at the same time, newly release API: 2.12.40 Client: 2.45.46 is login error. old release is success.

The new release and the old release using the same username and password.

====================================================================
05:06:59.231 ERROR com.dukascopy.api.impl.connect.AuthorizationClient - Unauthorized
HttpServerResponse [response=Unauthorized, responseCode=401, headerFields={Transfer-Encoding=[chunked], null=[HTTP/1.1 401 Unauthorized], CF-RAY=[2b20450e315b2822-SJC], Server=[cloudflare-nginx], Connection=[keep-alive], Pragma=[no-cache], Last-Modified=[Sun, 12 Jun 2016 21:06:59 GMT], StatusCode=[401], Date=[Sun, 12 Jun 2016 21:07:02 GMT], StatusMessage=[401: Auth failed], Cache-Control=[no-cache, must-revalidate, no-store, max-age=0], Set-Cookie=[__cfduid=dd1e3ad4d2be95281b1f23b5132fb51ce1465765618; expires=Mon, 12-Jun-17 21:06:58 GMT; path=/; domain=.dukascopy.com; HttpOnly], Expires=[Thu, 01 Jan 1970 00:00:00 GMT], Content-Type=[text/html;charset=UTF-8]}]
at com.dukascopy.auth.client.http.HttpSRPClientProtocol.performStep1(HttpSRPClientProtocol.java:197)
at com.dukascopy.auth.client.SRPAuthClient.step1(SRPAuthClient.java:205)
at com.dukascopy.auth.client.SRPAuthClient.authenticate(SRPAuthClient.java:57)
at com.dukascopy.api.impl.connect.AuthorizationClient.getAPIsAndTicketUsingLogin_SRP6(AuthorizationClient.java:692)
at com.dukascopy.api.impl.connect.DCClientImpl.authenticate(DCClientImpl.java:541)
at com.dukascopy.api.impl.connect.DCClientImpl.connect(DCClientImpl.java:313)
at JDukascopy.DukascopyAccountArray.DukascopyAccount.ServerDukascopyAccount.loginDialog(ServerDukascopyAccount.java:455)
at JDukascopy.DukascopyAccountArray.DukascopyAccount.ServerDukascopyAccount.startConnectBody(ServerDukascopyAccount.java:402)
at JDukascopy.DukascopyAccountArray.DukascopyAccount.ServerDukascopyAccount.startConnect(ServerDukascopyAccount.java:375)
at JDukascopy.DukascopyFrame.DukascopyFrameCommand.DukascopyFrameCommand$1.myactionPerformed(DukascopyFrameCommand.java:92)
at JSoftware.Frame.Command.CMenu.MyAction$1.myrun(MyAction.java:197)
at JSoftware.Tool.MyThread.MyRunnable.run(MyRunnable.java:31)
at java.lang.Thread.run(Thread.java:745)

2016.06.12 21:06:59 INFOm - loginDialog(), Exception error. No login.- Incorrect username or password-- ERRORm --JDukascopy.DukascopyAccountArray.DukascopyAccount.DukascopyAccount -- com.dukascopy.api.system.JFAuthenticationException: Incorrect username or password --
com.dukascopy.api.impl.connect.DCClientImpl.authenticate(DCClientImpl.java:587)
com.dukascopy.api.impl.connect.DCClientImpl.connect(DCClientImpl.java:313)
JDukascopy.DukascopyAccountArray.DukascopyAccount.ServerDukascopyAccount.loginDialog(ServerDukascopyAccount.java:455)
JDukascopy.DukascopyAccountArray.DukascopyAccount.ServerDukascopyAccount.startConnectBody(ServerDukascopyAccount.java:402)
JDukascopy.DukascopyAccountArray.DukascopyAccount.ServerDukascopyAccount.startConnect(ServerDukascopyAccount.java:375)
JDukascopy.DukascopyFrame.DukascopyFrameCommand.DukascopyFrameCommand$1.myactionPerformed(DukascopyFrameCommand.java:92)
JSoftware.Frame.Command.CMenu.MyAction$1.myrun(MyAction.java:197)
JSoftware.Tool.MyThread.MyRunnable.run(MyRunnable.java:31)
java.lang.Thread.run(Thread.java:745)

Please give example of code that would reproduce this bug.

sorry,the usename was wrong. that login is ok.