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-rw-r--r--src/README.UPDATING8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/README.UPDATING b/src/README.UPDATING
index 5b6bea869..0d729a384 100644
--- a/src/README.UPDATING
+++ b/src/README.UPDATING
@@ -69,6 +69,14 @@ Exim version 4.78
attribute as a comma-separated list. Note the distinction from multiple
attributes being returned, where each one is a name=value pair.
+ * accept_8bitmime now defaults on, which is not RFC compliant but is better
+ suited to today's Internet. See http://cr.yp.to/smtp/8bitmime.html for a
+ sane rationale. Those who wish to be strictly RFC compliant, or know that
+ they need to talk to servers that are not 8-bit-clean, now need to take
+ explicit configuration action to default this option off. This is not a
+ new option, you can safely force it off before upgrading, to decouple
+ configuration changes from the binary upgrade while remaining RFC compliant.
+
Exim version 4.77
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