Notepad++ 8.8.9 release candidate
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Notepad++ 8.8.9 RC is available here:
https://download.notepad-plus-plus.org/repository/8.x/8.8.9.RC/Notepad++ v8.8.9 new security enhancement, new features, regression fixes & bug-fixes:
- Security Enhancement: verify certificate & signature on update installer. (Implement Notepad++ commit, WinGUp commit)
- Fix corrupted file loading on Windows system using the full UTF-8 code page. (Fix #17234)
- Fix crashing when hashing SHA-256 for large files. (Fix #17243)
- Fix “Select & Find Next” command not working regression. (Fix #17200)
- MSI improvement: Suppress REBOOT & add NOUPDATER option. (Fix #ref1, #ref2)
- Fix Perl Function List causes Notepad++ to freeze on tab switch regression. (Fix #17152)
- Fix context menu truncated regression on localization change. (Fix #17249)
- Add ability to update users’ langs.xml & stylers.xml from model XML files. (Fix #17128)
- Update to Scintilla 5.5.8 & Lexilla 5.4.6. (Update #17191)
- Add feature to sort lines in a document by length. (Fix #15615, #17186)
- Undo & redo enhancement: restore vertical scroll position after undo & redo. (Fix #17194)
- Fix mouse wheel horizontal scrolling amount not respecting Windows setting. (Fix #9480)
- Fix document map regression with keyboard input. (Fix #17224)
- Fix wrong system font scaling on Windows 7. (Fix #17066)
- Update to nlohman json 3.11.3. (Update #15041)
Thank you in advance for your test. The official v8.8.9 release will be available on 9th Dec. (Paris time) if no regressions are found.
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I just installed Notepad++ 8.8.9 RC (Windows 11 Professional 64-bit) 25H2 )OS Build 26200.7309)
The program appears to have installed correctly, at this location: C:\Program Files\Notepad++
When I try to launch it it does not open.
I opened Task Manager, found the Notepad++ process, when I try to check for details it just closed.
If you need any further details let me know.Murray
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P PeterJones forked this topic
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I have the same problem, but with the portable version. In my case, I use the cloud option for local storage of
shortcuts.xml. The problem for me is thatlangs.xmlis not automatically updated fromlangs.model.xml, unlikestylers.xml, which is updated fromstylers.model.xml. In the new versions of both files, the second line is now<NotepadPlus modelDate="20251203">instead of<NotepadPlus>. I updatedlangs.xmlwith the newlangs.model.xmland Notepad++ started successfully. I also tried adding only the new line to the oldlangs.xmland Notepad++ started again. -
@rddim said in Notepad++ 8.8.9 release candidate:
I have the same problem, but with the portable version. In my case, I use the cloud option for local storage of
shortcuts.xml. The problem for me is thatlangs.xmlis not automatically updated fromlangs.model.xml, unlikestylers.xml, which is updated fromstylers.model.xml.I cannot reproduce.
I started with fresh unzips of portable 8.8.8 and 8.8.9. I copied the stylers.xml and langs.xml from 8.8.8 into the 8.8.9 directory (to guarantee they don’t have the modelDate attribute yet – I confirmed that the ones in the 8.8.8 directory did not). I ran the Notepad++ from the 8.8.9 directory, and when it loaded, it updated by stylers.xml and langs.xml – I saw the timestamp change. Then I exited, and repeated that process a few times, and it was 100% reliable.
I then created a directory to store my cloud889 settings, and used the 8.8.9 preferences dialog to set the Cloud directory. When I exited, it had created the stylers.xml and langs.xml with the modelDate attribute. While 8.8.9 was still closed, I copied the 8.8.8 stylers.xml and langs.xml (without the attributes) into the cloud889 directory, and re-ran 8.8.9. It immediately changed the timestamp on the two files in the cloud889 directory, and when I look at them, they have the attributes now.
In the new versions of both files, the second line is now
<NotepadPlus modelDate="20251203">instead of<NotepadPlus>. I updatedlangs.xmlwith the newlangs.model.xmland Notepad++ started successfully. I also tried adding only the new line to the oldlangs.xmland Notepad++ started again.For me, I cannot make Notepad++ not start successfully, whether the active settings directory (whether it’s portable or cloud directory or AppData) has an 8.8.8-style file, whether it has no file, or whether it’s got one that’s already been updated.
update: after posting this, I also tried the same experiment with the
%AppData%versions of langs.xml and stylers.xml: if I deleted those AppData files, then when I launch, installed Notepad++ 8.8.9-RC runs just fine, and when I exit, there are up-to-date versions of the two files in AppData. If I delete those, and copy the two files from portable 8.8.8 (so they don’t have the attributes), when I run the installed Notepad++ v8.8.9-RC, it immediately updates those two files so that they do have the attributes. And if I exit and run again, Notepad++ runs just fine (and doesn’t update the files a second time – the file timestamps don’t change). -
When I try to launch it it does not open.
I cannot reproduce the issue you have by using
https://download.notepad-plus-plus.org/repository/8.x/8.8.9.RC/npp.8.8.9.Installer.x64.exeI opened Task Manager, found the Notepad++ process, when I try to check for details it just closed.
After “killing” the process, can you relaunch Notepad++ now?
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@rddim said in Notepad++ 8.8.9 release candidate:
I have the same problem, but with the portable version. In my case, I use the cloud option for local storage of shortcuts.xml. The problem for me is that langs.xml is not automatically updated from langs.model.xml, unlike stylers.xml, which is updated from stylers.model.xml. In the new versions of both files, the second line is now <NotepadPlus modelDate=“20251203”> instead of <NotepadPlus>. I updated langs.xml with the new langs.model.xml and Notepad++ started successfully. I also tried adding only the new line to the old langs.xml and Notepad++ started again.
I cannot reproduce the issue even made the cloud settings on a USB key and install with or without USB key - in both case Notepad++ is launched and both styles.xml & langs.xml are modified by adding modelDate.
Could you reproduce it and provide us the step-by-step instructions please?
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@donho
First, I re-installed 8.8.8 , here is a screenshot of the installed files:

Notepad+++V8.8.8 runs correctly.
Then I installed 8.8.9, FYI both installs were run as administrator, which my account has.
Here is a screenshot of the installed files:

At this point I cannot launch Notepad++ nor can I find it in Task Manager.
Is there an installation log file showing the files changed or new??Murray
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@Murray-Sobol-1
I produced a video showing the actions of Notepad++ starting and the disappearing in Task Manager.When I try to upload the video, I get this message:
You do not have enough privileges for this action.WTF???
How can I show you the results I am getting if I can not upload a video showing them?? -
@Murray-Sobol-1
Sorry for the inconvenience.
Could you show me the content of folderplugins?
Also, could you provide the config.xml, stylers.xml & langs.xml in%APPDATA%\Notepad++\?