---------------------------
-What (Why):
- - xt_recent: the old ipt_recent proc dir
- (superseded by /proc/net/xt_recent)
-
-When: January 2009 or Linux 2.7.0, whichever comes first
-Why: Superseded by newer revisions or modules
-Who: Jan Engelhardt <jengelh@computergmbh.de>
-
----------------------------
-
What: GPIO autorequest on gpio_direction_{input,output}() in gpiolib
When: February 2010
Why: All callers should use explicit gpio_request()/gpio_free().
Who: Avi Kivity <avi@redhat.com>
----------------------------
+
+What: "acpi=ht" boot option
+When: 2.6.35
+Why: Useful in 2003, implementation is a hack.
+ Generally invoked by accident today.
+ Seen as doing more harm than good.
+Who: Len Brown <len.brown@intel.com>
+
+---------------------------
+
+What: xt_NOTRACK
+Files: net/netfilter/xt_NOTRACK.c
+When: April 2011
+Why: Superseded by xt_CT
+Who: Netfilter developer team <netfilter-devel@vger.kernel.org>