diff --git a/doc/man7/hamlib-primer.7 b/doc/man7/hamlib-primer.7
index dea2ee5af..b15a7205b 100644
--- a/doc/man7/hamlib-primer.7
+++ b/doc/man7/hamlib-primer.7
@@ -5,7 +5,7 @@
 .\"
 .\" Please keep this file in sync with doc/getting_started.texi
 .\"
-.TH HAMLIB-PRIMER "7" "2018-05-27" "Hamlib" "Hamlib Information Manual"
+.TH HAMLIB-PRIMER "7" "2020-09-08" "Hamlib" "Hamlib Information Manual"
 .
 .
 .SH NAME
@@ -73,11 +73,13 @@ SourceForge.net Hamlib files
 .UE
 Web page.
 .
-As a convenience, release archives are also mirrored at the
-.UR https://github.com/Hamlib/Hamlib/releases
-GitHub Hamlib releases
-.UE
-page.
+.\" It appears as of early September 2020 that the uploaded releases have been
+.\" deleted from GitHub
+'\" As a convenience, release archives are also mirrored at the
+.\" .UR https://github.com/Hamlib/Hamlib/releases
+.\" GitHub Hamlib releases
+'\" .UE
+.\" page.
 .
 The most recent release is listed first.
 .
@@ -87,14 +89,17 @@ The most recent release is listed first.
 Testing release candidates (RCs) are posted during the period (often a few
 weeks) before a planned release.
 .
-Beginning with the 3.2 release, RCs are hosted by the
-.UR https://github.com/Hamlib/Hamlib/releases
-GitHub release archive
-.UE .
+Beginning with the 4.0 release, RCs are hosted by the
+.UR http://sourceforge.net/projects/hamlib/files/hamlib/
+SourceForge.net Hamlib files
+.UE
+Web page.
 .
 RCs are identifed by having a
-.I ~rc
-suffix.
+.I ~rcX
+suffix where the
+.I X
+is replace by a numeral for successive release candidates.
 .
 .PP
 Daily snapshots of the development repository are available via the World Wide
@@ -140,21 +145,21 @@ None of the meta-data is hidden away on some central server.
 .PP
 To clone the repository use the following command:
 .
-.sp
-.RS 0.5i
+.PP
+.in +4n
 .EX
-git clone https://git.code.sf.net/p/hamlib/code hamlib
+.B git clone https://git.code.sf.net/p/hamlib/code hamlib
 .EE
-.RE
+.in
 .
 .PP
 or:
-.sp
-.RS 0.5i
+.PP
+.in +4n
 .EX
-git clone https://github.com/Hamlib/Hamlib.git
+.B git clone https://github.com/Hamlib/Hamlib.git
 .EE
-.RE
+.in
 .
 .PP
 .
@@ -194,18 +199,22 @@ Any is a good reason to build from the source code archive.
 .PP
 Before going further, this manual assumes familiarity with working from the
 command prompt in a Linux/BSD/Unix like system's
-.I shell
-environment, either in a
+.I Bourne shell
+environment (compatible Bourne shells include
+.BR bash (1),
+.BR ksh (1),
+.BR zsh (1),
+and several more) either in a
 .I virtual console
 (a text only screen with no graphics) or in a
 .I terminal
 in a desktop environment
-.RB ( xterm ,
-.BR rxvt ,
-.BR konsole ,
-.BR gnome\-terminal ,
-.BR xfce4\-terminal ,
-.BR terminal ,
+.RB ( xterm (1),
+.BR rxvt (1),
+.BR konsole "(1) (included with the KDE desktop),"
+.BR gnome\-terminal (1),
+.BR xfce4\-terminal (1),
+.BR terminal "(1) (included in macOS),"
 etc.).
 .
 If this is new to you, take some time and read up on using the shell.
@@ -250,14 +259,14 @@ or daily development snapshot follows the same set of commands, known as the
 .I three step
 which are each run from the top-level directory:
 .
-.sp
-.RS 0.5i
+.PP
+.in +4n
 .EX
-\&./configure
-make
-sudo make install
+.B ./configure
+.B make
+.B sudo make install
 .EE
-.RE
+.in
 .
 .SS configure
 .
@@ -279,12 +288,12 @@ command could be lurking elsewhere and we don't want to run that!
 .PP
 Run:
 .
-.sp
-.RS 0.5i
+.PP
+.in +4n
 .EX
-\&./configure
+.B ./configure
 .EE
-.RE
+.in
 .
 .PP
 from the top-level directory.
@@ -346,12 +355,12 @@ file system hierarchy.
 .
 Perhaps you want to install to your home directory instead:
 .
-.sp
-.RS 0.5i
+.PP
+.in +4n
 .EX
-\&./configure \-\-prefix=$HOME/local
+.B ./configure \-\-prefix=$HOME/local
 .EE
-.RE
+.in
 .
 .IP
 .BR Note :
@@ -365,7 +374,7 @@ installed to
 .IR $HOME/local .
 .
 .PP
-All of the files will be installed in the
+As a result of this option, all of the files will be installed in the
 .I local
 directory of your home directory.
 .
@@ -381,6 +390,26 @@ or superuser (administrator) privileges are not required when running
 On the other hand, some extra work will need to be done so other programs can
 use the library.
 .
+The utilities that are compiled as a part of the Hamlib build system will work
+as they are
+.I linked
+to the library installed under
+.IR local .
+.
+Running them will require declaring the complete path:
+.
+.PP
+.in +4n
+.EX
+.B local/bin/rigctl
+.EE
+.in
+.
+.PP
+or modifying your shell's
+.I PATH
+environment variable (see the shell tutorial site above).
+.
 .\" (TODO: describe library hackery in an appendix).
 .
 .PP
@@ -397,7 +426,7 @@ combination to scroll back up.
 .
 Conversely, Shift\-PageDown can be used to scroll down toward the end of the
 output and the shell prompt (Shift\-UpArrow/Shift\-DownArrow may also work to
-scroll one line at a time).
+scroll one line at a time (terminal dependent)).
 .
 .PP
 After a fair amount of time, depending on your computer, and a lot of screen
@@ -411,7 +440,7 @@ or some such failure message Hamlib is ready to be compiled.
 If there is an error and all of the required packages listed in
 .I README.betatester
 have been installed, please ask for help on the
-.MT hamlib\-developer@@lists.sourceforge.net
+.MT hamlib\-developer@lists.sourceforge.net
 hamlib-developer mailing list
 .ME .
 .
@@ -435,12 +464,12 @@ library files and its executable programs.
 .PP
 Run:
 .
-.sp
-.RS 0.5i
+.PP
+.in +4n
 .EX
-make
+.B make
 .EE
-.RE
+.in
 .
 .PP
 from the top-level directory.
@@ -449,7 +478,7 @@ from the top-level directory.
 Any error that causes
 .B make
 to stop early is cause for a question to the
-.MT hamlib\-developer@@lists.sourceforge.net
+.MT hamlib\-developer@lists.sourceforge.net
 hamlib-developer mailing list
 .ME .
 .
@@ -460,9 +489,9 @@ will take longer than
 .B configure
 to complete its run.
 .
-As it is a system command, and therefore found in the
-.BR PATH ,
-prefixing
+As it is a system command, and therefore found in the shell's
+.B PATH
+environment variable, prefixing
 .B make
 with
 .I ./
@@ -490,16 +519,44 @@ family of distributions.
 .PP
 Run:
 .
-.sp
-.RS 0.5i
+.PP
+.in +4n
 .EX
-sudo make install
+.B sudo make install
 .EE
-.RE
+.in
+.
+.PP
+or:
+.
+.PP
+.in +4n
+.EX
+.RB $ " su -l"
+Password:
+.RB # " make install"
+.EE
+.in
 .
 .PP
 as root from the top-level directory.
 .
+.IP
+.BR Note :
+The shell session is shown to show the change in prompt from a normal user
+account to the root accout.
+.
+.PP
+The
+.B \-l
+option to
+.B su
+forces a
+.I login
+shell so that environment variables such as
+.I PATH
+are set correctly.
+.
 .PP
 Running
 .B make install
@@ -536,22 +593,22 @@ It too will need to be run with root privileges:
 .PP
 Run:
 .
-.sp
-.RS 0.5i
+.PP
+.in +4n
 .EX
-sudo ldconfig
+.B sudo ldconfig
 .EE
-.RE
+.in
 .
 .PP
-as root from any directory.
+as root from any directory or while logged in as root from above.
 .
-.PP
+.IP
 .BR Note :
 Subsequent installations of Hamlib will not need to have
 .B ldconfig
 run after each installation if a newer version of Hamlib was not installed,
-i.e. when recompiling the same version during development.
+i.e., when recompiling the same version during development.
 .
 .PP
 On some distributions a bit of configuration will be needed before
@@ -637,7 +694,7 @@ executable files generated by running
 .B make
 freeing up considerable disk space.
 .
-.PP
+.IP
 .BR Note :
 During development of individual source files, it is not necessary to
 run
@@ -709,12 +766,12 @@ the needed compiler and linker options are passed as environment variables.
 .
 .PP
 Run:
-.sp
-.RS 0.5i
+.PP
+.in +4n
 .EX
-\&../hamlib/configure CFLAGS="-ggdb3 -O0" CXXFLAGS="-ggdb3 -O0"
+.B ../hamlib/configure CFLAGS="-ggdb3 -O0" CXXFLAGS="-ggdb3 -O0"
 .EE
-.RE
+.in
 .
 .PP
 from a sibling build directory intended for a debugging build.
@@ -738,7 +795,7 @@ and
 .B CXXFLAGS
 may be set independently for each compiler.
 .
-.PP
+.IP
 .BR Note :
 There are a number compiler options available for controlling debugging
 symbols and setting optimization levels.
@@ -748,7 +805,7 @@ Please consult the compiler's manual for all the details.
 .
 .SS Compiling for Microsoft Windows
 .
-Currently compiling is done on a Debian 8 (Jessie) virtual machine using
+Currently compiling is done on a Debian 10 (Buster) virtual machine using
 .UR http://www.mingw.org
 MinGW
 .UE .
@@ -764,16 +821,18 @@ Pre-compiled binaries for Microsoft Windows 32 and 64 bit architectures
 (Windows NT and newer) are available for both official releases and daily
 development snapshots.
 .
+.PP
 Official releases are available through the
 .UR http://sourceforge.net/projects/hamlib/files/hamlib/
 SourceForge.net file download service
 .UE .
 .
-As an alternative, official releases are also available though the
-.UR https://github.com/Hamlib/Hamlib/releases
-Hamlib archive at GitHub
-.UE .
+.\"As an alternative, official releases are also available though the
+.\".UR https://github.com/Hamlib/Hamlib/releases
+.\"Hamlib archive at GitHub
+.\".UE .
 .
+.PP
 Daily development snapshots are available from the
 .UR http://n0nb.users.sourceforge.net/
 daily snapshots page
@@ -786,7 +845,7 @@ available.
 Among its features are selecting which portions of Hamlib are installed.
 .
 The
-.B PATH
+.I PATH
 environment variable will need to be set manually per the included
 .I README.w32-bin
 or
@@ -799,7 +858,7 @@ extracting installer.
 .
 .PP
 Bug reports and questions about these archives should be sent to the
-.MT hamlib-developer@@lists.sourceforge.net
+.MT hamlib-developer@lists.sourceforge.net
 hamlib-developer mailing list
 .ME .
 .
@@ -811,7 +870,7 @@ radio and rotator control functions for developers of software primarily of
 interest to radio amateurs and those interested in radio communications.
 .
 .PP
-Copyright \(co 2001-2018 Hamlib Group (various contributors)
+Copyright \(co 2001-2020 Hamlib Group (various contributors)
 .
 .PP
 This is free software; see the file COPYING for copying conditions.  There is
@@ -831,8 +890,8 @@ NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 .SH COLOPHON
 .
 Links to the Hamlib Wiki, Git repository, release archives, and daily snapshot
-archives:
-.IP
+archives are available via
+.
 .UR http://www.hamlib.org
 hamlib.org
 .UE .
diff --git a/doc/man7/hamlib-utilities.7 b/doc/man7/hamlib-utilities.7
index 8b369c08f..866bdd689 100644
--- a/doc/man7/hamlib-utilities.7
+++ b/doc/man7/hamlib-utilities.7
@@ -5,7 +5,7 @@
 .\"
 .\" Please keep this file in sync with doc/utility-programs.texi
 .\"
-.TH HAMLIB-UTILITIES "7" "2018-05-27" "Hamlib" "Hamlib Information Manual"
+.TH HAMLIB-UTILITIES "7" "2020-09-08" "Hamlib" "Hamlib Information Manual"
 .
 .
 .SH NAME
@@ -26,17 +26,20 @@ library functions both through the
 .SM API.
 .
 .PP
-This page summarizes the two test programs,
+This page summarizes the three test programs,
+.BR ampctl (1)
+for testing amplifier back ends,
 .BR rigctl (1)
-for testing radio back ends and
+for testing radio back ends, and
 .BR rotctl (1)
-for testing rotator back ends and the two network daemons,
-.BR rigctld (1)
+for testing rotator back ends and the three network daemons,
+.BR ampctld (1),
+.BR rigctld (1),
 and
 .BR rotcltd (1)
-for radio and rotator access via network sockets.
+for amplifier, radio, and rotator access via network sockets.
 .
-Also included are three demonstation utilities,
+Also included are three demonstration utilities,
 .BR rigmem (1),
 .BR rigsmtr (1),
 and
@@ -70,42 +73,40 @@ additional commands.
 .
 .PP
 In its most simple use as a
-.I "command line"
+.I command line
 program, rigctl is used to set frequency and mode by typing commands after any
 rigctl options:
 .
-.sp
-.RS 0.5i
+.PP
+.in +4n
 .EX
-rigctl F 14205000
-.br
-rigctl M USB 2400
+.B rigctl F 14205000
+.B rigctl M USB 2400
 .EE
-.RE
+.in
 .
 .PP
 and then query those values:
 .
-.sp
-.RS 0.5i
+.PP
+.in +4n
 .EX
-rigctl f
-.br
-rigctl m
+.B rigctl f
+.B rigctl m
 .EE
-.RE
+.in
 .
 .PP
 Entering
-.I "interactive mode"
+.I interactive mode
 is a simple matter of not placing any commands after any rigctl options:
 .
-.sp
-.RS 0.5i
+.PP
+.in +4n
 .EX
-rigctl
+.B rigctl
 .EE
-.RE
+.in
 .
 .PP
 Entering interactive mode allows successive commands to be entered without
@@ -121,35 +122,31 @@ library.
 .PP
 Interactive mode is indicated by the spartan prompt:
 .
-.sp
-.RS 0.5i
+.PP
+.in +4n
 .EX
 Rig command:
 .EE
-.RE
+.in
 .
 .PP
 Commands are given at the prompt and follow the general rule that upper case
 letters set a value and lower case letters query a value:
 .
-.sp
-.RS 0.5i
+.PP
+.in +4n
 .EX
-Rig command: M
-.br
+.RB "Rig command: " M
+.RB "Mode: " USB
+.RB "Passband: " 2500
+
+.RB "Rig command: " m
 Mode: USB
-.br
 Passband: 2500
-.sp
-Rig command: m
-.br
-Mode: USB
-.br
-Passband: 2500
-.sp
+
 Rig command:
 .EE
-.RE
+.in
 .
 .PP
 An additional prompt is printed when more information is required by the
@@ -168,7 +165,7 @@ The above examples invoked rigctl without specifying a radio model.
 .
 This is a feature where the Hamlib internal radio model 1
 .I dummy
-is used instead.
+is used.
 .
 The dummy radio provides a way to test Hamlib functions without the need for
 actual radio hardware.
@@ -179,32 +176,29 @@ the actual radio connected to the computer is necessary for debugging.
 .PP
 For example, to quickly set frequency on an Elecraft K3:
 .
-.sp
-.RS 0.5i
+.PP
+.in +4n
 .EX
-rigctl -m 229 -r /dev/rig F 3900000
+.B rigctl -m 2029 -r /dev/rig F 3900000
 .EE
-.RE
+.in
 .
 .PP
 and to query the frequency and then mode:
 .
-.sp
-.RS 0.5i
+.PP
+.in +4n
 .EX
-rigctl -m 229 -r /dev/rig f
-.br
+.B rigctl -m 2029 -r /dev/rig f
 3900000
-.sp
-rigctl -m 229 -r /dev/rig m
-.br
+
+.B rigctl -m 2029 -r /dev/rig m
 LSB
-.br
 2000
 .EE
-.RE
+.in
 .
-.PP
+.IP
 .BR Note :
 the returned values do not have the prompt strings associated with interactive
 mode as shown above.
@@ -220,40 +214,29 @@ option takes the path to the port device on
 .SM POSIX
 and the device name on Microsoft Windows.
 .
-.PP
+.IP
 .BR Note :
 A complete list of supported radio models may be seen by use of the
 .B -l
 option:
 .
-.sp
-.RS 0.5i
+.PP
+.in +4n
 .EX
-rigctl -l
-.br
+.B rigctl -l
  Rig #  Mfg              Model         Version    Status
-.br
      1  Hamlib           Dummy         0.5        Beta
-.br
      2  Hamlib           NET rigctl    0.3        Beta
-.br
-   101  Yaesu            FT-847        0.5        Beta
-.br
-   103  Yaesu            FT-1000D      0.0.6      Alpha
-.br
+  1001  Yaesu            FT-847        0.5        Beta
+  1003  Yaesu            FT-1000D      0.0.6      Alpha
 \&.
-.br
 \&.
-.br
 \&.
-.br
-  2702  Rohde&Schwarz    EB200         0.1        Untested
-.br
-  2801  Philips/Simoco   PRM8060       0.1        Alpha
-.br
-  2901  ADAT www.adat.ch ADT-200A      1.36       Beta
+ 27002  Rohde&Schwarz    EB200         0.1        Untested
+ 28001  Philips/Simoco   PRM8060       0.1        Alpha
+ 29001  ADAT www.adat.ch ADT-200A      1.36       Beta
 .EE
-.RE
+.in
 .
 .PP
 The list is long so use \f(CWShift\-PageUp\fP/\f(CWShift\-PageDown\fP on
@@ -264,7 +247,7 @@ window on Microsoft Windows) or the output can be piped to
 .BR more (1)
 or
 .BR less (1),
-e.g. \(lq\f(CWrigctl -l | more\fP\(rq to scroll back up the list.
+e.g., \(lq\f(CWrigctl -l | more\fP\(rq to scroll back up the list.
 .
 The list is sorted numerically by model number since Hamlib 1.2.15.1.
 .
@@ -305,40 +288,39 @@ additional commands.
 .
 .PP
 In its most simple use as a
-.I "command line"
+.I command line
 program, rotctl is used to set azimuth position and (optionally) elevation by
 typing commands after any rotctl options:
 .
-.sp
-.RS 0.5i
+.PP
+.in +4n
 .EX
-rotctl P 145.0 23.0
-.br
-rotctl M 8 25
+.B rotctl P 145.0 23.0
+.B rotctl M 8 25
 .EE
-.RE
+.in
 .
 .PP
 and then query those values:
 .
-.sp
-.RS 0.5i
+.PP
+.in +4n
 .EX
-rotctl p
+.B rotctl p
 .EE
-.RE
+.in
 .
 .PP
 Entering
-.I "interactive mode"
+.I interactive mode
 is a simple matter of not placing any commands after any rotctl options:
 .
-.sp
-.RS 0.5i
+.PP
+.in +4n
 .EX
-rotctl
+.B rotctl
 .EE
-.RE
+.in
 .
 .PP
 Entering interactive mode allows successive commands to be entered without
@@ -354,40 +336,34 @@ library.
 .PP
 Interactive mode is indicated by the spartan prompt:
 .
-.sp
-.RS 0.5i
+.PP
+.in +4n
 .EX
 Rotator command:
 .EE
-.RE
+.in
 .
 .PP
 Commands are given at the prompt:
 .
-.sp
-.RS 0.5i
+.PP
+.in +4n
 .EX
-Rotator command: M
-.br
-Direction: 16
-.br
-Speed: 60
-.sp
-Rotator command: p
-.br
+.RB "Rotator command: " M
+.RB "Direction: " 16
+.RB "Speed: " 60
+
+.RB "Rotator command: " p
 Azimuth: 11.352000
-.br
 Elevation: 0.000000
-.sp
-Rotator command: p
-.br
+
+.RB "Rotator command: " p
 Azimuth: 27.594000
-.br
 Elevation: 0.000000
-.sp
+
 Rotator command:
 .EE
-.RE
+.in
 .
 .PP
 An additional prompt is printed when more information is required by the
@@ -417,26 +393,24 @@ controller connected to the computer is necessary for debugging.
 .PP
 For example, to quickly set position for RotorEZ:
 .
-.sp
-.RS 0.5i
+.PP
+.in +4n
 .EX
-rotctl -m 401 -r /dev/rotor P 100.0 0.0
+.B rotctl -m 401 -r /dev/rotor P 100.0 0.0
 .EE
-.RE
+.in
 .
 .PP
 and to query the position:
 .
-.sp
-.RS 0.5i
+.PP
+.in +4n
 .EX
-rotctl -m 401 -r /dev/rotor p
-.br
+.B rotctl -m 401 -r /dev/rotor p
 100.000000
-.br
 0.000000
 .EE
-.RE
+.in
 .
 .PP
 The returned values do not have the prompt strings associated with interactive
@@ -453,40 +427,29 @@ option takes the path to the port device on
 .SM POSIX
 or the device name on Microsoft Windows.
 .
-.PP
+.IP
 .BR Note :
 A complete list of supported rotator models may be seen by use of the
 .B -l
 option:
 .
-.sp
-.RS 0.5i
+.PP
+.in +4n
 .EX
-rotctl -l
-.br
+.B rotctl -l
  Rot #  Mfg              Model         Version    Status
-.br
      1  Hamlib           Dummy         0.5        Beta
-.br
      2  Hamlib           NET rotctl    0.3        Beta
-.br
    201  Hamlib           EasycommI     0.3        Beta
-.br
    202  Hamlib           EasycommII    0.3        Beta
-.br
 \&.
-.br
 \&.
-.br
 \&.
-.br
   1201  AMSAT            IF-100        0.1        Untested
-.br
   1301  LA7LKA           ts7400        0.1        Beta
-.br
   1401  Celestron        NexStar       0.1        Untested
 .EE
-.RE
+.in
 .
 .PP
 The list is long so use \f(CWShift\-PageUp\fP/\f(CWShift\-PageDown\fP on
@@ -511,6 +474,21 @@ The complete reference for rotctl can be found in the
 manual page.
 .
 .
+.SH ampctl
+.
+The
+.BR ampctl (1)
+utility is a recent addition to the Hamlib utilities as a part of the 4.0
+development cycle.
+.
+It is intended to test the Hamlib implementation of amplifier control and is
+similar in function to the utilities previously described.
+.
+See the
+.BR ampctl (1)
+manual page for the complete reference.
+.
+.
 .SH rigctld
 .
 The
@@ -698,6 +676,22 @@ The complete reference for rotctld can be found in the
 manual page.
 .
 .
+.SH ampctl
+.
+The
+.BR ampctld (1)
+utility is a recent addition to the Hamlib utilities as a part of the 4.0
+development cycle.
+.
+It provides network socket access for the Hamlib implementation of amplifier
+control and is similar in function to the network utilities previously
+described.
+.
+See the
+.BR ampctld (1)
+manual page for the complete reference.
+.
+.
 .SH rigmem
 .
 .B rigmem
@@ -803,7 +797,7 @@ radio and rotator control functions for developers of software primarily of
 interest to radio amateurs and those interested in radio communications.
 .
 .PP
-Copyright \(co 2001-2018 Hamlib Group (various contributors)
+Copyright \(co 2001-2020 Hamlib Group (various contributors)
 .
 .PP
 This is free software; see the file COPYING for copying conditions.  There is
@@ -814,6 +808,8 @@ NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 .
 .BR less (1),
 .BR more (1),
+.BR ampctl (1),
+.BR ampctld (1),
 .BR rigctl (1),
 .BR rigctld (1),
 .BR rotctl (1),
@@ -828,8 +824,8 @@ NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 .SH COLOPHON
 .
 Links to the Hamlib Wiki, Git repository, release archives, and daily snapshot
-archives:
-.IP
+archives are available via
+.
 .UR http://www.hamlib.org
 hamlib.org
 .UE .
diff --git a/doc/man7/hamlib.7 b/doc/man7/hamlib.7
index 58988ed83..f7c715cb0 100644
--- a/doc/man7/hamlib.7
+++ b/doc/man7/hamlib.7
@@ -5,7 +5,7 @@
 .\"
 .\" Please keep this file in sync with doc/nutshell.texi
 .\"
-.TH HAMLIB "7" "2018-05-21" "Hamlib" "Hamlib Information Manual"
+.TH HAMLIB "7" "2020-09-08" "Hamlib" "Hamlib Information Manual"
 .
 .
 .SH NAME
@@ -153,20 +153,21 @@ in a few years.
 A major milestone was reached when Hamlib 1.2.0 was released in March 2004.
 .
 The API and Application Binary Interface (ABI) interfaces have remained stable
-since that time up to the latest release of 3.2 in early 2018.
+since that time up to the release of 3.3 in mid 2018.
+.
+Version 4.0 marks a major change to the ABI and certain changes to the API.
 .
 .PP
 Development continues through the major version number
-.RI 3. x
+.RI 4. x
 series and beyond.
 .
-While some API tweaks are planned, ABI compatibility with the prior
-.RI 1.2. x
-releases remains a priority.
+The 4.0 release marks a major change in the ABI with several changes for
+additional modes and such that will require client programs that use the C ABI
+to be recompiled/relinked, etc.
 .
-Other goals include streamlining the build system (done), improving the SWIG
-generated language bindings (done), improving the overall documentation (this
-man page with more in progress), and other updates as warranted.
+Other goals include improving the overall documentation (this man page with
+more in progress), and other updates as warranted.
 .
 .PP
 The Project is hosted by
@@ -255,28 +256,37 @@ atmosphere for development.
 Hamlib's source code is released under two
 licenses, the
 .B Lesser General Public License
-(LGPL) for the library portion, and the
+(LGPL) version 2.1 for the library portion, and the
 .B General Public License
-(GPL) for the utility programs.
+(GPL) version 2 for the utility programs.
 .
 .PP
 The LGPL allows the library to be used (linked) by programs regardless of
 their individual license.
 .
-However, any contributions to the library source remain under copyleft which
-means that the library source code may not be used in violation of the terms
-of the LGPL.
+However, any contributions to the library source remain under a copyleft
+license which means that the library source code may not be used in violation
+of the terms of the LGPL (see the file
+.B COPYING.LIB
+in the main source directory).
+.
+Concepts learned by studying these sources for the purpose of understanding
+the Hamlib API is not covered nor prohibited by the LGPL, however, directly
+copying LGPL sources into any work that is incompatible with the terms of the
+LGPL is a violation of the terms of the license.
 .
 .PP
 The utility program source files are released under the GPL.
 .
 Any direct use of these sources must be in a form that complies with the terms
-of the GPL.
+of the GPL (see the file
+.B COPYING
+in the main source directory).
 .
 Concepts learned by studying these sources for the purpose of understanding
 the Hamlib API is not covered nor prohibited by the GPL, however, directly
 copying GPL sources into any work that is incompatible with the terms of the
-GPL is prohibited.
+GPL is a violation of the terms of the license.
 .
 .
 .SS Radios with a clone capability
@@ -289,11 +299,11 @@ for cloning the memory contents from radio to another of the same model.
 .
 A related project,
 .UR http://chirp.danplanet.com
-CHIRP
+.B Chirp
 .UE ,
 aims to support radios with such a clone capability.
 .
-Please contact the CHIRP project for support of such radios.
+Please contact the Chirp project for support of such radios.
 .
 .
 .SS Pronouncing Hamlib
@@ -319,11 +329,12 @@ If you're French, the above does not apply! :-)
 .SH COPYING
 .
 This file is part of Hamlib, a project to develop a library that simplifies
-radio and rotator control functions for developers of software primarily of
-interest to radio amateurs and those interested in radio communications.
+radio, rotator, and amplifier control functions for developers of software
+primarily of interest to radio amateurs and those interested in radio
+communications.
 .
 .PP
-Copyright \(co 2001-2018 Hamlib Group (various contributors)
+Copyright \(co 2001-2020 Hamlib Group (various contributors)
 .
 .PP
 This is free software; see the file COPYING for copying conditions.  There is
@@ -338,8 +349,8 @@ NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 .SH COLOPHON
 .
 Links to the Hamlib Wiki, Git repository, release archives, and daily snapshot
-archives:
-.IP
+archives are available via
+.
 .UR http://www.hamlib.org
 hamlib.org
 .UE .