.z.K (version)

The major version number, as a float, of the version of kdb+ being used. (A test version of 2.4t is reported as 2.4)

q).z.K
2.4
q).z.k
2006.10.30

.z.k (release date)

Date on which the version of kdb+ being used was released.

q).z.k
2006.10.30
q)

This value is checked against .Q.k as part of the startup to make sure that the executable and the version of q.k being used are compatible.