Index: head/sysutils/tmux/Makefile
===================================================================
--- head/sysutils/tmux/Makefile	(revision 504861)
+++ head/sysutils/tmux/Makefile	(revision 504862)
@@ -1,70 +1,69 @@
 # Created by: Wen Heping <wenheping@gmail.com>
 # $FreeBSD$
 
 PORTNAME=	tmux
-PORTVERSION=	2.8
-PORTREVISION=	1
+PORTVERSION=	2.9a
 CATEGORIES=	sysutils
 MASTER_SITES=	https://github.com/tmux/tmux/releases/download/${PORTVERSION}/
 DISTFILES=	${DISTNAME}${EXTRACT_SUFX}
 
 MAINTAINER=	mat@FreeBSD.org
 COMMENT=	Terminal Multiplexer
 
 LICENSE=	ISCL
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 CONFLICTS_INSTALL=	tmux23
 
 USES=		pkgconfig ncurses
 
 USE_GITHUB=	nodefault
 GH_TUPLE=	imomaliev:tmux-bash-completion:ef56d3e:bash
 
 GNU_CONFIGURE=	yes
 CONFIGURE_ARGS=	--sysconfdir=${PREFIX}/etc --enable-utempter
 
 PLIST_FILES=	bin/tmux \
 		man/man1/tmux.1.gz \
 		etc/bash_completion.d/tmux
 
 PORTDOCS=	CHANGES README TODO
 PORTEXAMPLES=	*
 
 OPTIONS_DEFINE=	DOCS EXAMPLES LIBEVENT_STATIC BACKSPACE UTF8PROC
 OPTIONS_DEFAULT=	UTF8PROC
 
 LIBEVENT_STATIC_DESC=	Build with static libevent
 BACKSPACE_DESC=	Build with tty/keys patch
 UTF8PROC_DESC=	Build with utf8proc support
 
 BACKSPACE_EXTRA_PATCHES=	${PATCHDIR}/extra-patch-tty-keys.c
 
 LIBEVENT_STATIC_LIB_DEPENDS_OFF=	libevent.so:devel/libevent
 LIBEVENT_STATIC_BUILD_DEPENDS=	${LOCALBASE}/lib/libevent.a:devel/libevent
 LIBEVENT_STATIC_VARS=	LESTATIC=${LOCALBASE}/lib/libevent.a
 
 UTF8PROC_CONFIGURE_ENABLE=	utf8proc
 UTF8PROC_LIB_DEPENDS=	libutf8proc.so:textproc/utf8proc
 
 post-patch:
 	@${REINPLACE_CMD} -e 's|/etc/tmux.conf|${PREFIX}/etc/tmux.conf|g' ${WRKSRC}/CHANGES \
 		${WRKSRC}/tmux.h
 
 post-configure-LIBEVENT_STATIC-on:
 	${REINPLACE_CMD} -e '/LIBS/s|-levent[^[:blank:]]*|${LESTATIC}|' \
 		${WRKSRC}/${MAKEFILE}
 
 post-install:
 	@${MKDIR} ${STAGEDIR}${PREFIX}/etc/bash_completion.d
 	${INSTALL_DATA} ${WRKSRC_bash}/completions/tmux ${STAGEDIR}${PREFIX}/etc/bash_completion.d/tmux
 
 post-install-DOCS-on:
 	@${MKDIR} ${STAGEDIR}${DOCSDIR}
 	(cd ${WRKSRC} && ${INSTALL_DATA} ${PORTDOCS} ${STAGEDIR}${DOCSDIR})
 
 post-install-EXAMPLES-on:
 	@${MKDIR} ${STAGEDIR}${EXAMPLESDIR}
 	${INSTALL_DATA} ${WRKSRC}/example* ${STAGEDIR}${EXAMPLESDIR}
 
 .include <bsd.port.mk>
Index: head/sysutils/tmux/distinfo
===================================================================
--- head/sysutils/tmux/distinfo	(revision 504861)
+++ head/sysutils/tmux/distinfo	(revision 504862)
@@ -1,5 +1,5 @@
-TIMESTAMP = 1540476146
-SHA256 (tmux-2.8.tar.gz) = 7f6bf335634fafecff878d78de389562ea7f73a7367f268b66d37ea13617a2ba
-SIZE (tmux-2.8.tar.gz) = 491195
+TIMESTAMP = 1561207576
+SHA256 (tmux-2.9a.tar.gz) = 839d167a4517a6bffa6b6074e89a9a8630547b2dea2086f1fad15af12ab23b25
+SIZE (tmux-2.9a.tar.gz) = 510915
 SHA256 (imomaliev-tmux-bash-completion-ef56d3e_GH0.tar.gz) = 2f8f3fe586bbdeec9b251ce3ef74f5edef19ba371968a8011acef860ddac59e1
 SIZE (imomaliev-tmux-bash-completion-ef56d3e_GH0.tar.gz) = 1526
Index: head/sysutils/tmux/files/extra-patch-tty-keys.c
===================================================================
--- head/sysutils/tmux/files/extra-patch-tty-keys.c	(revision 504861)
+++ head/sysutils/tmux/files/extra-patch-tty-keys.c	(revision 504862)
@@ -1,11 +1,11 @@
---- tty-keys.c.orig	2018-10-17 18:28:08 UTC
+--- tty-keys.c.orig	2019-05-01 06:07:32 UTC
 +++ tty-keys.c
-@@ -681,8 +681,6 @@ complete_key:
+@@ -704,8 +704,6 @@ complete_key:
  	 * used. termios should have a better idea.
  	 */
  	bspace = tty->tio.c_cc[VERASE];
 -	if (bspace != _POSIX_VDISABLE && (key & KEYC_MASK_KEY) == bspace)
 -		key = (key & KEYC_MASK_MOD) | KEYC_BSPACE;
  
  	/* Remove data from buffer. */
  	evbuffer_drain(tty->in, size);