diff --git a/winsup/doc/faq-using.xml b/winsup/doc/faq-using.xml
index b6b152e4e..498315896 100644
--- a/winsup/doc/faq-using.xml
+++ b/winsup/doc/faq-using.xml
@@ -1419,4 +1419,65 @@ such as virtual memory paging and file caching.
difficult to make fork() work reliably.
+
+
+ How do I fix find_fast_cwd warnings?
+
+ Older Cygwin releases asked users to report problems to the mailing
+ list with the message:
+
+ find_fast_cwd: WARNING: Couldn't compute FAST_CWD pointer. Please report
+ this problem to the public mailing list
+
+ cygwin@cygwin.com
+
+ Recent Cygwin releases changed this to the message:
+
+ This typically occurs if you're using an older Cygwin version on a newer Windows.
+ Please update to the latest available Cygwin version from
+
+ https://cygwin.com/.
+ If the problem persists, please see
+
+ https://cygwin.com/problems.html.
+
+ This happens when the Cygwin release you installed can not find out
+ how to get your current directory from the Windows release you are
+ using.
+ Unfortunately some projects and products still distribute older
+ Cygwin releases which do not support newer Windows releases, instead of
+ installing the current release from the Cygwin project.
+ They also may not provide any obvious way to keep the Cygwin packages
+ their application uses up to date with fixes for security issues and
+ upgrades.
+ The fix is simply downloading and running Cygwin Setup, following the
+ instructions in the Internet Setup section of
+
+ Setting Up Cygwin in the Cygwin User's Guide.
+ When running Setup, you should not change most of the values
+ presented, just select the Next button in most
+ cases, as you already have a Cygwin release installed and only want to
+ upgrade your current installation.
+ You should make your own selection if the internet connection to your
+ system requires a proxy; and you must always pick an up to date Cygwin
+ download (mirror) site, preferably the site nearest to your system for
+ faster downloads, as shown with more details to help you choose on the
+
+ Mirror Sites web page.
+ Cygwin Setup will download and apply updates to all packages required
+ for Cygwin itself and installed applications.
+ Any problems with applying updates, or the application after updates,
+ should be reported to the project or product vendor for follow up
+ action.
+ As Cygwin is a volunteer project, and we can not provide support for
+ older releases installed by projects or products, but would like to be
+ able to follow up to reduce reports of these issues if possible, it
+ would be helpful if you would send us a quick
+
+ email to let us know where you obtained the application
+ which installed the older Cygwin release: whether it was purchased from
+ a vendor or a project downloaded from the Internet, any related web
+ pages, or other details you may have readily available.
+
+