RELNOTES: Mention nolocaltimewait change

concussious · concussious · commit 131b3b575170 · 2025-08-18T13:28:23.000-04:00
Fixes: c3fc0db (tcp: set net.inet.tcp.nolocaltimewait to 0) Co-Authored-By: Michael Tuexen <tuexen@FreeBSD.org> Differential Revision: https://reviews.freebsd.org/D51161
diff --git a/RELNOTES b/RELNOTES
@@ -85,6 +85,16 @@ f1f230439fa4:
 	and obj NFSv4 mounted, the total RPC count dropped from
 	5461286 to 945643, with a 20% drop in elapsed time.
 
+c3fc0db3bc50
+	The default value of the sysctl variable
+	net.inet.tcp.nolocaltimewait has changed from 1 to 0. This means
+	that FreeBSD does not skip the TIME_WAIT state anymore for
+	endpoints for which the remote address is local. The new sysctl
+	variable net.inet.tcp.msl_local can be used to control the time
+	these endpoints stay in the TIME_WAIT state. The sysctl variable
+	net.inet.tcp.nolocaltimewait is deprecated and intended to be
+	removed in FreeBSD 16.
+
 cd240957d7ba
 	Making a connection to INADDR_ANY (i.e., using INADDR_ANY as an alias
 	for localhost) is now disabled by default.  This functionality can be
