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-rw-r--r--doc/tools.texi2
1 files changed, 2 insertions, 0 deletions
diff --git a/doc/tools.texi b/doc/tools.texi
index bdef6a261..d05018b63 100644
--- a/doc/tools.texi
+++ b/doc/tools.texi
@@ -1160,6 +1160,8 @@ useful for unattended machines, where the usual @command{pinentry} tool
may not be used and the passphrases for the to be used keys are given at
machine startup.
+This program works with GnuPG 2 and later. GnuPG 1.x is not supported.
+
Passphrases set with this utility don't expire unless the
@option{--forget} option is used to explicitly clear them from the
cache --- or @command{gpg-agent} is either restarted or reloaded (by