diff --git a/README.md b/README.md
index c1db2a75..91e3e40c 100644
--- a/README.md
+++ b/README.md
@@ -31,7 +31,7 @@ cp /usr/local/etc/onedrive.conf ~/.config/onedrive/config
 
 Available options:
 
-* `client_id` & `client_secret`: application identifiers necessary during the [authentication][2]
+* `client_id`: application identifier necessary for the [authentication][2]
 * `sync_dir`: directory where the files will be synced
 * `skip_file`: any files that match this pattern will be skipped during sync
 * `skip_dir`: any directories that match this pattern will be skipped during sync
diff --git a/onedrive.conf b/onedrive.conf
index e9284bbc..ae7f2282 100644
--- a/onedrive.conf
+++ b/onedrive.conf
@@ -1,5 +1,4 @@
 client_id = "000000004C15842F"
-client_secret = "5vWj5xi6rYZM61X81Z9OyXAmjGhVS6Py"
 sync_dir = "~/OneDrive"
 skip_file = ".*|~*"
 skip_dir = ".*"
diff --git a/src/onedrive.d b/src/onedrive.d
index cf70d61d..25be0b97 100644
--- a/src/onedrive.d
+++ b/src/onedrive.d
@@ -6,7 +6,7 @@ import config;
 
 private immutable {
 	string authUrl = "https://login.live.com/oauth20_authorize.srf";
-	string redirectUrl = "https://login.live.com/oauth20_desktop.srf";
+	string redirectUrl = "https://login.live.com/oauth20_desktop.srf"; // "urn:ietf:wg:oauth:2.0:oob";
 	string tokenUrl = "https://login.live.com/oauth20_token.srf";
 	string itemByIdUrl = "https://api.onedrive.com/v1.0/drive/items/";
 	string itemByPathUrl = "https://api.onedrive.com/v1.0/drive/root:/";
@@ -32,7 +32,7 @@ class OneDriveException: Exception
 
 final class OneDriveApi
 {
-	private string clientId, clientSecret;
+	private string clientId;
 	private string refreshToken, accessToken;
 	private SysTime accessTokenExpiration;
 	/* private */ HTTP http;
@@ -42,7 +42,6 @@ final class OneDriveApi
 	this(Config cfg, bool verbose)
 	{
 		this.clientId = cfg.get("client_id");
-		this.clientSecret = cfg.get("client_secret");
 		http = HTTP();
 		//http.verbose = verbose;
 	}
@@ -50,7 +49,7 @@ final class OneDriveApi
 	void authorize()
 	{
 		import std.stdio, std.regex;
-		string url = authUrl ~ "?client_id=" ~ clientId ~ "&scope=wl.offline_access%20onedrive.readwrite&response_type=code&redirect_uri=" ~ redirectUrl;
+		string url = authUrl ~ "?client_id=" ~ clientId ~ "&scope=onedrive.readwrite%20offline_access&response_type=code&redirect_uri=" ~ redirectUrl;
 		writeln("Authorize this app visiting:\n");
 		writeln(url, "\n");
 
@@ -72,21 +71,22 @@ final class OneDriveApi
 		this.refreshToken = refreshToken;
 	}
 
-	// https://dev.onedrive.com/items/view_changes.htm
+	// https://dev.onedrive.com/items/view_delta.htm
 	JSONValue viewChangesById(const(char)[] id, const(char)[] statusToken)
 	{
 		checkAccessTokenExpired();
-		char[] url = itemByIdUrl ~ id ~ "/view.changes";
+		const(char)[] url = itemByIdUrl ~ id ~ "/view.delta";
+		url ~= "?select=id,name,eTag,cTag,deleted,file,folder,fileSystemInfo,remoteItem,parentReference";
 		if (statusToken) url ~= "?token=" ~ statusToken;
 		return get(url);
 	}
 
-	// https://dev.onedrive.com/items/view_changes.htm
+	// https://dev.onedrive.com/items/view_delta.htm
 	JSONValue viewChangesByPath(const(char)[] path, const(char)[] statusToken)
 	{
 		checkAccessTokenExpired();
-		string url = itemByPathUrl ~ encodeComponent(path) ~ ":/view.changes";
-		url ~= "?select=id,name,eTag,cTag,deleted,file,folder,fileSystemInfo,parentReference";
+		string url = itemByPathUrl ~ encodeComponent(path) ~ ":/view.delta";
+		url ~= "?select=id,name,eTag,cTag,deleted,file,folder,fileSystemInfo,remoteItem,parentReference";
 		if (statusToken) url ~= "&token=" ~ statusToken;
 		return get(url);
 	}
@@ -99,7 +99,7 @@ final class OneDriveApi
 			import std.file;
 			if (exists(saveToPath)) remove(saveToPath);
 		}
-		char[] url = itemByIdUrl ~ id ~ "/content?AVOverride=1";
+		const(char)[] url = itemByIdUrl ~ id ~ "/content";
 		download(url, saveToPath);
 	}
 
@@ -183,15 +183,21 @@ final class OneDriveApi
 
 	private void redeemToken(const(char)[] authCode)
 	{
-		string postData = "client_id=" ~ clientId ~ "&redirect_uri=" ~ redirectUrl ~ "&client_secret=" ~ clientSecret;
-		postData ~= "&code=" ~ authCode ~ "&grant_type=authorization_code";
+		const(char)[] postData =
+			"client_id=" ~ clientId ~
+			"&redirect_uri=" ~ redirectUrl ~
+			"&code=" ~ authCode ~
+			"&grant_type=authorization_code";
 		acquireToken(postData);
 	}
 
 	private void newToken()
 	{
-		string postData = "client_id=" ~ clientId ~ "&redirect_uri=" ~ redirectUrl ~ "&client_secret=" ~ clientSecret;
-		postData ~= "&refresh_token=" ~ refreshToken ~ "&grant_type=refresh_token";
+		string postData =
+			"client_id=" ~ clientId ~
+			"&redirect_uri=" ~ redirectUrl ~
+			"&refresh_token=" ~ refreshToken ~
+			"&grant_type=refresh_token";
 		acquireToken(postData);
 	}
 
diff --git a/src/sync.d b/src/sync.d
index a169d0ab..ed511fc2 100644
--- a/src/sync.d
+++ b/src/sync.d
@@ -95,9 +95,9 @@ final class SyncEngine
 				foreach (item; changes["value"].array) {
 					applyDifference(item);
 				}
-				statusToken = changes["@changes.token"].str;
+				statusToken = changes["@delta.token"].str;
 				onStatusToken(statusToken);
-			} while (changes["@changes.hasMoreChanges"].type == JSON_TYPE.TRUE);
+			} while (("@odata.nextLink" in changes.object) !is null);
 		} catch (ErrnoException e) {
 			throw new SyncException(e.msg, e);
 		} catch (FileException e) {
@@ -146,11 +146,9 @@ final class SyncEngine
 		}
 
 		// compute the path of the item
-		string path;
+		string path = ".";
 		if (parentId) {
 			path = itemdb.computePath(parentId) ~ "/" ~ name;
-		} else {
-			path = ".";
 		}
 
 		ItemType type;
@@ -181,13 +179,13 @@ final class SyncEngine
 		}
 
 		string cTag;
-                try {
-                        cTag = item["cTag"].str;
-                } catch (JSONException e) {
-                        // cTag is not returned if the Item is a folder
-                        // https://dev.onedrive.com/resources/item.htm
-                        cTag = "";
-                }
+		try {
+			cTag = item["cTag"].str;
+		} catch (JSONException e) {
+			// cTag is not returned if the Item is a folder
+			// https://dev.onedrive.com/resources/item.htm
+			cTag = "";
+		}
 
 		string mtime = item["fileSystemInfo"]["lastModifiedDateTime"].str;