# QA/FAQ

< QA
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### How can I eliminate confidential data from a sample document?

To protect your personal/work information before sharing a document with the QA Team via email or a bug report, make a copy of the document and remove from the copy any confidential information and, ideally, anything that is not relevant to the bug investigation. Share the copy, not the original:

### How do I report a LibreOffice bug?

If you believe to have found a bug in LibreOffice, please follow the instructions here:

### Are nightly builds available?

Yes, we call them Daily Builds. Please do run, test and torture those daily builds. Reporting bugs for those builds will be most helpful and welcome!

### How do I check whether a given (e.g. daily) build contains a specific commit?

First, get the commit ID from which the build was built: It can be seen in the "about" dialog, where it is called "Build ID".

Alternatively, the daily build directory contains a _buildinfo.txt file containing lines like:

tinderbox: git sha1s
core:99eee227ac5a96a2657e26d64b8fbf228fd10bf2


In this case, the commit ID is the hexadecimal number (string of digits and letters between a and f) after "core:".

As an example, we will use 99eee227ac5a96a2657e26d64b8fbf228fd10bf2 as the revision of the build. You want to see if commit 10777b37536be16c6d2e167b59e9e31e37ba3517 is included in the build. It can, for example, be a commit that claims to fix a bug, and you want to verify that.

1. Go to the LibreOffice core repository browser.
2. In the search area (upper right), choose "range" and enter: CHECKCOMMITID..BUILDCOMMITID, replacing CHECKCOMMITID and BUILDCOMMITID by the respective values. That is: the commit ID you want to check, then two dots, then the commit ID of the build. In our example, enter "10777b37536be16c6d2e167b59e9e31e37ba3517..99eee227ac5a96a2657e26d64b8fbf228fd10bf2".
3. Click "search".
4. If the result is not empty (it lists a few commits), then the given build contains the given commit. If the result is empty, then the given build does not contain the given commit.

### What is "bibisecting"?

Bibisect is a nifty Git-based tool we use to track down when a bug was first introduced into LibreOffice. For more information (mostly of a technical nature), please see the page QA/HowToBibisect.