# Library code changes?
**URL:** https://community.mp3tag.de/t/library-code-changes/49773
**Category:** Support
**Created:** [July 29, 2020, 2:08pm UTC](https://community.mp3tag.de/t/library-code-changes/49773 "2020-07-29T14:08:32Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@mville](https://community.mp3tag.de/u/mville)
#### Post date: [July 29, 2020, 2:08pm UTC](https://community.mp3tag.de/t/library-code-changes/49773/1 "2020-07-29T14:08:32Z")
Have there been any library code changes from v3.01 to v3.02?
Reading directory: Reading tag data ... seems to be taking a lot longer in v3.02.
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### Author:  [@ohrenkino](https://community.mp3tag.de/u/ohrenkino)
#### Post date: [July 29, 2020, 2:20pm UTC](https://community.mp3tag.de/t/library-code-changes/49773/2 "2020-07-29T14:20:19Z")
Have a look at this thread:
> [@Windows Defender - Speed of loading files in MP3Tag](https://community.mp3tag.de/t/windows-defender-speed-of-loading-files-in-mp3tag/47784):
>
> In the past I already noticed that the antivirus-software of windows-defender slows down the loading speed of files in MP3Tag dramatically: At this time my third-party antivirus-software (Avast) had been gotten accidently deactivated and windows-defender activated. This time I wanted to give windows-defender a second chance, deinstalled Avast and activated the defender. The same happened as before: Mp3Tag became very slow in loading files in spite of the activated library-function. I tes…
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### Author:  [@mville](https://community.mp3tag.de/u/mville)
#### Post date: [July 29, 2020, 2:29pm UTC](https://community.mp3tag.de/t/library-code-changes/49773/4 "2020-07-29T14:29:18Z")
> [@ohrenkino](#):
>
> Have a look at this thread:
> [Windows Defender - Speed of loading files in MP3Tag](https://community.mp3tag.de/t/windows-defender-speed-of-loading-files-in-mp3tag/47784)
That's it, excellent thank you. I uninstalled Avast recently and Windows Defender kicked in.
Disabled Windows Defender Real-time protection and Reading directory: Reading tag data is back to hi-speed reading.
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### Author:  [@system](https://community.mp3tag.de/u/system)
#### Post date: [February 9, 2026, 12:28pm UTC](https://community.mp3tag.de/t/library-code-changes/49773/5 "2026-02-09T12:28:44Z")