Transparency property for drawing lines

Hello Wagner
several Weeks ago, I asked for a possibilty to see the transparent property functionning with DiagramLines...I have got the following answer from you:
Transparency property is not being taken into account for drawing lines. We made an improvement and the fix will be included in next version.
Please, it is vital for me to know if this feature will indeed be fixed in the next version, and when do you expect version to be lanched?

Thank you in advance