diff --git a/CHANGELOG b/CHANGELOG
index 2eec1d6a50..0960a96a6f 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -43,6 +43,10 @@ v 7.10.0 (unreleased)
   - Prevent sending empty messages to HipChat (Chulki Lee)
   - Improve UI for mobile phones on dashboard and project pages
   - Add room notification and message color option for HipChat
+  - Allow to use non-ASCII letters and dashes in project and namespace name. (Jakub Jirutka)
+  - Add footnotes support to Markdown (Guillaume Delbergue)
+  - Add current_sign_in_at to UserFull REST api.
+  - Make Sidekiq MemoryKiller shutdown signal configurable
 
 v 7.10.2
   - Fix CI links on MR page
diff --git a/db/migrate/20150425164646_gitlab_change_collation_for_tag_names.acts_as_taggable_on_engine.rb b/db/migrate/20150425164646_gitlab_change_collation_for_tag_names.acts_as_taggable_on_engine.rb
new file mode 100644
index 0000000000..281c88d2a7
--- /dev/null
+++ b/db/migrate/20150425164646_gitlab_change_collation_for_tag_names.acts_as_taggable_on_engine.rb
@@ -0,0 +1,10 @@
+# This migration is a duplicate of 20150425164651_change_collation_for_tag_names.acts_as_taggable_on_engine.rb
+# It shold be applied before the index additions to ensure that `name` is case sensitive.
+
+class GitlabChangeCollationForTagNames < ActiveRecord::Migration
+  def up
+    if ActsAsTaggableOn::Utils.using_mysql?
+      execute("ALTER TABLE tags MODIFY name varchar(255) CHARACTER SET utf8 COLLATE utf8_bin;")
+    end
+  end
+end
diff --git a/db/migrate/20150425164647_remove_duplicate_tags.rb b/db/migrate/20150425164647_remove_duplicate_tags.rb
new file mode 100644
index 0000000000..1a9152cb96
--- /dev/null
+++ b/db/migrate/20150425164647_remove_duplicate_tags.rb
@@ -0,0 +1,16 @@
+class RemoveDuplicateTags < ActiveRecord::Migration
+  def up
+    select_all("SELECT name, COUNT(id) as cnt FROM tags GROUP BY name HAVING COUNT(id) > 1").each do |tag|
+      duplicate_ids = select_all("SELECT id FROM tags WHERE name = '#{tag["name"]}'").map{|tag| tag["id"]}
+      origin_tag_id = duplicate_ids.first
+      duplicate_ids.delete origin_tag_id
+
+      execute("UPDATE taggings SET tag_id = #{origin_tag_id} WHERE tag_id IN(#{duplicate_ids.join(",")})")
+      execute("DELETE FROM tags WHERE id IN(#{duplicate_ids.join(",")})")
+    end
+  end
+
+  def down
+    
+  end
+end
diff --git a/db/migrate/20150425164648_add_missing_unique_indices.acts_as_taggable_on_engine.rb b/db/migrate/20150425164648_add_missing_unique_indices.acts_as_taggable_on_engine.rb
index 4ca676f6c7..c1b7868151 100644
--- a/db/migrate/20150425164648_add_missing_unique_indices.acts_as_taggable_on_engine.rb
+++ b/db/migrate/20150425164648_add_missing_unique_indices.acts_as_taggable_on_engine.rb
@@ -3,8 +3,15 @@ class AddMissingUniqueIndices < ActiveRecord::Migration
   def self.up
     add_index :tags, :name, unique: true
 
-    remove_index :taggings, :tag_id
-    remove_index :taggings, [:taggable_id, :taggable_type, :context]
+    # pre-GitLab v6.7.0 may not have these indices since there were no
+    # migrations for them
+    if index_exists?(:taggings, :tag_id)
+      remove_index :taggings, :tag_id
+    end
+
+    if index_exists?(:taggings, [:taggable_id, :taggable_type, :context])
+      remove_index :taggings, [:taggable_id, :taggable_type, :context]
+    end
     add_index :taggings,
               [:tag_id, :taggable_id, :taggable_type, :context, :tagger_id, :tagger_type],
               unique: true, name: 'taggings_idx'
diff --git a/doc/operations/sidekiq_memory_killer.md b/doc/operations/sidekiq_memory_killer.md
index 867b01b0d5..811c2192a1 100644
--- a/doc/operations/sidekiq_memory_killer.md
+++ b/doc/operations/sidekiq_memory_killer.md
@@ -36,3 +36,5 @@ The MemoryKiller is controlled using environment variables.
   Existing jobs get 30 seconds to finish. After that, the MemoryKiller tells
   Sidekiq to shut down, and an external supervision mechanism (e.g. Runit) must
   restart Sidekiq.
+- `SIDEKIQ_MEMORY_KILLER_SHUTDOWN_SIGNAL`: defaults to 'SIGTERM'. The name of
+  the final signal sent to the Sidekiq process when we want it to shut down.
diff --git a/lib/gitlab/sidekiq_middleware/memory_killer.rb b/lib/gitlab/sidekiq_middleware/memory_killer.rb
index 0f2db50e98..f33b2dedf4 100644
--- a/lib/gitlab/sidekiq_middleware/memory_killer.rb
+++ b/lib/gitlab/sidekiq_middleware/memory_killer.rb
@@ -7,6 +7,7 @@ module Gitlab
       GRACE_TIME = (ENV['SIDEKIQ_MEMORY_KILLER_GRACE_TIME'] || 15 * 60).to_s.to_i
       # Wait 30 seconds for running jobs to finish during graceful shutdown
       SHUTDOWN_WAIT = (ENV['SIDEKIQ_MEMORY_KILLER_SHUTDOWN_WAIT'] || 30).to_s.to_i
+      SHUTDOWN_SIGNAL = (ENV['SIDEKIQ_MEMORY_KILLER_SHUTDOWN_SIGNAL'] || 'SIGTERM').to_s
 
       # Create a mutex used to ensure there will be only one thread waiting to
       # shut Sidekiq down
@@ -24,19 +25,19 @@ module Gitlab
 
           Sidekiq.logger.warn "current RSS #{current_rss} exceeds maximum RSS "\
             "#{MAX_RSS}"
-          Sidekiq.logger.warn "spawned thread that will shut down PID "\
-            "#{Process.pid} in #{GRACE_TIME} seconds"
+          Sidekiq.logger.warn "this thread will shut down PID #{Process.pid} "\
+            "in #{GRACE_TIME} seconds"
           sleep(GRACE_TIME)
 
           Sidekiq.logger.warn "sending SIGUSR1 to PID #{Process.pid}"
           Process.kill('SIGUSR1', Process.pid)
 
           Sidekiq.logger.warn "waiting #{SHUTDOWN_WAIT} seconds before sending "\
-            "SIGTERM to PID #{Process.pid}"
+            "#{SHUTDOWN_SIGNAL} to PID #{Process.pid}"
           sleep(SHUTDOWN_WAIT)
 
-          Sidekiq.logger.warn "sending SIGTERM to PID #{Process.pid}"
-          Process.kill('SIGTERM', Process.pid)
+          Sidekiq.logger.warn "sending #{SHUTDOWN_SIGNAL} to PID #{Process.pid}"
+          Process.kill(SHUTDOWN_SIGNAL, Process.pid)
         end
       end