diff --git a/ChangeLog b/ChangeLog
index 0c6c23f..c8db122 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -6,6 +6,7 @@ yapfaq 1.1.0 (unreleased)
   * Check for illegal headers and stop posting, if found.
   * Disabled projects must be posted, if forced.
   * Warn of unencoded 8bit characters in header or body if -d is set.
+  * Update POD.
 
 yapfaq 1.0.1 (2025-01-24)
   * Add %t placeholder for Message-ID (feature parity with 0.9).
diff --git a/bin/yapfaq.pl b/bin/yapfaq.pl
index f7af3f7..3c018d1 100755
--- a/bin/yapfaq.pl
+++ b/bin/yapfaq.pl
@@ -761,7 +761,14 @@ files need to be in B<datadir>.
 Needs to have at least I<From:>, I<Subject:> and I<Newsgroups:> and
 can contain all other headers that the posting should have. Headers
 must conform to RFC 5536 and RFC 5322 and use MIME encoded words for
-8bit characters. B<yapfaq> won't convert headers.
+8bit characters. B<yapfaq> won't convert headers, but will warn of
+unencoded 8bit characters in B<--debug> mode. Longer headers should
+be folded; B<yapfaq> won't fold headers.
+
+The headers file must not contain any of the following headers:
+I<Date:>, I<User-Agent:>, I<X-Newsreader:>, I<X-Mailer:>,
+I<Injection-Date:>, I<Injection-Info:>, I<NNTP-Posting-Date:>,
+I<NNTP-Posting-Host:> or I<X-Trace:>.
 
 I<Subject:> may contain a I<%LM> placeholder that will be replaced
 with the I<Last-modified:> pseudo-header from the text file
@@ -823,7 +830,8 @@ I<Last-modified:> and I<Posting-frequency> will be evaluated by
 B<yapfaq>.
 
 If your content contains 8bit characters, you'll need suitable MIME
-headers in your headers file.
+headers in your headers file.  B<yapfaq> will warn of unencoded 8bit
+characters with missung MIME headers in B<--debug> mode.
 
 B<Example text file with pseudo-headers>