Pandas 3.0 debuts str dtype and Copy-on-Write for dataframes

pandas 3.0 is now available, making the string data type the new default for string columns and bringing more predictable copy and view handling with Copy-on-Write. Datetime-like data now defaults to microsecond resolution, helping users avoid out-of-bounds errors associated with nanosecond defaults. The release also introduces support for the pd.col syntax and removes previously deprecated features.