diff --git a/.SRCINFO b/.SRCINFO
index f3b35c83dc174..a635649c18e86 100644
--- a/.SRCINFO
+++ b/.SRCINFO
@@ -1,6 +1,6 @@
 pkgbase = rstudio-desktop
 	pkgdesc = Open source and enterprise-ready professional software for the R community
-	pkgver = 1.1.463
+	pkgver = 1.2.1335
 	pkgrel = 1
 	url = http://www.rstudio.com/
 	arch = i686
@@ -8,7 +8,7 @@ pkgbase = rstudio-desktop
 	license = AGPL
 	makedepends = cmake>=2.8
 	makedepends = boost>=1.63
-	makedepends = java-environment
+	makedepends = java-environment=8
 	makedepends = apache-ant
 	makedepends = openssl
 	makedepends = pam
@@ -24,20 +24,20 @@ pkgbase = rstudio-desktop
 	depends = qt5-location
 	depends = qt5-sensors
 	depends = qt5-svg
-	depends = qt5-webkit
+	depends = qt5-webengine
 	depends = qt5-xmlpatterns
 	conflicts = rstudio-desktop-bin
 	conflicts = rstudio-desktop-git
 	conflicts = rstudio-desktop-preview-bin
 	noextract = core-dictionaries.zip
-	noextract = gin-1.5.zip
-	source = rstudio-1.1.463.tar.gz::https://github.com/rstudio/rstudio/tarball/v1.1.463
-	source = https://s3.amazonaws.com/rstudio-buildtools/gin-1.5.zip
-	source = https://s3.amazonaws.com/rstudio-buildtools/gwt-2.7.0.zip
+	noextract = gin-2.1.2.zip
+	source = rstudio-1.2.1335.tar.gz::https://github.com/rstudio/rstudio/tarball/v1.2.1335
+	source = https://s3.amazonaws.com/rstudio-buildtools/gin-2.1.2.zip
+	source = https://s3.amazonaws.com/rstudio-buildtools/gwt-2.8.1.zip
 	source = https://s3.amazonaws.com/rstudio-dictionaries/core-dictionaries.zip
-	sha256sums = 13225d7e12bd8e273a10951f121ed117fbfe25f3a7ce12003b3aff7bcc64af44
-	sha256sums = f561f4eb5d5fe1cff95c881e6aed53a86e9f0de8a52863295a8600375f96ab94
-	sha256sums = aa65061b73836190410720bea422eb8e787680d7bc0c2b244ae6c9a0d24747b3
+	sha256sums = 466d547d1330a39138f25ef0a3ac6d2120cbacafdc71843f257e6a48ddc7c5ae
+	sha256sums = b98e704164f54be596779696a3fcd11be5785c9907a99ec535ff6e9525ad5f9a
+	sha256sums = 0b7af89fdadb4ec51cdb400ace94637d6fe9ffa401b168e2c3d372392a00a0a7
 	sha256sums = 4341a9630efb9dcf7f215c324136407f3b3d6003e1c96f2e5e1f9f14d5787494
 
 pkgname = rstudio-desktop
diff --git a/.gitignore b/.gitignore
index 3a6802fd4f708..b21dc96d10522 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,6 @@
 /src/
 /pkg/
+/*.log
 /*.pkg.tar.xz
 /rstudio-*.tar.gz
 /gin-*.zip
diff --git a/PKGBUILD b/PKGBUILD
index 940cf9d745acb..89e4caacac245 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -2,21 +2,27 @@
 # Contributor: Alexsandr Pavlov <kidoz at mail dot ru>
 # Maintainer: Philipp A. <flying-sheep@web.de>
 pkgname=rstudio-desktop
-pkgver=1.1.463
-_gwtver=2.7.0
-_ginver=1.5
+pkgver=1.2.1335
+_gwtver=2.8.1
+_ginver=2.1.2
 _clangver=3.6.1
 pkgrel=1
 pkgdesc="Open source and enterprise-ready professional software for the R community"
 arch=(i686 x86_64)
 url="http://www.rstudio.com/"
 license=(AGPL)
+# TODO: what to remove? extra-x86_64-build says
+# - it doesn’t need mathjax, pandoc, clang, qt5-{sensors,svg,xmlpatterns}
+# - and qt5-{base,declarative,location}, pango, shared-mime-info are auto-included
 depends=(
 	'r>=2.11.1' 'boost-libs>=1.63'
 	pango shared-mime-info mathjax pandoc clang
-	qt5-base qt5-declarative qt5-location qt5-sensors qt5-svg qt5-webkit qt5-xmlpatterns
+	qt5-base qt5-declarative qt5-location qt5-sensors qt5-svg qt5-webengine qt5-xmlpatterns
 )
-makedepends=('cmake>=2.8' 'boost>=1.63' java-environment apache-ant openssl pam)
+# java-environment=8 prevents:
+#    [ERROR] Hint: Check that your module inherits 'com.google.gwt.core.Core'
+#    either directly or indirectly (most often by inheriting module 'com.google.gwt.user.User')
+makedepends=('cmake>=2.8' 'boost>=1.63' 'java-environment=8' apache-ant openssl pam)
 conflicts=(rstudio-desktop-bin rstudio-desktop-git rstudio-desktop-preview-bin)
 source=(
 	"rstudio-$pkgver.tar.gz::https://github.com/rstudio/rstudio/tarball/v$pkgver"
@@ -26,9 +32,9 @@ source=(
 )
 noextract=('core-dictionaries.zip' "gin-$_ginver.zip")
 sha256sums=(
-	'13225d7e12bd8e273a10951f121ed117fbfe25f3a7ce12003b3aff7bcc64af44'
-	'f561f4eb5d5fe1cff95c881e6aed53a86e9f0de8a52863295a8600375f96ab94'
-	'aa65061b73836190410720bea422eb8e787680d7bc0c2b244ae6c9a0d24747b3'
+	'466d547d1330a39138f25ef0a3ac6d2120cbacafdc71843f257e6a48ddc7c5ae'
+	'b98e704164f54be596779696a3fcd11be5785c9907a99ec535ff6e9525ad5f9a'
+	'0b7af89fdadb4ec51cdb400ace94637d6fe9ffa401b168e2c3d372392a00a0a7'
 	'4341a9630efb9dcf7f215c324136407f3b3d6003e1c96f2e5e1f9f14d5787494'
 )
 
@@ -78,6 +84,9 @@ build() {
 		bash 'install-packages'
 	)
 	
+	# Prevent java error: “Could not lock User prefs. Lock file access denied.”
+	# Because gwt desperately needs to add a “firstLaunch” entry there…
+	export JAVA_TOOL_OPTIONS="-Djava.util.prefs.userRoot=$srcdir"
 	cmake -DRSTUDIO_TARGET=Desktop \
 		-DCMAKE_BUILD_TYPE=Release \
 		-DQT_QMAKE_EXECUTABLE=/usr/bin/qmake-qt5 \