BIO_flush(sbio);
BIO_free_all(sbio);
-=head1 BUGS
+=head1 HISTORY
-In OpenSSL versions before 1.0.0 the BIO_pop() call was handled incorrectly,
+In OpenSSL before 1.0.0 the BIO_pop() call was handled incorrectly,
the I/O BIO reference count was incorrectly incremented (instead of
decremented) and dissociated with the SSL BIO even if the SSL BIO was not
explicitly being popped (e.g. a pop higher up the chain). Applications which