Older version of realtime-bidding-proto.txt

[po...@adelphic.com]

Hi,

We are using a fairly old version of realtime-bidding-proto.txt and would like to upgrade to an intermediate version as upgrading to the latest one may create an issue for us.

I found release notes : https://developers.google.com/authorized-buyers/rtb/relnotes, but do not see a way to download an older version of realtime-bidding-proto.txt.

Can I get a help?

Thanks,

Pooja