The latest version of Spring Data Aerospike, 5.0.0, introduces several exciting new features and improvements, including the support for transactions, byte array equality queries, and more querying keywords. Transactions allow grouping multiple Aerospike operation requests into a single atomic and isolated transaction, ensuring that either all commands succeed together or fail, resulting in rollback of records involved. Byte array equality queries compare two-byte arrays to determine if they contain the same data, while supporting cacheable sync option enhances efficiency by avoiding redundant operations. The `existsBy`, `countBy`, and `deleteBy` keywords simplify common database operations. These features are available through declarative transaction management, byte array equality queries, and more querying keywords.