diff --git a/pkgs/tools/security/gnupg/1.nix b/pkgs/tools/security/gnupg/1.nix
index 0dbea6529597..9c4f98a740bf 100644
--- a/pkgs/tools/security/gnupg/1.nix
+++ b/pkgs/tools/security/gnupg/1.nix
@@ -12,10 +12,21 @@ stdenv.mkDerivation rec {
 
   doCheck = true;
 
-  meta = {
-    description = "Free implementation of the OpenPGP standard for encrypting and signing data";
-    homepage = http://www.gnupg.org/;
-    license = stdenv.lib.licenses.gpl3Plus;
-    platforms = stdenv.lib.platforms.gnu; # arbitrary choice
+  meta = with stdenv.lib; {
+    homepage = "https://gnupg.org";
+    description = "Classic (1.4) release of the GNU Privacy Guard, a GPL OpenPGP implementation";
+    license = licenses.gpl3Plus;
+    longDescription = ''
+      The GNU Privacy Guard is the GNU project's complete and free
+      implementation of the OpenPGP standard as defined by RFC4880.  GnuPG
+      "classic" (1.4) is the old standalone version which is most suitable for
+      older or embedded platforms.  GnuPG allows to encrypt and sign your data
+      and communication, features a versatile key management system as well as
+      access modules for all kind of public key directories.  GnuPG, also known
+      as GPG, is a command line tool with features for easy integration with
+      other applications.  A wealth of frontend applications and libraries are
+      available.
+    '';
+    platforms = platforms.gnu; # arbitrary choice
   };
 }
diff --git a/pkgs/tools/security/gnupg/1compat.nix b/pkgs/tools/security/gnupg/1compat.nix
index 0fe294e5a117..c4cc68dcca38 100644
--- a/pkgs/tools/security/gnupg/1compat.nix
+++ b/pkgs/tools/security/gnupg/1compat.nix
@@ -1,7 +1,7 @@
 { stdenv, gnupg, coreutils, writeScript }:
 
 stdenv.mkDerivation {
-  name = "gnupg1compat-0";
+  name = "gnupg1compat-${gnupg.version}";
 
   builder = writeScript "gnupg1compat-builder" ''
     # First symlink all top-level dirs
@@ -18,7 +18,8 @@ stdenv.mkDerivation {
     ${coreutils}/bin/ln -s gpgv2 $out/bin/gpgv
   '';
 
-  meta = {
-    platforms = stdenv.lib.platforms.unix;
+  meta = gnupg.meta // {
+    description = gnupg.meta.description +
+      " with symbolic links for gpg and gpgv";
   };
 }
diff --git a/pkgs/tools/security/gnupg/20.nix b/pkgs/tools/security/gnupg/20.nix
index 06fdc4a2a442..6b011a00eb76 100644
--- a/pkgs/tools/security/gnupg/20.nix
+++ b/pkgs/tools/security/gnupg/20.nix
@@ -44,24 +44,22 @@ stdenv.mkDerivation rec {
 
   doCheck = true;
 
-  meta = {
-    homepage = "http://gnupg.org/";
-    description = "Free implementation of the OpenPGP standard for encrypting and signing data";
-    license = stdenv.lib.licenses.gpl3Plus;
-
+  meta = with stdenv.lib; {
+    homepage = "https://gnupg.org";
+    description = "Stable (2.0) release of the GNU Privacy Guard, a GPL OpenPGP implementation";
+    license = licenses.gpl3Plus;
     longDescription = ''
-      GnuPG is the GNU project's complete and free implementation of
-      the OpenPGP standard as defined by RFC4880.  GnuPG allows to
-      encrypt and sign your data and communication, features a
-      versatile key management system as well as access modules for all
-      kind of public key directories.  GnuPG, also known as GPG, is a
-      command line tool with features for easy integration with other
-      applications.  A wealth of frontend applications and libraries
-      are available.  Version 2 of GnuPG also provides support for
-      S/MIME.
+      The GNU Privacy Guard is the GNU project's complete and free
+      implementation of the OpenPGP standard as defined by RFC4880.  GnuPG
+      "stable" (2.0) is the current stable version for general use.  This is
+      what most users are still using.  GnuPG allows to encrypt and sign your
+      data and communication, features a versatile key management system as well
+      as access modules for all kind of public key directories.  GnuPG, also
+      known as GPG, is a command line tool with features for easy integration
+      with other applications.  A wealth of frontend applications and libraries
+      are available.  Version 2 of GnuPG also provides support for S/MIME.
     '';
-
-    maintainers = with stdenv.lib.maintainers; [ roconnor ];
-    platforms = stdenv.lib.platforms.all;
+    maintainers = with maintainers; [ roconnor ];
+    platforms = platforms.all;
   };
 }
diff --git a/pkgs/tools/security/gnupg/21.nix b/pkgs/tools/security/gnupg/21.nix
index 0f021c6b4a12..72786247af41 100644
--- a/pkgs/tools/security/gnupg/21.nix
+++ b/pkgs/tools/security/gnupg/21.nix
@@ -48,9 +48,20 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://gnupg.org;
-    description = "A complete and free implementation of the OpenPGP standard";
+    homepage = "https://gnupg.org";
+    description = "Modern (2.1) release of the GNU Privacy Guard, a GPL OpenPGP implementation";
     license = licenses.gpl3Plus;
+    longDescription = ''
+      The GNU Privacy Guard is the GNU project's complete and free
+      implementation of the OpenPGP standard as defined by RFC4880.  GnuPG
+      "modern" (2.1) is the latest development with a lot of new features.
+      GnuPG allows to encrypt and sign your data and communication, features a
+      versatile key management system as well as access modules for all kind of
+      public key directories.  GnuPG, also known as GPG, is a command line tool
+      with features for easy integration with other applications.  A wealth of
+      frontend applications and libraries are available.  Version 2 of GnuPG
+      also provides support for S/MIME.
+    '';
     maintainers = with maintainers; [ wkennington peti fpletz vrthra ];
     platforms = platforms.all;
   };