diff --git a/models/repo.go b/models/repo.go
index ac3443f8953b..7945cb309d34 100644
--- a/models/repo.go
+++ b/models/repo.go
@@ -2810,3 +2810,19 @@ func (repo *Repository) GetOriginalURLHostname() string {
 
 	return u.Host
 }
+
+// GetTreePathLock returns LSF lock for the treePath
+func (repo *Repository) GetTreePathLock(treePath string) (*LFSLock, error) {
+	if setting.LFS.StartServer {
+		locks, err := GetLFSLockByRepoID(repo.ID)
+		if err != nil {
+			return nil, err
+		}
+		for _, lock := range locks {
+			if lock.Path == treePath {
+				return lock, nil
+			}
+		}
+	}
+	return nil, nil
+}
diff --git a/options/locale/locale_en-US.ini b/options/locale/locale_en-US.ini
index 4210ed1212a8..4d1af69db53f 100644
--- a/options/locale/locale_en-US.ini
+++ b/options/locale/locale_en-US.ini
@@ -703,6 +703,7 @@ editor.preview_changes = Preview Changes
 editor.cannot_edit_lfs_files = LFS files cannot be edited in the web interface.
 editor.cannot_edit_non_text_files = Binary files cannot be edited in the web interface.
 editor.edit_this_file = Edit File
+editor.this_file_locked = File is locked
 editor.must_be_on_a_branch = You must be on a branch to make or propose changes to this file.
 editor.fork_before_edit = You must fork this repository to make or propose changes to this file.
 editor.delete_this_file = Delete File
diff --git a/routers/repo/blame.go b/routers/repo/blame.go
index 5578942a9f1a..f5a2a548e360 100644
--- a/routers/repo/blame.go
+++ b/routers/repo/blame.go
@@ -119,8 +119,19 @@ func RefBlame(ctx *context.Context) {
 	ctx.Data["IsBlame"] = true
 
 	if ctx.Repo.CanEnableEditor() {
-		ctx.Data["CanDeleteFile"] = true
-		ctx.Data["DeleteFileTooltip"] = ctx.Tr("repo.editor.delete_this_file")
+		// Check LFS Lock
+		lfsLock, err := ctx.Repo.Repository.GetTreePathLock(ctx.Repo.TreePath)
+		if err != nil {
+			ctx.ServerError("GetTreePathLock", err)
+			return
+		}
+		if lfsLock != nil && lfsLock.OwnerID != ctx.User.ID {
+			ctx.Data["CanDeleteFile"] = false
+			ctx.Data["DeleteFileTooltip"] = ctx.Tr("repo.editor.this_file_locked")
+		} else {
+			ctx.Data["CanDeleteFile"] = true
+			ctx.Data["DeleteFileTooltip"] = ctx.Tr("repo.editor.delete_this_file")
+		}
 	} else if !ctx.Repo.IsViewBranch {
 		ctx.Data["DeleteFileTooltip"] = ctx.Tr("repo.editor.must_be_on_a_branch")
 	} else if !ctx.Repo.CanWrite(models.UnitTypeCode) {
diff --git a/routers/repo/view.go b/routers/repo/view.go
index da6d426de422..8730523d891e 100644
--- a/routers/repo/view.go
+++ b/routers/repo/view.go
@@ -265,6 +265,17 @@ func renderFile(ctx *context.Context, entry *git.TreeEntry, treeLink, rawLink st
 			ctx.Data["RawFileLink"] = fmt.Sprintf("%s%s.git/info/lfs/objects/%s/%s", setting.AppURL, ctx.Repo.Repository.FullName(), meta.Oid, filenameBase64)
 		}
 	}
+	// Check LFS Lock
+	lfsLock, err := ctx.Repo.Repository.GetTreePathLock(ctx.Repo.TreePath)
+	ctx.Data["LFSLock"] = lfsLock
+	if err != nil {
+		ctx.ServerError("GetTreePathLock", err)
+		return
+	}
+	if lfsLock != nil {
+		ctx.Data["LFSLockOwner"] = lfsLock.Owner.DisplayName()
+		ctx.Data["LFSLockHint"] = ctx.Tr("repo.editor.this_file_locked")
+	}
 
 	// Assume file is not editable first.
 	if isLFSFile {
@@ -334,8 +345,13 @@ func renderFile(ctx *context.Context, entry *git.TreeEntry, treeLink, rawLink st
 		}
 		if !isLFSFile {
 			if ctx.Repo.CanEnableEditor() {
-				ctx.Data["CanEditFile"] = true
-				ctx.Data["EditFileTooltip"] = ctx.Tr("repo.editor.edit_this_file")
+				if lfsLock != nil && lfsLock.OwnerID != ctx.User.ID {
+					ctx.Data["CanEditFile"] = false
+					ctx.Data["EditFileTooltip"] = ctx.Tr("repo.editor.this_file_locked")
+				} else {
+					ctx.Data["CanEditFile"] = true
+					ctx.Data["EditFileTooltip"] = ctx.Tr("repo.editor.edit_this_file")
+				}
 			} else if !ctx.Repo.IsViewBranch {
 				ctx.Data["EditFileTooltip"] = ctx.Tr("repo.editor.must_be_on_a_branch")
 			} else if !ctx.Repo.CanWrite(models.UnitTypeCode) {
@@ -368,8 +384,13 @@ func renderFile(ctx *context.Context, entry *git.TreeEntry, treeLink, rawLink st
 	}
 
 	if ctx.Repo.CanEnableEditor() {
-		ctx.Data["CanDeleteFile"] = true
-		ctx.Data["DeleteFileTooltip"] = ctx.Tr("repo.editor.delete_this_file")
+		if lfsLock != nil && lfsLock.OwnerID != ctx.User.ID {
+			ctx.Data["CanDeleteFile"] = false
+			ctx.Data["DeleteFileTooltip"] = ctx.Tr("repo.editor.this_file_locked")
+		} else {
+			ctx.Data["CanDeleteFile"] = true
+			ctx.Data["DeleteFileTooltip"] = ctx.Tr("repo.editor.delete_this_file")
+		}
 	} else if !ctx.Repo.IsViewBranch {
 		ctx.Data["DeleteFileTooltip"] = ctx.Tr("repo.editor.must_be_on_a_branch")
 	} else if !ctx.Repo.CanWrite(models.UnitTypeCode) {
diff --git a/templates/repo/issue/milestone_issues.tmpl b/templates/repo/issue/milestone_issues.tmpl
index 889cd2c2f671..b347ad90e4cd 100644
--- a/templates/repo/issue/milestone_issues.tmpl
+++ b/templates/repo/issue/milestone_issues.tmpl
@@ -50,17 +50,18 @@
 				</div>
 			</div>
 			<div class="ten wide right aligned column">
-				<div class="ui secondary filter stackable menu">
+				<div class="ui secondary filter stackable menu labels">
 					<!-- Label -->
-					<div class="ui {{if not .Labels}}disabled{{end}} dropdown jump item" style="margin-left: auto">
+					<div class="ui {{if not .Labels}}disabled{{end}} dropdown jump item label-filter" style="margin-left: auto">
 						<span class="text">
 							{{.i18n.Tr "repo.issues.filter_label"}}
 							<i class="dropdown icon"></i>
 						</span>
 						<div class="menu">
+							<span class="info">{{.i18n.Tr "repo.issues.filter_label_exclude" | Safe}}</span>
 							<a class="item" href="{{$.Link}}?q={{$.Keyword}}&type={{$.ViewType}}&sort={{$.SortType}}&state={{$.State}}&assignee={{$.AssigneeID}}">{{.i18n.Tr "repo.issues.filter_label_no_select"}}</a>
 							{{range .Labels}}
-								<a class="item has-emoji" href="{{$.Link}}?q={{$.Keyword}}&type={{$.ViewType}}&sort={{$.SortType}}&state={{$.State}}&labels={{.ID}}&assignee={{$.AssigneeID}}"><span class="octicon {{if eq $.SelectLabels .ID}}octicon-check{{end}}"></span><span class="label color" style="background-color: {{.Color}}"></span> {{.Name}}</a>
+								<a class="item has-emoji label-filter-item" href="{{$.Link}}?q={{$.Keyword}}&type={{$.ViewType}}&sort={{$.SortType}}&state={{$.State}}&labels={{.ID}}&assignee={{$.AssigneeID}}" data-label-id="{{.ID}}"><span class="octicon {{if .IsExcluded}}octicon-circle-slash{{else if eq $.SelectLabels .ID}}octicon-check{{end}}"></span><span class="label color" style="background-color: {{.Color}}"></span> {{.Name}}</a>
 							{{end}}
 						</div>
 					</div>
diff --git a/templates/repo/view_file.tmpl b/templates/repo/view_file.tmpl
index 616ca256502e..f95076272ec3 100644
--- a/templates/repo/view_file.tmpl
+++ b/templates/repo/view_file.tmpl
@@ -16,6 +16,12 @@
 							{{FileSize .FileSize}}{{if .IsLFSFile}} ({{.i18n.Tr "repo.stored_lfs"}}){{end}}
 						</div>
 					{{end}}
+					{{if .LFSLock}}
+						<div class="file-info-entry">
+							<i class="fa fa-lock poping up disabled" data-content="{{.LFSLockHint}}" data-position="bottom center" data-variation="tiny inverted"></i>
+							<a href="{{AppSubUrl}}/{{.LFSLock.Owner.Name}}">{{.LFSLockOwner}}</a>
+						</div>
+					{{end}}
 				</div>
 			{{end}}
 		</div>