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see release notes: https://github.com/spesmilo/electrum/blob/master/RELEASE-NOTES

Please do update, as previous versions create signatures with high S values, which are nonstandard now.

Glad to see, busy downloading...

Thanks for the update Thomas

Hmm.. A while back you said that hardware wallets would be supported for Windows in the 2.5 version. Your website states that hardware wallets are *NOT* supported in 2.5. So what? Do I have to wait for 2.6 now?

Thomas,

Just downloaded the stand-alone version of 2.5 but sad to say it does not work.

Firstly, the stand-alone does not work as it should as it creates the folders under the AppData folder on a Windows system which makes the fact that its 'stand-alone' pointless as most of the files are not on the USB drive but on the C drive.

Secondly, I copied the exe file onto my USB drive right where the 2.3.2 version exe resides. I fired up the 2.5 version with the -w option which is supposed to make it work with the folder/data in the same location but it just starts up and then dies and or closes. I first thought it might be due to the file formats being from the 2.3.2 version so I deleted all the files and still nothing.

I then left it to create all the folders/files on the c drive and then copied this to the USB drive and tried the -w option again but again it just starts up and died.

Can somebody please look into this and if possible update the current 2.5 version instead of letting us wait for 2.6 please...

EDIT: Just tested it as mentioned in next post. See there is no support for Trezor. Is this just a glitch and or is there no Trezor support for version 2.5?

Guess the website must just be updated. When I started it up it showed options for hardware wallets. Will test now and report back.

EDIT: Just tested it. Plugged Trezor in but seems like there is no Trezor support. Only came up with an option for Ledger. So there goes version 2.5 for me. Back to 2.3.2, the last proper Electrum version out there at present, for windows at least.

Thanks for the updates ThomasV , It took sometime but I hope it worth it and a lot of things got added or fixed .
Just want to know , how I'am supposed to update my current version guys ? I'am using 2.4.4 at the moment , should I just download and install ? or I unistall the old one , and Install the new one and use the seed ? thanks !

# Release 2.5
 * Low-S values are used in signatures (BIP 62).
 * The Kivy GUI has been merged into master.
 * The Qt GUI supports multiple windows in the same process. When a
   new Electrum instance is started, it checks for an already running
   Electrum process, and connects to it.
 * The network layer uses select(), so all server communication is
   handled by a single thread. Moreover, the synchronizer, verifier,
   and exchange rate plugin now run as separate jobs within the
   networking thread instead of as their own threads.
 * Plugins are revamped, particularly the exchange rate plugin.

might be a dumb question. but I rather be safe...

should I backup anything before updating? I'm using 2.3.2.

If you have a copy of your seed you are okay. Easy to revert back to 2.3.2 should you want to do so.

If you make use of a Trezor then stay on 2.3.2, like me, there is no Trezor support in 2.5. Only support for Ledger it seems.

got it thanks. I don't use Trezor so it shouldn't affect me. gonna update ASAP.

We had to release 2.5 earlier than expected because of the malleability issue (high S value).
I did not have time to address the issues with Windows binaries and trezor.

hi i cannot seem to use any electrum commands in the console e.g. electrum help keeps giving me
>> electrum help
Traceback (most recent call last):
                ^
SyntaxError: invalid syntax

is any one else having issues with the console? i really need use it..

I tested with a HW.1. Although the option is there it asks for additional libraries. So the HW.1 is still not supported.

I have been running a Trezor on Windows with Electrum 2.3.2.  I had previously installed all the necessary software back around version 2.0.  Because of the low-s signature issue I decided I'd better update to 2.5.  Unfortunately, as warned, the windows installer for 2.5 doesn't work with Trezor. I decided I had better try using the source code of 2.5.

To get 2.5 working from source code, all I did was to replace the contents of the electrum software directory with the contents of the eloectrum-2.5.zip distribution.  When I did this, electrum 2.5 popped up.  Even better, because of my previously installed software my Trezor also worked.

There was one minor problem. electrum-2.5.zip has a routine that communicates with the electrum daemon which isn't supported in Windows.  This resulted in an error traceback in the terminal window. I made this go away by editing out the entire routine that was throwing the error.

It is necessary to change the file extension of electrum to electrum.pyw so you can click on it (or use a shortcut to it) so that the program runs without having to type "python electrum" in a command window. Also, there is some fiddling (which I've yet to do) to get the icons correct.

It would sure be nice if there was a working windows version with Trezor support, as this was easy for me, but getting python, python-qt,  python-trezor to work, cython, etc... was a huge pain the first time.

why isn't Trezor supported anymore on the compiled windows version? Why do you have to build it from source to use Trezor?

Because ThomasV is having issues with the binaries so we should wait until he fix them .

What I do not understand is that there is Trezor support in the latest version of Electrum-LTC (version 2.4.3.1) which I believe make use of the same binaries for Trezor.

All versions of Electrum-LTC thus far had support for Trezor without any problems.

Hi Thomas,

Thank you for your work on Electrum, GREAT product!
FYI - in the most current version 2.5.1 it is showing positive for malware using Google's virust website.
The previous version does not show positive.

Thanks,
Howard

had the same issue and error
updated to 2.5.1
and all good now !
 ;D

Is there another bug with 2.5.1? Now refusing to sync regardless of server selected.

I sent a mail to SatoshiLabs in regards to the the fact that we needed to upgrade to the latest version of Electrum and the fact that it, at present, has no Trezor support (Windows version).

Following was part of the reply received:


So those with Trezors can still continue to make use of the older versions of Electrum it seems so I'll stick with the 2.3.2 version I'm running now.

My understanding is that core 0.11.1 will reject transactions with high-S signatures.  These won't be created by Trezor, but if you are running a software wallet with Electrum 2.3.2 you may be creating these signatures and may have problems with your transactions.  In my case, I have one copy of Electrum on my Windows 7 machine and a hardware and a software wallet.  I had to upgrade to 2.5.1 and I had to make Trezor work with the upgraded version. 

If you are comfortable installing software on Windows and familiar with the windows command line, environment variables, etc.  it's not too hard to get Electrum to run on Windows from the source code.  The directions are on https://electrum.org/#download.

It's a little more difficult to get Trezor to work from source code, involving installing Python-Trezor and its dependencies. https://github.com/trezor/python-trezor You can run the python-trezor file helloworld.py test program to see if you have communication from python programs to your Trezor.  If you have electrum running without the Trezor and helloworld.py talking to your Trezor then you should be good to go.

From what they said I understood it as meaning that the signature is generated by the Trezor and not by Electrum so there will not be any problems with the high-S signatures as the Trezor do not create these. So using a Trezor together with an older version of Electrum will not be a problem as its not Electrum generating the signatures but the Trezor instead so there should be no problem with the transactions.

That is my understanding, also.  However, I wanted to use the same installation of Electrum with a different wallet that was not Trezor based.  I needed 2.5.1 for that wallet to work correctly.

ok, here is a windows binary that should work with trezor: https://electrum.org/electrum-trezor-test.exe
please let me know if it works.

(it's a test version, the final one will have keepkey and btchip too)

I'll try it, but first I'll need a signature file, since I don't run unsigned .exe's.

I'll be glad to test a true portable version that does not write to %AppData%

Just tested it with my Trezor and all seems to be working just fine.

One request though, will it be possible to make this exe so that it works from the data files in the folder from where its started? I see it still writes its data to the AppData folder.

Also, I noticed that the account labels is working now as they should. The account names used to revert back to 'Main Account' or Account 1' once you changed their names but this now seems to be sorted out.

Thanks for the effort to get this update out to us.

Awesome! I can't wait for the btchip version!

wohoo. also can't wait for the btchip integration in win binary.

Thank you for testing. The new binaries are available on electrum.org, with signatures

A 'portable' version is also available, separate from 'standalone'.
The portable version stores electrum_data in the local directory.

Checked for updated files about 15 min ago and spotted the updated binaries in the downloads section.

Busy downloading now, will test and post results.

Once again, thanks for the effort to get us all onto the latest version of Electrum  :D

EDIT: Just checked everything quickly and it all seems 100%. Portable version works as it should making use of the data files in the same folder. Trezor working fine.

Thomas,

I installed the portable version 2.5.1 earlier and as posted, everything seemed to be fine.

I tried sending btc to another wallet of mine but was unable to do so. After setting up the transaction when I click on 'Send' and nothing happens. I restarted Electrum again, entered the pin for the Trezor etc.. but same thing, nothing happens when you click on send.

I tried the same transaction on the older 2.3.2 portable version and the transaction went through without any problems. So seems like there is a bug in the 2.5.1 (portable) version.
 

I ran the new 2.5.1 .exe on my Windows 7 system.  It ran my Trezor based wallet and it ran my software wallet.  I also ran this version on my Windows 8 system, testing it with my Trezor and it worked OK.  I did message signing tests and sending tranactions with the Trezor.

Looks good!  Thanks, Thomas!

Which 2.5.1 did you run, the one Thomas posted earlier i.e. the test one or the electrum-2.5.1-portable.exe ?

Just want to check because if it was the portable one then something must be wrong with my setup. Just tried sending from it again and nothing happens when I press on the send button.

Your installation must be corrupted. The true portable 2.5.1 works fine for me and does not save files to %AppData%

I did not say the portable had a bug due it saving files to the AppData folder, not sure where you read that. I posted earlier on that the portable worked just fine in that context.


My problem was with the fact that I could not send any funds, as posted earlier. Have you sent any funds making use of the 2.5.1 portable version? Does it work for you? When I click on 'Send' nothing happens.

I have no problems sending or receiving with Electrum 2.5.1 portable. Clear enough? Try again, delete and reinstall from a fresh download.

modification date 10/23, MD5 DEB41AC7004E6C6C5B514E0C34C68664 electrum-2.5.1-setup.exe

This is a Windows installer, not a portable version.  (I can confirm that it runs on two of my systems using Trezor, but these systems had previously installed, Python Trezor,Cython, Libusb etc... which I did not uninstall, so it is conceivable that these images might not run on a plain vanilla Windows.)

I sent and received funds on my Windows 7 installation using a software wallet and a Trezor wallet. All four combinations worked. Also, I verified that sending funds to a payment protocol request works.

Thanks for the feedback. I have not tried sending again with the portable version, will a little later. If it does not work I'll go for the setup.exe file and see whether that works. Seems like it might just be something on my pc as it works for others so might just have to download it again.

Could possibly also be the older data files. I just dropped the exe into the folder where my 'older' Electrum ran from. Should maybe just clear out everything and start it up in a clean folder so that it can download its own files from scratch.

I think you are confusing the portable version electrum-2.5.1-portable.exe with the Windows installer electrum-2.5.1-setup.exe. Windows installer will store electrum data locally in %appdata% portable does not. Portable version can be installed and run from a USB drive or in an encrypted container and will not write to the host computer.

No, I know the difference between the two, just thought I will try the Windows installer if the portable still did not want to work. Been running the portable since version 1.9.8 from a USB. I however think it might be the 'older' data files as mentioned. Will clear it all out just now and let it download everything again and see if that sorts it out.

EDIT: Not sure what the problem was yesterday when trying to send. Just tried to send quickly before deleting all the files and transaction went through without a problem. So portable 2.5.1. working fine now.

I have been using Electrum 2.3.2 for a long time. I have no issues with it. Because of the "Low-S values", I need to upgrade my Electrum. I downloaded 2.5.2 setup.exe for windows and it failed to start, saying something about "settings are wrong and need to reinstall". I tried 2.5.1 and it's the same.

I found this thread about "Electrum 2.4.4 and higher crushes at start on WinXP SP3 x86":
https://bitcointalk.org/index.php?topic=1219257.0

I also have Electrum on WindowsXP. I believe this is a known problem. There is a solution suggested in the above thread. I could install this "python" and download the python version of Electrum. But this is not I want to do for long term. Is Electrum going to drop support for Windows XP, or this is just a temporary glitch and will be fixed in later versions?

Thanks!

Python is a programming language , and Electrum is written on Python so you will have to download it if you want to get this working , same goes for Multibit HD for example , it's written in Java so you will have to download Java if you want to get it working .

The "electrum-2.5.2-setup.exe" has python files included. Electrum should run right off the bat after installation without the need to install python separately. The same downloaded setup file installs fine on my other Windows 7 computer and not on a Windows XP notebook. That same notebook has been running Electrum from 1.9 to 2.3.2 without problems for a long time. Even Core runs fine on that notebook.

I got this error when I tried to open on Ubuntu 15.10:

$ electrum
"sni-qt/11012" WARN  09:41:06.933 void StatusNotifierItemFactory::connectToSnw() Invalid interface to SNW_SERVICE
QNativeImage: Unable to attach to shared memory segment.
X Error: BadDrawable (invalid Pixmap or Window parameter) 9
  Major opcode: 62 (X_CopyArea)
  Resource id:  0x0
X Error: BadDrawable (invalid Pixmap or Window parameter) 9
  Major opcode: 62 (X_CopyArea)
  Resource id:  0x0
X Error: BadDrawable (invalid Pixmap or Window parameter) 9
  Major opcode: 62 (X_CopyArea)
(...too many lines like this...)

Any ideas?

medUSA then I'm not so sure about it :/ You will get faster answer on Github since it's a technical issue .

What version are you using ? I saw ThomasV post somewhere and the error seems to be the same , he just asked the person to upgrade his wallet to the latest version . (which is 2.5.2 now)

I'm using the latest one. The problem seemed to be related to the Ubuntu upgrade to 15.10.

I tried to run another pyqt to see if the same error happen. It didn't. However, when I tried run electrum after that, it worked! Weird. But it's ok now.

new release today: version 2.5.3
https://github.com/spesmilo/electrum/blob/master/RELEASE-NOTES

Hopefully
will make people more aware of the importance of the seed.

Though I still think it is not enough.
We should have like a pop up window with a big red exclamation mark telling them the importance.

Good job thomas , I just wanted to know , can we give suggestions for electrum and you add them ? Because I already contacted you about few important suggestions before however you never replied to me , so I'm not sure where to post them .

excuse me but how are we supposed to update this electrum sh*t? to uninstall  the old one and download  the new one or.. ?
So I downloaded from https://electrum.org/#download  THAT -> "Install Electrum-2.5.3.zip" and inside there was no .exe file or something like that. Could you please guys explain why is it so complicated and why cannot a man download a file/rar and then run it and then just get into his wallet...
I cannot send anything because of DUST or some other sh*t and I cannot run the new version so... GREAT WALLET thums up !!!! .........

Thanks, I am going to try this update. Hopefully it will work under Windows XP. Will update this thread regardless.

Are you using Windows?

If you want to install the program download the Windows installer: electrum-2.5.3-setup.exe.
The zip file contains the python sources that you would need to run with a local python installation.

I made another release, 2.5.4, that should fix the 'dust' issue.

Thanks for the fast fix.