deb file keeps growing with each new release

[Hermanverschooten]

I have been using exrm_deb in combination with distillery for some time now.
I noticed that uploading my .deb file seems to take longer and longer every time, but I didn't take the time to look into this. But yesterday I deployed on a new server, and lo and behold, all my versions up to now are in the releases folder. So it seems that my deb file is now approaching 487Mb, because it includes all previous versions.

Is this by design?

-rw-rw-r-- 1 herman herman  57M feb  7 17:11 gwserver-2.0.0.deb
-rw-rw-r-- 1 herman herman  65M feb 28 09:57 gwserver-2.0.1.deb
-rw-rw-r-- 1 herman herman  93M feb 28 16:32 gwserver-2.0.2.deb
-rw-rw-r-- 1 herman herman 121M mrt  1 15:19 gwserver-2.0.3.deb
-rw-rw-r-- 1 herman herman 178M mrt  2 08:14 gwserver-2.0.4.deb
-rw-rw-r-- 1 herman herman 178M mrt  3 07:45 gwserver-2.0.5.deb
-rw-rw-r-- 1 herman herman 207M mrt  8 17:50 gwserver-2.0.6.deb
-rw-rw-r-- 1 herman herman 239M mrt  8 18:52 gwserver-2.0.7.deb
-rw-rw-r-- 1 herman herman 267M mrt  8 19:11 gwserver-2.1.0.deb
-rw-rw-r-- 1 herman herman 296M mrt  8 19:31 gwserver-2.1.1.deb
-rw-rw-r-- 1 herman herman 352M mrt  9 00:16 gwserver-2.1.2.deb
-rw-rw-r-- 1 herman herman 380M mrt  9 12:09 gwserver-2.1.3.deb
-rw-rw-r-- 1 herman herman 380M mrt  9 12:12 gwserver-2.1.4.deb
-rw-rw-r-- 1 herman herman 459M mrt 25 08:50 gwserver-2.1.5.deb
-rw-rw-r-- 1 herman herman 459M mrt 25 10:03 gwserver-2.1.6.deb
-rw-rw-r-- 1 herman herman 487M mrt 29 17:29 gwserver-2.1.7.deb