This adds a service bit to indicate that the node supports ACP (Automatic Checkpointing), if that service bit is not present then the CHECKPOINT messages are not sent to that node. This helps compatibility with alternative clients that do not support CHECKPOINT messages.
Service bit 24 was chosen as this is in the experimental bit range designated by Bitcoin so should not clash with any additional service bits put into production by Bitcoin.
This adds a service bit to indicate that the node supports ACP (Automatic Checkpointing), if that service bit is not present then the CHECKPOINT messages are not sent to that node. This helps compatibility with alternative clients that do not support CHECKPOINT messages.
Service bit 24 was chosen as this is in the experimental bit range designated by Bitcoin so should not clash with any additional service bits put into production by Bitcoin.