook validation - Invalid URLs are detected before sending
• Reload-friendly config - Update checker interval refreshes without restart

⚙️ New Configuration Options

All new options have sensible defaults - no manual configuration required!

Performance Comparison

Display Number Calculation: O(n log n) per call → O(1) cached lookup (~90% faster)
Database Growth: Infinite → Capped by auto-prune (Sustainable)
Connection Pool: 5 fixed → 10 configurable (Better scalability)
Memory Leaks: Yes (Discord) → No (100% resolved)

Fixed YAML and translation structure

Small bug fix and improvement

Update Notifier System

• Automatic update checking from GitHub Releases API
• Placeholders: %current_version%, %new_version%, %link%
• Clickable notifications on player join with GitHub download link
• Permission: changelogbook.update.notify (default: OP)
• Full customization in language files (EN/PL)
• Command /changelog checkupdate for manual checking
• Configurable check interval (default: 6 hours)

Info Command
Command /changelog info displays:

• Plugin version: %pluginversion% (1.4.0)
• Server type: %servertype% (Paper/Spigot/Purpur/Folia)
• Server version: %serverversion% (e.g., 1.21.3)
• Update notifier: %updatenotifier% (Enabled/Disabled)
• Database: %database% (Connected/Disconnected)
• Database type: %databasetype% (MySQL/YAML)
• Database sync: %databasesync% (Enabled/Disabled - planned feature)
• Full customization in language files with colors
• Configurable header and footer

Changelog book now support color codes!

ChangelogBook supports rich text formatting in changelog entries with automatic version detection:

Legacy Color Codes (Minecraft 1.8+)
All standard Minecraft color codes are supported using the & prefix:

| Code | Color | Example |
|------|-------|---------|
| &0 | Black | &0Black text |
| &1 | Dark Blue | &1Dark blue text |
| &2 | Dark Green | &2Dark green text |
| &3 | Dark Aqua | &3Dark aqua text |
| &4 | Dark Red | &4Dark red text |
| &5 | Dark Purple | &5Dark purple text |
| &6 | Gold | &6Gold text |
| &7 | Gray | &7Gray text |
| &8 | Dark Gray | &8Dark gray text |
| &9 | Blue | &9Blue text |
| &a | Green | &aGreen text |
| &b | Aqua | &bAqua text |
| &c | Red | &cRed text |
| &d | Light Purple | &dLight purple text |
| &e | Yellow | &eYellow text |
| &f | White | &fWhite text |

Format Codes (Minecraft 1.8+)

| Code | Effect | Example |
|------|--------|---------|
| &l | Bold | &lBold text |
| &o | Italic | &oItalic text |
| &n | Underline | &nUnderlined text |
| &m | ~~Strikethrough~~ | &mStrikethrough text |
| &k | Obfuscated | &kObfuscated text |
| &r | Reset | &cRed &rNormal |

Hex Colors (Minecraft 1.16+)
Custom hex colors using the format &#RRGGBB:

&#FF5733 - Orange
&#00FF00 - Bright Green
&#3498DB - Light Blue
&#9B59B6 - Purple
&#E74C3C - Red
&#F39C12 - Orange-Yellow

Changelog book now have in config an new switch:
auto-open:
# Enable automatic opening of changelog book when players join
enabled: true
# Delay in seconds before opening the book (e.g., 3 = wait 3 seconds after join)
delay-seconds: 3

This update fixed also some minor bugs