fsync. Valid values range from 0 to 2^32-1, and defaults to 250,000 (1/4 of
a second).
.PP
-Please note that as delayed-ack is currently experimental, the delayed-ack
-feature is not compiled in by default, but must be enabled at compile time
-with \'./configure --enable-delayed-ack\'.
+The delayed-ack feature is not compiled in by default, but must be enabled
+at compile time with \'./configure --enable-delayed-ack\'. While we no
+longer consider it experimental and we don't know of any issues with it,
+in order to minimize problems with existing configuration files we have
+left it disabled by default.
.RE
.PP
The