Clarification on aC++ compiler version numbers

[roobala]

Hi all,

We are in the process of buying new aC++ compiler for one of our system, when we check in the compatability matrix, most of the places the version is written like

vuf: B.11.01.06,
what: a.03.13

for the same version of the compiler , these 2 types are mentioned.

What exactly it means, how do I understand this B.11.01.06 and a.03.13,

can someone guide me???

below is the URL for the above said matrix.

http://h21007.www2.hp.com/dspp/tech/tech_TechDocumentDetailPage_IDX/1,1701,1738,00.html

thanks in advance,