diff --git a/makepkg-x86_64.conf b/makepkg-x86_64.conf
index 137d412..4569c38 100644
--- a/makepkg-x86_64.conf
+++ b/makepkg-x86_64.conf
@@ -132,17 +132,17 @@ DBGSRCDIR="/usr/src/debug"
 COMPRESSGZ=(gzip -c -f -n)
 COMPRESSBZ2=(bzip2 -c -f)
 COMPRESSXZ=(xz -c -z -)
+COMPRESSZST=(zstd -c -z -q -)
 COMPRESSLRZ=(lrzip -q)
 COMPRESSLZO=(lzop -q)
 COMPRESSZ=(compress -c -f)
+COMPRESSLZ4=(lz4 -q)
+COMPRESSLZ=(lzip -c -f)
 
 #########################################################################
 # EXTENSION DEFAULTS
 #########################################################################
 #
-# WARNING: Do NOT modify these variables unless you know what you are
-#          doing.
-#
 PKGEXT='.pkg.tar.xz'
 SRCEXT='.src.tar.gz'
 
diff --git a/pacman-extra.conf b/pacman-extra.conf
index 8ea402a..ff1d93d 100644
--- a/pacman-extra.conf
+++ b/pacman-extra.conf
@@ -16,10 +16,9 @@
 #GPGDir      = /etc/pacman.d/gnupg/
 #HookDir     = /etc/pacman.d/hooks/
 HoldPkg     = pacman glibc
-#XferCommand = /usr/bin/curl -C - -f %u > %o
+#XferCommand = /usr/bin/curl -L -C - -f -o %o %u
 #XferCommand = /usr/bin/wget --passive-ftp -c -O %o %u
 #CleanMethod = KeepInstalled
-#UseDelta    = 0.7
 Architecture = auto
 
 # Pacman won't upgrade packages listed in IgnorePkg and members of IgnoreGroup
@@ -90,4 +89,3 @@ Include = /etc/pacman.d/mirrorlist
 #[custom]
 #SigLevel = Optional TrustAll
 #Server = file:///home/custompkgs
-
diff --git a/pacman-gnome-unstable.conf b/pacman-gnome-unstable.conf
index 315eb44..cb4f18e 100644
--- a/pacman-gnome-unstable.conf
+++ b/pacman-gnome-unstable.conf
@@ -16,10 +16,9 @@
 #GPGDir      = /etc/pacman.d/gnupg/
 #HookDir     = /etc/pacman.d/hooks/
 HoldPkg     = pacman glibc
-#XferCommand = /usr/bin/curl -C - -f %u > %o
+#XferCommand = /usr/bin/curl -L -C - -f -o %o %u
 #XferCommand = /usr/bin/wget --passive-ftp -c -O %o %u
 #CleanMethod = KeepInstalled
-#UseDelta    = 0.7
 Architecture = auto
 
 # Pacman won't upgrade packages listed in IgnorePkg and members of IgnoreGroup
@@ -99,4 +98,3 @@ Include = /etc/pacman.d/mirrorlist
 #[custom]
 #SigLevel = Optional TrustAll
 #Server = file:///home/custompkgs
-
diff --git a/pacman-kde-unstable.conf b/pacman-kde-unstable.conf
index eb722da..b9c9547 100644
--- a/pacman-kde-unstable.conf
+++ b/pacman-kde-unstable.conf
@@ -16,10 +16,9 @@
 #GPGDir      = /etc/pacman.d/gnupg/
 #HookDir     = /etc/pacman.d/hooks/
 HoldPkg     = pacman glibc
-#XferCommand = /usr/bin/curl -C - -f %u > %o
+#XferCommand = /usr/bin/curl -L -C - -f -o %o %u
 #XferCommand = /usr/bin/wget --passive-ftp -c -O %o %u
 #CleanMethod = KeepInstalled
-#UseDelta    = 0.7
 Architecture = auto
 
 # Pacman won't upgrade packages listed in IgnorePkg and members of IgnoreGroup
@@ -93,4 +92,3 @@ Include = /etc/pacman.d/mirrorlist
 #[custom]
 #SigLevel = Optional TrustAll
 #Server = file:///home/custompkgs
-
diff --git a/pacman-multilib-staging.conf b/pacman-multilib-staging.conf
index 7e32aa3..1e4b740 100644
--- a/pacman-multilib-staging.conf
+++ b/pacman-multilib-staging.conf
@@ -16,10 +16,9 @@
 #GPGDir      = /etc/pacman.d/gnupg/
 #HookDir     = /etc/pacman.d/hooks/
 HoldPkg     = pacman glibc
-#XferCommand = /usr/bin/curl -C - -f %u > %o
+#XferCommand = /usr/bin/curl -L -C - -f -o %o %u
 #XferCommand = /usr/bin/wget --passive-ftp -c -O %o %u
 #CleanMethod = KeepInstalled
-#UseDelta    = 0.7
 Architecture = auto
 
 # Pacman won't upgrade packages listed in IgnorePkg and members of IgnoreGroup
@@ -107,4 +106,3 @@ Include = /etc/pacman.d/mirrorlist
 #[custom]
 #SigLevel = Optional TrustAll
 #Server = file:///home/custompkgs
-
diff --git a/pacman-multilib-testing.conf b/pacman-multilib-testing.conf
index 462552d..b6d6e5e 100644
--- a/pacman-multilib-testing.conf
+++ b/pacman-multilib-testing.conf
@@ -16,10 +16,9 @@
 #GPGDir      = /etc/pacman.d/gnupg/
 #HookDir     = /etc/pacman.d/hooks/
 HoldPkg     = pacman glibc
-#XferCommand = /usr/bin/curl -C - -f %u > %o
+#XferCommand = /usr/bin/curl -L -C - -f -o %o %u
 #XferCommand = /usr/bin/wget --passive-ftp -c -O %o %u
 #CleanMethod = KeepInstalled
-#UseDelta    = 0.7
 Architecture = auto
 
 # Pacman won't upgrade packages listed in IgnorePkg and members of IgnoreGroup
@@ -98,4 +97,3 @@ Include = /etc/pacman.d/mirrorlist
 #[custom]
 #SigLevel = Optional TrustAll
 #Server = file:///home/custompkgs
-
diff --git a/pacman-multilib.conf b/pacman-multilib.conf
index b7ef137..55b5cf4 100644
--- a/pacman-multilib.conf
+++ b/pacman-multilib.conf
@@ -16,10 +16,9 @@
 #GPGDir      = /etc/pacman.d/gnupg/
 #HookDir     = /etc/pacman.d/hooks/
 HoldPkg     = pacman glibc
-#XferCommand = /usr/bin/curl -C - -f %u > %o
+#XferCommand = /usr/bin/curl -L -C - -f -o %o %u
 #XferCommand = /usr/bin/wget --passive-ftp -c -O %o %u
 #CleanMethod = KeepInstalled
-#UseDelta    = 0.7
 Architecture = auto
 
 # Pacman won't upgrade packages listed in IgnorePkg and members of IgnoreGroup
@@ -99,4 +98,3 @@ Include = /etc/pacman.d/mirrorlist
 #[custom]
 #SigLevel = Optional TrustAll
 #Server = file:///home/custompkgs
-
diff --git a/pacman-staging.conf b/pacman-staging.conf
index 291333b..6419342 100644
--- a/pacman-staging.conf
+++ b/pacman-staging.conf
@@ -16,10 +16,9 @@
 #GPGDir      = /etc/pacman.d/gnupg/
 #HookDir     = /etc/pacman.d/hooks/
 HoldPkg     = pacman glibc
-#XferCommand = /usr/bin/curl -C - -f %u > %o
+#XferCommand = /usr/bin/curl -L -C - -f -o %o %u
 #XferCommand = /usr/bin/wget --passive-ftp -c -O %o %u
 #CleanMethod = KeepInstalled
-#UseDelta    = 0.7
 Architecture = auto
 
 # Pacman won't upgrade packages listed in IgnorePkg and members of IgnoreGroup
@@ -96,4 +95,3 @@ Include = /etc/pacman.d/mirrorlist
 #[custom]
 #SigLevel = Optional TrustAll
 #Server = file:///home/custompkgs
-
diff --git a/pacman-testing.conf b/pacman-testing.conf
index 8a12d23..026cbaa 100644
--- a/pacman-testing.conf
+++ b/pacman-testing.conf
@@ -16,10 +16,9 @@
 #GPGDir      = /etc/pacman.d/gnupg/
 #HookDir     = /etc/pacman.d/hooks/
 HoldPkg     = pacman glibc
-#XferCommand = /usr/bin/curl -C - -f %u > %o
+#XferCommand = /usr/bin/curl -L -C - -f -o %o %u
 #XferCommand = /usr/bin/wget --passive-ftp -c -O %o %u
 #CleanMethod = KeepInstalled
-#UseDelta    = 0.7
 Architecture = auto
 
 # Pacman won't upgrade packages listed in IgnorePkg and members of IgnoreGroup
@@ -90,4 +89,3 @@ Include = /etc/pacman.d/mirrorlist
 #[custom]
 #SigLevel = Optional TrustAll
 #Server = file:///home/custompkgs
-