This version of prison works with Spigot v1.20.6 and Paper v1.20.6.

The whole prison build environment was rewrote and updated to provide for a cleaner and more modern way to use dependencies within Gradle.

In combination with updating most of the libraries and other dependencies, this resolved many issues that were initially preventing prison from working with Spigot v1.20.5 and v1.20.6.

• Gradle updates: Upgraded from v7.3.3 to v8.7. Had to upgrade 22 times to reach v8.7. With gradle, if there is a future breaking change in the configs, it warns you in the before the next release. So incremental upgrading helps ensure the configs are fixed and functional before moving on to the next release.
  
  
• Upgraded Spiget from v1.4.2 to 1.4.6. This checks prison's version for updates.
  Had to also rewrite the code using Spiget because the older build tools were having issues handling anonymous classes when building the final jar file with shadow.
  
  
• Upgraded shadow from v6.10 to v8.1.1 2
  Shadow v8.x could only be used with gradle v8.x
  
  
• Placeholders: There was an odd issue with placeholders when a discord plugin was using papi. For some reason, that plugin was sending the placeholders with null players. Now checks for nulls. Since it was a non-standard way of using papi, there may be other issues?
  
  
• PlayerCache: Slight modification in getting the keySet so it will not be tied to the original PlayerCache's TreeMap. This will eliminate the possibilities of a concurrent modification exception if new players are brought online or unloaded.
  
  
• Economies: Added a feature for external functions to be able to check if the player has an account. It's not being used yet, but it can be used to bypass code (and messages) if a player does not have an account.