Bukkit

TESTED AGAINST LATEST: CB 1.2.5-R1.3 (couldn't just find it in list Game version)

• Fixed Paintings. Paintings are now protected by CAC.
  
• Fixed so pistons cannot be used to push blocks into a protected chunk or withdrawing blocks from a protected chunk. For it to be allowed, both chunkowners MUST be equal OR the TARGET chunk must be unprotected.
  
• Added /walktest command. Read description of what it does.
  
• Fixed worldedit incompatibility by changing /remove into /del
  
• Fixed FATAL bug in command handling that could result in corrupted config.yml when supplying commands with invalid arguments.
  
• Fixed bug in initial playerjoin message that annouced wrong value if the claimblocks value in config was changed.
  
• Fixed numerious small bugs.
  
• All CAC messages related to a specific chunk now tells the coordinates of the chunk for easier debugging in case of problems.
  
• Changed so OP status gives you automatically right to build everywhere despite of claims owner. Use /walktest if you want to avoid touching protected areas.
  
• Shorted most of CAC's messages so they only take up one single line.
  
• Tested against CB 1.2.5-R1.3 and verifyed it works correctly.
  
• Fixed misspelling of the usage of the /remove or /del command in plugin.yml

SOURCE: http://chunkautoclaimer.sebbe.biz/cac/ChunkAutoClaimer-v1.1_source.java
PLUGIN.YML: http://chunkautoclaimer.sebbe.biz/cac/plugin_v1.1.yml

A player can claim 3 claims like this:
+ + +
and then unclaim the middle:
+ X +
resulting in 2 separate claims with requiretouch true in the config.