diff --git a/glib-2.27.4.tar.bz2 b/glib-2.27.4.tar.bz2
deleted file mode 100644
index c669f0b..0000000
--- a/glib-2.27.4.tar.bz2
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:71367cbf45998f736d7998282bc62fdefe13544a2c8ca523d9e5e9cc212758e6
-size 6876218
diff --git a/glib-2.27.91.tar.bz2 b/glib-2.27.91.tar.bz2
new file mode 100644
index 0000000..bc88260
--- /dev/null
+++ b/glib-2.27.91.tar.bz2
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:9786cedb66b4913caac2297550277b6585da7f9f30ade5717725b5262fb5cbeb
+size 6934447
diff --git a/glib2.changes b/glib2.changes
index 6cf2f9c..f77ad27 100644
--- a/glib2.changes
+++ b/glib2.changes
@@ -1,3 +1,71 @@
+-------------------------------------------------------------------
+Fri Jan 14 10:36:01 CET 2011 - vuntz@opensuse.org
+
+- Update to version 2.27.91:
+  + Bugs fixed: bgo#638838, bgo#638894, bgo#639064, bgo#639084,
+    bgo#639177.
+  + Updated translations.
+- Drop glib2-fix-panel-crash.patch: fixed upstream.
+
+-------------------------------------------------------------------
+Sat Jan  8 09:53:23 CET 2011 - vuntz@opensuse.org
+
+- Add glib2-fix-panel-crash.patch, taken from git: this fixes a
+  crash in gnome-panel.
+
+-------------------------------------------------------------------
+Fri Jan  7 17:29:01 CET 2011 - vuntz@opensuse.org
+
+- Update to version 2.27.90:
+  + Test reports created by gtester-report can now include revision
+    information.
+  + The g_desktop_app_info_launch_* family of functions now emit a
+    DBus signal when an application is launched. Additionally,
+    there is a new variant
+    g_desktop_app_info_launch_uris_as_manager(), which gives more
+    control over the launched process.
+  + The memory and null GSettings backends are now available as
+    public API.
+  + g_get_locale_variants() is a new function that returns a list
+    of variants of a locale identifier.
+  + Bugs fixed: bgo#587898, bgo#606960, bgo#631980, bgo#634569,
+    bgo#635998, bgo#636806, bgo#637262, bgo#637544, bgo#637720,
+    bgo#637738, bgo#637759, bgo#637852, bgo#637858, bgo#638349.
+  + Updated translations.
+
+-------------------------------------------------------------------
+Tue Dec 21 13:31:38 CET 2010 - vuntz@opensuse.org
+
+- Update to version 2.27.5:
+  + Network support:
+    - Add g_tls_certificate_verify() to verify a certificate
+    - Add GTlsConnection:use-system-certdb
+    - Other TLS api additions
+  + GIO:
+    - Add g_io_stream_splice_async()/_finish() to splice two
+      iostreams
+    - Add g_emblemed_icon_clear_emblems() and make GEmblemedIcon
+      derivable
+    - Remove GPeriodic; it did not receive the necessary review and
+      integration work to declare it stable
+  + GSequence:
+    - New methods g_sequence_lookup() and g_sequence_lookup_iter()
+  + Bugs fixed: bgo#617254, bgo#632544, bgo#633350, bgo#634583,
+    bgo#635007, bgo#635626, bgo#636100, bgo#636305, bgo#636311,
+    bgo#636351, bgo#636387, bgo#636673, bgo#637147, bgo#637171,
+    bgo#637237.
+  + Updated translations.
+
+-------------------------------------------------------------------
+Fri Dec 10 12:53:06 UTC 2010 - fcrozat@novell.com
+
+- Add support for source service checkout, with %BUILD_FROM_VCS:
+ + Add git-core and gtk-doc BuildRequires.
+ + Add call to ./autogen.sh.
+ + Enforce gtk-doc html generation by passing --enable-gtk-doc to
+   configure.
+ + Build ChangeLog since we ship it.
+
 -------------------------------------------------------------------
 Mon Dec 6 21:03:22 UTC 2010 - awafaa@opensuse.org
 
diff --git a/glib2.spec b/glib2.spec
index b3d242d..21dd9d8 100644
--- a/glib2.spec
+++ b/glib2.spec
@@ -1,5 +1,5 @@
 #
-# spec file for package glib2 (Version 2.27.4)
+# spec file for package glib2 (Version 2.27.91)
 #
 # Copyright (c) 2010 SUSE LINUX Products GmbH, Nuernberg, Germany.
 #
@@ -21,7 +21,7 @@
 
 Name:           glib2
 %define _name glib
-Version:        2.27.4
+Version:        2.27.91
 Release:        1
 # FIXME: change zlib-devel to pkgconfig(zlib) once we have a recent enough version of zlib
 # FIXME: find out if tapsets should really be in devel package or in main package
@@ -61,6 +61,12 @@ BuildRequires:  systemtap-sdt-devel
 BuildRequires:  translation-update-upstream
 BuildRequires:  zlib-devel
 BuildRequires:  pkgconfig(libpcre)
+%if 0%{?BUILD_FROM_VCS}
+# It's important to keep those BuildRequires inside
+# BUILD_FROM_VCS to avoid build loops in Factory
+BuildRequires:  git-core
+BuildRequires:  gtk-doc
+%endif
 # For temporary %%posttrans script only.
 PreReq:         coreutils
 PreReq:         /bin/sed
@@ -247,6 +253,9 @@ cp -a %{S:4} gnome_defaults.conf
 if ! test -f %{_datadir}/aclocal/gtk-doc.m4 ; then
     cp -a %{S:6} m4macros/
 fi
+%if 0%{?BUILD_FROM_VCS}
+NOCONFIGURE=1 ./autogen.sh
+%endif
 
 %build
 %configure \
@@ -255,9 +264,15 @@ fi
     --with-pcre=system \
 %if 0%{?with_systemtap}
     --enable-systemtap \
+%endif
+%if 0%{?BUILD_FROM_VCS}
+    --enable-gtk-doc \
 %endif
     --with-runtime-libdir=../../%{_lib}
 %{__make} %{?_smp_mflags}
+%if 0%{?BUILD_FROM_VCS}
+%{__make} ChangeLog
+%endif
 
 %check
 # make check does not work on x86_64. See http://bugzilla.gnome.org/show_bug.cgi?id=554969