diff --git a/ChangeLog b/ChangeLog
index 772b422002b9a06a6100f6bb1db19edae395b6d0..092d2f68e726006fbe63058d22f00588b582f35b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2015-07-23  Benno Schulenberg  <bensberg@justemail.net>
+	* doc/man/{nano.1,nanorc.5}, doc/texinfo/nano.texi: Add deprecation
+	notices for the options 'set const', 'set poslog' and '--poslog'.
+	Suggested by Eitan Adler.
+
 2015-07-22  Mike Frysinger  <vapier@gentoo.org>
 	* src/files.c (check_dotnano), src/global.c (thanks_for_all_the_fish),
 	src/rcfile.c (parse_binding): Plug a few memory leaks.
diff --git a/doc/man/nano.1 b/doc/man/nano.1
index c8d1d3a9fcce9830cedf111ada89e5781bf73f7f..4e786141ce79aecd28cf885a56c1778b06b02fcf 100644
--- a/doc/man/nano.1
+++ b/doc/man/nano.1
@@ -20,7 +20,7 @@
 .\"   Documentation License along with this program.  If not, see
 .\"   <http://www.gnu.org/licenses/>.
 .\"
-.TH NANO 1 "version 2.4.2" "June 2015"
+.TH NANO 1 "version 2.4.3" "July 2015"
 .\" Please adjust this date whenever revising the manpage.
 .\"
 
@@ -117,7 +117,7 @@ Use the blank line below the titlebar as extra editing space.
 .TP
 .BR \-P ", " \-\-positionlog
 Log and later read back the location of the cursor and place it there
-again.
+again.  (The old form of this option, \fB\-\-poslog\fR, is deprecated.)
 .TP
 .BR "\-Q ""\fIcharacters\fB""" ", " "\-\-quotestr=""" \fIcharacters\fR """
 Set the quoting string for justifying.  The default is
diff --git a/doc/man/nanorc.5 b/doc/man/nanorc.5
index 60206b27383ab33d151025c470ca771efba7982d..fbbe11cba8c330cc929378b8318f3ac08bc49b62 100644
--- a/doc/man/nanorc.5
+++ b/doc/man/nanorc.5
@@ -20,7 +20,7 @@
 .\"   Documentation License along with this program.  If not, see
 .\"   <http://www.gnu.org/licenses/>.
 .\"
-.TH NANORC 5 "version 2.4.2" "June 2015"
+.TH NANORC 5 "version 2.4.3" "July 2015"
 .\" Please adjust this date whenever revising the manpage.
 .\"
 .SH NAME
@@ -92,6 +92,7 @@ Do case-sensitive searches by default.
 .TP
 .B set constantshow
 Constantly display the cursor position in the status bar.
+(The old form of this option, '\fBset const\fR', is deprecated.)
 .TP
 .B set cut
 Use cut-to-end-of-line by default, instead of cutting the whole line.
@@ -160,6 +161,7 @@ directory feature is turned off.
 .TP
 .B set positionlog
 Save the cursor position of files between editing sessions.
+(The old form of this option, '\fBset poslog\fR', is deprecated.)
 .TP
 .B set preserve
 Preserve the XON and XOFF keys (^Q and ^S).
diff --git a/doc/texinfo/nano.texi b/doc/texinfo/nano.texi
index b77cab3d3e12b9b75dfec4c1d01502e53ff3c036..d635f02cf207b40c8843f43952dd5b52c18be40d 100644
--- a/doc/texinfo/nano.texi
+++ b/doc/texinfo/nano.texi
@@ -6,8 +6,8 @@
 
 @smallbook
 @set EDITION 0.3
-@set VERSION 2.4.2
-@set UPDATED June 2015
+@set VERSION 2.4.3
+@set UPDATED July 2015
 
 @dircategory Editors
 @direntry
@@ -21,7 +21,7 @@
 @titlepage
 @title GNU @code{nano}
 @subtitle a small and friendly text editor.
-@subtitle version 2.4.2
+@subtitle version 2.4.3
 
 @author Chris Allegretta
 @page
@@ -190,6 +190,7 @@ Use the blank line below the titlebar as extra editing space.
 @itemx --positionlog
 Log for each file the last location of the cursor, and read it
 back upon reopening the file and place it there again.
+(The old form of this option, @code{--poslog}, is deprecated.)
 
 @item -Q "@var{characters}"
 @itemx --quotestr="@var{characters}"
@@ -643,6 +644,7 @@ Do case-sensitive searches by default.
 
 @item set constantshow
 Constantly display the cursor position in the status bar.
+(The old form of this option, @code{set const}, is deprecated.)
 
 @item set cut
 Use cut-to-end-of-line by default, instead of cutting the whole line.
@@ -712,6 +714,7 @@ directory feature is turned off.
 
 @item set positionlog
 Save the cursor position of files between editing sessions.
+(The old form of this option, @code{set poslog}, is deprecated.)
 
 @item set preserve
 Preserve the XON and XOFF keys (^Q and ^S).