v12.00

• New parameter, @get_memory_info, that exposes memory grant information, both in two top-level scalar columns and a new XML-based memory_info column.
• Better handling of the newer CX* parallelism wait types that have been added post-2016
• A top-level implicit_transaction identifier, available in @get_transaction_info = 1 mode
• Added context_info and original_login_name to additional_info collection
• A number of small bug fixes
• Transition code to use spaces rather than tabs

New file name: Not an enhancement per se, but please note that starting with this release there is a new source file, sp_WhoIsActive.sql. The old file, who_is_active.sql, will be kept around for a few months and then removed. Please migrate any processes that might be using the old name.