ggp related changes (1.9 - 1.12)?

[Claus Assmann]

So I'm a "bit behind" and recently updated to 1.12.1 (from 1.9.x)
Based on ChangeLog I added
unset pgp_use_gpg_agent
to my muttrc which at least gives me a prompt asking for the pass
phrase (I'm not sure why that is set by default if there is no gpgv2
on the system?).  However, I can no longer decrypt mails (using gpg
1.4.23)
"Could not decrypt ..."
What other things do I need to change to make this work again?  I
didn't see anything else that is relevant in ChangeLog, what am I
missing?
[I tried to update to 1.13.2 but there are too many merge conflicts
which will take some time to resolve :-(]

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