tar extract filters (#3857)

reference/conanfile/methods/source.rst

@@ -43,6 +43,11 @@ A ``source()`` implementation might use the convenient ``get()`` helper, or use
             os.unlink(zip_name)
 
 
+.. important::
+
+    Please read the note in :ref:`conan_tools_files_unzip` regarding Python 3.14 breaking changes and 
+    the new tar archive extract filters.
+
 
 Applying patches to downloaded sources can be done (and should be done) in the ``source()`` method if those patches
 apply to all possible configurations. As explained below, it is not possible to introduce conditionals in the

reference/tools/files/basic.rst

@@ -223,6 +223,15 @@ Use the ``pattern`` argument if you want to filter specific files and paths to d
     unzip(self, "bigfile.zip", pattern="*.txt")
 
 
+.. important::
+
+    In Conan 2.8 ``unzip()`` provides a new ``extract_filter=None`` argument and a new 
+    ``tools.files.unzip:filter`` configuration was added to prepare for future Python 3.14 
+    breaking changes, in which the ``data`` filter for extracting tar archives will be made the default.
+    The recommendation is to start using the ``data`` filter as soon as possible (the conf can be 
+    defined in ``global.conf``, or it can be explicitly added as argument in recipes ``unzip()`` and ``get()``
+    helpers) as that is the current security recommendation while downloading sources from the internet.
+
 
 .. currentmodule:: conan.tools.files.files
 

reference/tools/files/downloads.rst

@@ -11,6 +11,13 @@ conan.tools.files.get()
 .. autofunction:: get
 
 
+.. important::
+
+    ``get()`` calls internally ``unzip()``. 
+    Please read the note in :ref:`conan_tools_files_unzip` regarding Python 3.14 breaking changes and 
+    the new tar archive extract filters.
+
+
 conan.tools.files.ftp_download()
 --------------------------------