diff --git a/pkgs/applications/kde/akonadi/default.nix b/pkgs/applications/kde/akonadi/default.nix
index 8fa12be3a8b6..e816d3eeb41e 100644
--- a/pkgs/applications/kde/akonadi/default.nix
+++ b/pkgs/applications/kde/akonadi/default.nix
@@ -1,6 +1,6 @@
 {
   mkDerivation, lib, kdepimTeam,
-  extra-cmake-modules, shared-mime-info, qtbase, accounts-qt,
+  extra-cmake-modules, shared-mime-info, accounts-qt,
   boost, kaccounts-integration, kcompletion, kconfigwidgets, kcrash, kdbusaddons,
   kdesignerplugin, ki18n, kiconthemes, kio, kitemmodels, kwindowsystem, mariadb,
   postgresql, qttools, signond, xz,
@@ -17,7 +17,6 @@ mkDerivation {
   meta = {
     license = [ lib.licenses.lgpl21 ];
     maintainers = kdepimTeam;
-    broken = lib.versionOlder qtbase.version "5.13";
   };
   patches = [
     ./0001-akonadi-paths.patch
diff --git a/pkgs/applications/kde/default.nix b/pkgs/applications/kde/default.nix
index 6968c50c6099..c121d0fb5399 100644
--- a/pkgs/applications/kde/default.nix
+++ b/pkgs/applications/kde/default.nix
@@ -30,9 +30,6 @@ still shows most of the available features is in `./gwenview.nix`.
 }:
 
 let
-  minQtVersion = "5.15";
-  broken = lib.versionOlder libsForQt5.qtbase.version minQtVersion;
-
   mirror = "mirror://kde";
   srcs = import ./srcs.nix { inherit fetchurl mirror; };
 
@@ -53,7 +50,6 @@ let
           meta // {
             homepage = meta.homepage or "http://www.kde.org";
             platforms = meta.platforms or lib.platforms.linux;
-            broken = meta.broken or broken;
           };
       });
 
diff --git a/pkgs/applications/kde/dolphin.nix b/pkgs/applications/kde/dolphin.nix
index 9e4ab1d41027..91ab0f8f57b1 100644
--- a/pkgs/applications/kde/dolphin.nix
+++ b/pkgs/applications/kde/dolphin.nix
@@ -5,7 +5,7 @@
   kcompletion, kconfig, kcoreaddons, kdbusaddons,
   kfilemetadata, ki18n, kiconthemes, kinit, kio, knewstuff, knotifications,
   kparts, ktexteditor, kwindowsystem, phonon, solid,
-  wayland, qtbase, qtwayland
+  wayland, qtwayland
 }:
 
 mkDerivation {
@@ -15,7 +15,6 @@ mkDerivation {
     description = "KDE file manager";
     license = with lib.licenses; [ gpl2Plus fdl12Plus ];
     maintainers = [ lib.maintainers.ttuegel ];
-    broken = lib.versionOlder qtbase.version "5.14";
   };
   nativeBuildInputs = [ extra-cmake-modules kdoctools ];
   propagatedUserEnvPkgs = [ baloo ];
diff --git a/pkgs/applications/kde/elisa.nix b/pkgs/applications/kde/elisa.nix
index 51203271b1ff..5073d869a3aa 100644
--- a/pkgs/applications/kde/elisa.nix
+++ b/pkgs/applications/kde/elisa.nix
@@ -2,7 +2,6 @@
 , lib
 , extra-cmake-modules
 , kdoctools
-, qtbase
 , qtmultimedia
 , qtquickcontrols2
 , qtwebsockets
@@ -17,7 +16,7 @@
 , libvlc
 }:
 
-mkDerivation rec {
+mkDerivation {
   pname = "elisa";
 
   outputs = [ "out" "dev" ];
@@ -45,6 +44,5 @@ mkDerivation rec {
     description = "A simple media player for KDE";
     license = licenses.gpl3;
     maintainers = with maintainers; [ peterhoeg ];
-    broken = lib.versionOlder qtbase.version "5.15";
   };
 }
diff --git a/pkgs/applications/kde/filelight.nix b/pkgs/applications/kde/filelight.nix
index 2a6e349f2f23..af1b131b5c76 100644
--- a/pkgs/applications/kde/filelight.nix
+++ b/pkgs/applications/kde/filelight.nix
@@ -5,7 +5,6 @@
 , kio
 , kparts
 , kxmlgui
-, qtbase
 , qtscript
 , solid
 , qtquickcontrols2
@@ -21,7 +20,6 @@ mkDerivation {
     homepage = "https://apps.kde.org/filelight/";
     license = with lib.licenses; [ gpl2 ];
     maintainers = with lib.maintainers; [ fridh vcunat ];
-    broken = lib.versionOlder qtbase.version "5.13";
   };
   nativeBuildInputs = [ extra-cmake-modules kdoctools ];
   propagatedBuildInputs = [
diff --git a/pkgs/applications/kde/grantleetheme/default.nix b/pkgs/applications/kde/grantleetheme/default.nix
index 6d29d6e6d8c1..ff4b8fc93ed9 100644
--- a/pkgs/applications/kde/grantleetheme/default.nix
+++ b/pkgs/applications/kde/grantleetheme/default.nix
@@ -9,7 +9,6 @@ mkDerivation {
   meta = {
     license = with lib.licenses; [ gpl2Plus lgpl21Plus fdl12Plus ];
     maintainers = kdepimTeam;
-    broken = lib.versionOlder qtbase.version "5.13.0";
   };
   output = [ "out" "dev" ];
   nativeBuildInputs = [ extra-cmake-modules kdoctools ];
diff --git a/pkgs/applications/kde/kdebugsettings.nix b/pkgs/applications/kde/kdebugsettings.nix
index 6d407e0a50d7..2ebf9c889448 100644
--- a/pkgs/applications/kde/kdebugsettings.nix
+++ b/pkgs/applications/kde/kdebugsettings.nix
@@ -3,7 +3,7 @@
   extra-cmake-modules, kdoctools,
   gettext,
   kcoreaddons, kconfig, kdbusaddons, kwidgetsaddons, kitemviews, kcompletion,
-  qtbase, python3
+  python3
 }:
 
 mkDerivation {
@@ -13,7 +13,6 @@ mkDerivation {
     description = "KDE debug settings";
     license = with lib.licenses; [ gpl2 ];
     maintainers = [ ];
-    broken = lib.versionOlder qtbase.version "5.13";
   };
   nativeBuildInputs = [ extra-cmake-modules kdoctools ];
   buildInputs = [
diff --git a/pkgs/applications/kde/kdenetwork-filesharing.nix b/pkgs/applications/kde/kdenetwork-filesharing.nix
index a7da03ffdd14..74ed9386cf05 100644
--- a/pkgs/applications/kde/kdenetwork-filesharing.nix
+++ b/pkgs/applications/kde/kdenetwork-filesharing.nix
@@ -1,7 +1,7 @@
 {
   mkDerivation, lib,
   extra-cmake-modules, kdoctools,
-  kcoreaddons, kdeclarative, ki18n, kio, kwidgetsaddons, samba, qtbase,
+  kcoreaddons, kdeclarative, ki18n, kio, kwidgetsaddons, samba,
 }:
 
 mkDerivation {
@@ -9,7 +9,6 @@ mkDerivation {
   meta = {
     license = [ lib.licenses.gpl2 lib.licenses.lgpl21 ];
     maintainers = [ lib.maintainers.ttuegel ];
-    broken = lib.versionOlder qtbase.version "5.13";
   };
   nativeBuildInputs = [ extra-cmake-modules kdoctools ];
   buildInputs = [ kcoreaddons kdeclarative ki18n kio kwidgetsaddons samba ];
diff --git a/pkgs/applications/kde/kirigami-gallery.nix b/pkgs/applications/kde/kirigami-gallery.nix
index f012188ed992..c22cc16aaf91 100644
--- a/pkgs/applications/kde/kirigami-gallery.nix
+++ b/pkgs/applications/kde/kirigami-gallery.nix
@@ -6,10 +6,9 @@
 , qtgraphicaleffects
 , qtquickcontrols2
 , qttools
-, qtbase
 }:
 
-mkDerivation rec {
+mkDerivation {
   pname = "kirigami-gallery";
 
   nativeBuildInputs = [ extra-cmake-modules qttools ];
@@ -26,6 +25,5 @@ mkDerivation rec {
     description = "View examples of Kirigami components";
     license = licenses.lgpl2;
     maintainers = with maintainers; [ shadowrz ];
-    broken = versionOlder qtbase.version "5.15";
   };
 }
diff --git a/pkgs/applications/kde/kmime.nix b/pkgs/applications/kde/kmime.nix
index 51e78b5f6497..8dfd910eeded 100644
--- a/pkgs/applications/kde/kmime.nix
+++ b/pkgs/applications/kde/kmime.nix
@@ -13,5 +13,4 @@ mkDerivation {
   nativeBuildInputs = [ extra-cmake-modules ];
   buildInputs = [ kcodecs ki18n qtbase ];
   outputs = [ "out" "dev" ];
-  meta.broken = lib.versionOlder qtbase.version "5.15.0";
 }
diff --git a/pkgs/applications/kde/konqueror.nix b/pkgs/applications/kde/konqueror.nix
index cf4002a8f673..f048879ea545 100644
--- a/pkgs/applications/kde/konqueror.nix
+++ b/pkgs/applications/kde/konqueror.nix
@@ -2,7 +2,7 @@
 , mkDerivation
 , extra-cmake-modules, kdoctools
 , kinit, kcmutils, khtml, kdesu
-, qtbase, qtwebengine, qtx11extras, qtscript, qtwayland
+, qtwebengine, qtx11extras, qtscript, qtwayland
 }:
 
 mkDerivation {
@@ -25,7 +25,6 @@ mkDerivation {
     homepage = "https://apps.kde.org/konqueror/";
     description = "Web browser, file manager and viewer";
     license = with lib.licenses; [ gpl2 ];
-    maintainers = with lib.maintainers; [ ];
-    broken = lib.versionOlder qtbase.version "5.13";
+    maintainers = [ ];
   };
 }
diff --git a/pkgs/applications/kde/kpimtextedit.nix b/pkgs/applications/kde/kpimtextedit.nix
index e42c25e7463d..040fbd122ef8 100644
--- a/pkgs/applications/kde/kpimtextedit.nix
+++ b/pkgs/applications/kde/kpimtextedit.nix
@@ -2,7 +2,7 @@
   mkDerivation, lib, kdepimTeam,
   extra-cmake-modules, kdoctools,
   grantlee, kcodecs, kconfigwidgets, kemoticons, ki18n, kiconthemes, kio,
-  kdesignerplugin, ktextwidgets, sonnet, syntax-highlighting, qtbase, qttools,
+  kdesignerplugin, ktextwidgets, sonnet, syntax-highlighting, qttools,
   qtspeech
 }:
 
@@ -11,7 +11,6 @@ mkDerivation {
   meta = {
     license = with lib.licenses; [ gpl2Plus lgpl21Plus fdl12Plus ];
     maintainers = kdepimTeam;
-    broken = lib.versionOlder qtbase.version "5.13.0";
   };
   nativeBuildInputs = [ extra-cmake-modules kdoctools ];
   buildInputs = [
diff --git a/pkgs/applications/kde/kpkpass.nix b/pkgs/applications/kde/kpkpass.nix
index e7b814771220..1d5454ac0456 100644
--- a/pkgs/applications/kde/kpkpass.nix
+++ b/pkgs/applications/kde/kpkpass.nix
@@ -8,7 +8,6 @@ mkDerivation {
   meta = {
     license = with lib.licenses; [ lgpl21 ];
     maintainers = [ lib.maintainers.bkchr ];
-    broken = lib.versionOlder qtbase.version "5.15";
   };
   nativeBuildInputs = [ extra-cmake-modules shared-mime-info ];
   buildInputs = [ qtbase karchive ];
diff --git a/pkgs/applications/kde/krdc.nix b/pkgs/applications/kde/krdc.nix
index 9d9762523d97..dfa84dae31bc 100644
--- a/pkgs/applications/kde/krdc.nix
+++ b/pkgs/applications/kde/krdc.nix
@@ -2,7 +2,7 @@
   mkDerivation, lib,
   extra-cmake-modules, kdoctools, makeWrapper,
   kcmutils, kcompletion, kconfig, kdnssd, knotifyconfig, kwallet, kwidgetsaddons,
-  kwindowsystem, libvncserver, freerdp, qtbase,
+  kwindowsystem, libvncserver, freerdp,
 }:
 
 mkDerivation {
@@ -22,6 +22,5 @@ mkDerivation {
     license = with licenses; [ gpl2Plus lgpl21Plus fdl12Plus bsd3 ];
     maintainers = with maintainers; [ peterhoeg ];
     platforms = platforms.linux;
-    broken = lib.versionOlder qtbase.version "5.14";
   };
 }
diff --git a/pkgs/applications/kde/kwave.nix b/pkgs/applications/kde/kwave.nix
index 43f41c345fdf..a315ce6bd9bd 100644
--- a/pkgs/applications/kde/kwave.nix
+++ b/pkgs/applications/kde/kwave.nix
@@ -1,6 +1,6 @@
 { mkDerivation, lib, extra-cmake-modules, kdoctools, qtmultimedia, kcompletion, kconfig
 , kcrash, kiconthemes, kio, audiofile, libsamplerate, alsa-lib, libpulseaudio, flac, id3lib
-, libogg, libmad, libopus, libvorbis, fftw, librsvg, qtbase }:
+, libogg, libmad, libopus, libvorbis, fftw, librsvg }:
 
 mkDerivation {
   pname = "kwave";
@@ -11,7 +11,6 @@ mkDerivation {
     maintainers = with maintainers; [ freezeboy ];
     license = licenses.gpl2Plus;
     platforms = platforms.linux;
-    broken = lib.versionOlder qtbase.version "5.14";
   };
   nativeBuildInputs = [
     extra-cmake-modules
diff --git a/pkgs/applications/kde/libkgapi.nix b/pkgs/applications/kde/libkgapi.nix
index de0be7ea49ad..d5e34aa5024f 100644
--- a/pkgs/applications/kde/libkgapi.nix
+++ b/pkgs/applications/kde/libkgapi.nix
@@ -1,7 +1,7 @@
 {
   mkDerivation, lib, kdepimTeam,
   extra-cmake-modules, kdoctools,
-  qtbase, qtwebengine, kio, kcalendarcore, kcontacts,
+  qtwebengine, kio, kcalendarcore, kcontacts,
   cyrus_sasl
 }:
 
@@ -10,7 +10,6 @@ mkDerivation {
   meta = {
     license = with lib.licenses; [ gpl2Plus lgpl21Plus fdl12Plus ];
     maintainers = kdepimTeam;
-    broken = lib.versionOlder qtbase.version "5.14.0";
   };
   nativeBuildInputs = [ extra-cmake-modules kdoctools ];
   buildInputs = [ qtwebengine kio kcalendarcore kcontacts cyrus_sasl ];
diff --git a/pkgs/applications/kde/minuet.nix b/pkgs/applications/kde/minuet.nix
index 50a6a6f282ec..0aaa5012a073 100644
--- a/pkgs/applications/kde/minuet.nix
+++ b/pkgs/applications/kde/minuet.nix
@@ -1,4 +1,4 @@
-{ mkDerivation, qtbase
+{ mkDerivation
 , lib, extra-cmake-modules, gettext, python3
 , drumstick, fluidsynth
 , kcoreaddons, kcrash, kdoctools
@@ -12,7 +12,6 @@ mkDerivation {
     description = "Music Education Software";
     license = with licenses; [ lgpl21 gpl3 ];
     maintainers = with maintainers; [ peterhoeg HaoZeke ];
-    broken = lib.versionOlder qtbase.version "5.14";
   };
 
   nativeBuildInputs = [ extra-cmake-modules gettext kdoctools python3 qtdeclarative ];
diff --git a/pkgs/applications/kde/spectacle.nix b/pkgs/applications/kde/spectacle.nix
index 39e9f344c3ee..cbba15beebc7 100644
--- a/pkgs/applications/kde/spectacle.nix
+++ b/pkgs/applications/kde/spectacle.nix
@@ -3,7 +3,7 @@
 , ki18n, xcb-util-cursor
 , kconfig, kcoreaddons, kdbusaddons, kdeclarative, kio, kipi-plugins
 , knotifications, kscreen, kwidgetsaddons, kwindowsystem, kxmlgui, libkipi
-, qtbase, qtx11extras, knewstuff, kwayland, qttools, kcolorpicker, kimageannotator
+, qtx11extras, knewstuff, kwayland, qttools, kcolorpicker, kimageannotator
 }:
 
 mkDerivation {
@@ -23,6 +23,5 @@ mkDerivation {
     homepage = "https://apps.kde.org/spectacle/";
     description = "Screenshot capture utility";
     maintainers = with maintainers; [ ttuegel ];
-    broken = versionOlder qtbase.version "5.15";
   };
 }
diff --git a/pkgs/applications/maui/default.nix b/pkgs/applications/maui/default.nix
index 6f045bda658b..b91f13d12594 100644
--- a/pkgs/applications/maui/default.nix
+++ b/pkgs/applications/maui/default.nix
@@ -28,9 +28,6 @@ See also `pkgs/applications/kde` as this is what this is based on.
 }:
 
 let
-  minQtVersion = "5.15";
-  broken = lib.versionOlder libsForQt5.qtbase.version minQtVersion;
-
   mirror = "mirror://kde";
   srcs = import ./srcs.nix { inherit fetchurl mirror; };
 
@@ -51,11 +48,10 @@ let
           meta // {
             homepage = meta.homepage or "https://mauikit.org/";
             platforms = meta.platforms or lib.platforms.linux;
-            broken = meta.broken or broken;
           };
       });
 
-  packages = self: with self;
+  packages = self:
     let
       callPackage = self.newScope {
         inherit mkDerivation;
diff --git a/pkgs/applications/misc/qsyncthingtray/default.nix b/pkgs/applications/misc/qsyncthingtray/default.nix
index 100be6c2dc87..bfe1d61818f5 100644
--- a/pkgs/applications/misc/qsyncthingtray/default.nix
+++ b/pkgs/applications/misc/qsyncthingtray/default.nix
@@ -64,9 +64,6 @@ mkDerivation rec {
     license = licenses.lgpl3;
     maintainers = with maintainers; [ zraexy peterhoeg ];
     platforms = platforms.all;
-    # 0.5.7 segfaults when opening the main panel with qt 5.7 and fails to compile with qt 5.8
-    # but qt > 5.6 works when only using the native browser
-    # https://github.com/sieren/QSyncthingTray/issues/223
-    broken = (builtins.compareVersions qtbase.version "5.7.0" >= 0 && !preferNative) || stdenv.isDarwin;
+    broken = !preferNative || stdenv.isDarwin;
   };
 }
diff --git a/pkgs/applications/plasma-mobile/default.nix b/pkgs/applications/plasma-mobile/default.nix
index 9efbaa603395..34f28ae7ff5d 100644
--- a/pkgs/applications/plasma-mobile/default.nix
+++ b/pkgs/applications/plasma-mobile/default.nix
@@ -28,9 +28,6 @@ See also `pkgs/applications/kde` as this is what this is based on.
 }:
 
 let
-  minQtVersion = "5.15";
-  broken = lib.versionOlder libsForQt5.qtbase.version minQtVersion;
-
   mirror = "mirror://kde";
   srcs = import ./srcs.nix { inherit fetchurl mirror; };
 
@@ -51,11 +48,10 @@ let
           meta // {
             homepage = meta.homepage or "https://www.plasma-mobile.org/";
             platforms = meta.platforms or lib.platforms.linux;
-            broken = meta.broken or broken;
           };
       });
 
-  packages = self: with self;
+  packages = self:
     let
       callPackage = self.newScope {
         inherit mkDerivation;
diff --git a/pkgs/applications/science/math/speedcrunch/default.nix b/pkgs/applications/science/math/speedcrunch/default.nix
index 239b5fd6d367..98bc6b031f19 100644
--- a/pkgs/applications/science/math/speedcrunch/default.nix
+++ b/pkgs/applications/science/math/speedcrunch/default.nix
@@ -31,7 +31,6 @@ mkDerivation rec {
     '';
     maintainers = with maintainers; [ gebner j0hax ];
     inherit (qtbase.meta) platforms;
-    # works with qt 5.6 and qt 5.8
-    broken = builtins.compareVersions qtbase.version "5.7.0" == 0 || stdenv.isDarwin;
+    broken = stdenv.isDarwin;
   };
 }
diff --git a/pkgs/applications/video/avidemux/default.nix b/pkgs/applications/video/avidemux/default.nix
index 061c00b3f325..ea7ba432a4a4 100644
--- a/pkgs/applications/video/avidemux/default.nix
+++ b/pkgs/applications/video/avidemux/default.nix
@@ -56,7 +56,6 @@ stdenv.mkDerivation rec {
     ++ lib.optional withVPX libvpx;
 
   buildCommand = let
-    qtVersion = "5.${lib.versions.minor qtbase.version}";
     wrapWith = makeWrapper: filename:
       "${makeWrapper} ${filename} --set ADM_ROOT_DIR $out --prefix LD_LIBRARY_PATH : ${libXext}/lib";
     wrapQtApp = wrapWith "wrapQtApp";
diff --git a/pkgs/desktops/plasma-5/default.nix b/pkgs/desktops/plasma-5/default.nix
index f33688245b13..0c501b4c5a4c 100644
--- a/pkgs/desktops/plasma-5/default.nix
+++ b/pkgs/desktops/plasma-5/default.nix
@@ -33,8 +33,6 @@
 }:
 
 let
-  minQtVersion = "5.15";
-  broken = lib.versionOlder libsForQt5.qtbase.version minQtVersion;
   maintainers = with lib.maintainers; [ ttuegel nyanloutre ];
   license = with lib.licenses; [
     lgpl21Plus
@@ -107,7 +105,6 @@ let
                 license = meta.license or license;
                 maintainers = (meta.maintainers or [ ]) ++ maintainers;
                 platforms = meta.platforms or lib.platforms.linux;
-                broken = meta.broken or broken;
               };
           in
           qtStdenv.mkDerivation (args // {
diff --git a/pkgs/development/libraries/appstream/fix-build-for-qt-olderthan-514.patch b/pkgs/development/libraries/appstream/fix-build-for-qt-olderthan-514.patch
deleted file mode 100644
index 35db2bec914e..000000000000
--- a/pkgs/development/libraries/appstream/fix-build-for-qt-olderthan-514.patch
+++ /dev/null
@@ -1,43 +0,0 @@
-diff --git a/qt/component.h b/qt/component.h
-index 47abd1f3..74de943c 100644
---- a/qt/component.h
-+++ b/qt/component.h
-@@ -90,7 +90,7 @@ class APPSTREAMQT_EXPORT Component {
-             UrlKindContact,
- 
-             // deprecated
--            UrlTranslate   [[deprecated]] = UrlKindTranslate,
-+            UrlTranslate    = UrlKindTranslate,
-         };
-         Q_ENUM(UrlKind)
- 
-diff --git a/qt/pool.h b/qt/pool.h
-index b59829b7..5237f613 100644
---- a/qt/pool.h
-+++ b/qt/pool.h
-@@ -70,9 +70,9 @@ public:
-         FlagMonitor            = 1 << 7,
- 
-         // deprecated
--        FlagReadCollection   [[deprecated]] = FlagLoadOsCollection,
--        FlagReadMetainfo     [[deprecated]] = FlagLoadOsMetainfo,
--        FlagReadDesktopFiles [[deprecated]] = FlagLoadOsDesktopFiles,
-+        FlagReadCollection    = FlagLoadOsCollection,
-+        FlagReadMetainfo      = FlagLoadOsMetainfo,
-+        FlagReadDesktopFiles  = FlagLoadOsDesktopFiles,
-     };
- 
-     /**
-@@ -84,9 +84,9 @@ public:
-      * Flags on how caching should be used.
-      **/
-     enum CacheFlags {
--        CacheFlagNone      [[deprecated]] = 0,
--        CacheFlagUseUser   [[deprecated]] = 1 << 0,
--        CacheFlagUseSystem [[deprecated]] = 1 << 1,
-+        CacheFlagNone       = 0,
-+        CacheFlagUseUser    = 1 << 0,
-+        CacheFlagUseSystem  = 1 << 1,
-     };
- 
-     /**
diff --git a/pkgs/development/libraries/appstream/qt.nix b/pkgs/development/libraries/appstream/qt.nix
index 3704332119e2..bcc24376ff3e 100644
--- a/pkgs/development/libraries/appstream/qt.nix
+++ b/pkgs/development/libraries/appstream/qt.nix
@@ -1,4 +1,4 @@
-{ lib, mkDerivation, appstream, qtbase, qttools, nixosTests }:
+{ mkDerivation, appstream, qtbase, qttools, nixosTests }:
 
 # TODO: look into using the libraries from the regular appstream derivation as we keep duplicates here
 
@@ -14,14 +14,7 @@ mkDerivation {
 
   mesonFlags = appstream.mesonFlags ++ [ "-Dqt=true" ];
 
-  patches = (appstream.patches or []) ++ lib.optionals (lib.versionOlder qtbase.version "5.14") [
-    # Fix darwin build for libsForQt5.appstream-qt
-    # Old Qt moc doesn't know about fancy C++14 features
-    # ../qt/component.h:93: Parse error at "UrlTranslate"
-    # Remove both this patch and related comment in default.nix
-    # once Qt 5.14 or later becomes default on darwin
-    ./fix-build-for-qt-olderthan-514.patch
-  ];
+  patches = appstream.patches;
 
   postFixup = ''
     sed -i "$dev/lib/cmake/AppStreamQt/AppStreamQtConfig.cmake" \
diff --git a/pkgs/development/libraries/kde-frameworks/default.nix b/pkgs/development/libraries/kde-frameworks/default.nix
index 1e8ce2dd5227..1ed4dd267c3d 100644
--- a/pkgs/development/libraries/kde-frameworks/default.nix
+++ b/pkgs/development/libraries/kde-frameworks/default.nix
@@ -27,9 +27,6 @@ existing packages here and modify it as necessary.
 { libsForQt5, lib, fetchurl }:
 
 let
-
-  minQtVersion = "5.15";
-  broken = lib.versionOlder libsForQt5.qtbase.version minQtVersion;
   maintainers = with lib.maintainers; [ ttuegel nyanloutre ];
   license = with lib.licenses; [
     lgpl21Plus lgpl3Plus bsd2 mit gpl2Plus gpl3Plus fdl12Plus
@@ -86,7 +83,6 @@ let
                 license = meta.license or license;
                 maintainers = (meta.maintainers or []) ++ maintainers;
                 platforms = meta.platforms or lib.platforms.linux;
-                broken = meta.broken or broken;
               };
 
           in mkDerivation (args // {
diff --git a/pkgs/development/libraries/kde-frameworks/kimageformats.nix b/pkgs/development/libraries/kde-frameworks/kimageformats.nix
index beec3e13cf71..5954d56e6cca 100644
--- a/pkgs/development/libraries/kde-frameworks/kimageformats.nix
+++ b/pkgs/development/libraries/kde-frameworks/kimageformats.nix
@@ -16,8 +16,4 @@ mkDerivation {
   cmakeFlags = [
     "-DKIMAGEFORMATS_HEIF=ON"
   ];
-
-  meta = with lib; {
-    broken = versionOlder qtbase.version "5.14";
-  };
 }
diff --git a/pkgs/development/libraries/kpmcore/default.nix b/pkgs/development/libraries/kpmcore/default.nix
index d5e72109ba88..bbd9d8fd2f5f 100644
--- a/pkgs/development/libraries/kpmcore/default.nix
+++ b/pkgs/development/libraries/kpmcore/default.nix
@@ -1,5 +1,5 @@
 { stdenv, lib, fetchurl, extra-cmake-modules
-, qca-qt5, kauth, kio, polkit-qt, qtbase
+, qca-qt5, kauth, kio, polkit-qt
 , util-linux
 }:
 
@@ -42,7 +42,5 @@ stdenv.mkDerivation rec {
     homepage = "https://invent.kde.org/system/kpmcore";
     license = with licenses; [ cc-by-40 cc0 gpl3Plus mit ];
     maintainers = with maintainers; [ peterhoeg oxalica ];
-    # The build requires at least Qt 5.14:
-    broken = versionOlder qtbase.version "5.14";
   };
 }
diff --git a/pkgs/development/libraries/qt-5/modules/qtdeclarative.nix b/pkgs/development/libraries/qt-5/modules/qtdeclarative.nix
index 89f2672c26dd..f19074e08a0c 100644
--- a/pkgs/development/libraries/qt-5/modules/qtdeclarative.nix
+++ b/pkgs/development/libraries/qt-5/modules/qtdeclarative.nix
@@ -8,7 +8,7 @@ qtModule {
   preConfigure = ''
     NIX_CFLAGS_COMPILE+=" -DNIXPKGS_QML2_IMPORT_PREFIX=\"$qtQmlPrefix\""
   '';
-  configureFlags = lib.optionals (lib.versionAtLeast qtbase.version "5.11.0") [ "-qml-debug" ];
+  configureFlags = [ "-qml-debug" ];
   devTools = [
     "bin/qml"
     "bin/qmlcachegen"
diff --git a/pkgs/development/libraries/qt-5/modules/qtmultimedia.nix b/pkgs/development/libraries/qt-5/modules/qtmultimedia.nix
index 41a7eb6776c3..704cb7881c71 100644
--- a/pkgs/development/libraries/qt-5/modules/qtmultimedia.nix
+++ b/pkgs/development/libraries/qt-5/modules/qtmultimedia.nix
@@ -17,8 +17,7 @@ qtModule {
   nativeBuildInputs = [ pkg-config ];
   buildInputs = [ gstreamer gst-plugins-base ]
     # https://github.com/NixOS/nixpkgs/pull/169336 regarding libpulseaudio
-    ++ lib.optionals stdenv.isLinux [ libpulseaudio alsa-lib ]
-    ++ lib.optional (lib.versionAtLeast qtbase.version "5.14.0" && stdenv.isLinux) wayland;
+    ++ lib.optionals stdenv.isLinux [ libpulseaudio alsa-lib wayland ];
   outputs = [ "bin" "dev" "out" ];
   qmakeFlags = [ "GST_VERSION=1.0" ];
   NIX_LDFLAGS = lib.optionalString (stdenv.isDarwin) "-lobjc";
diff --git a/pkgs/development/libraries/qtstyleplugin-kvantum/default.nix b/pkgs/development/libraries/qtstyleplugin-kvantum/default.nix
index 4d0cbafe3731..098443319ac6 100644
--- a/pkgs/development/libraries/qtstyleplugin-kvantum/default.nix
+++ b/pkgs/development/libraries/qtstyleplugin-kvantum/default.nix
@@ -66,7 +66,6 @@ stdenv.mkDerivation rec {
     homepage = "https://github.com/tsujan/Kvantum";
     license = licenses.gpl3Plus;
     platforms = platforms.linux;
-    broken = lib.versionOlder qtbase.version "5.14";
     maintainers = [ maintainers.romildo ];
   };
 }