diff --git a/poky/documentation/ref-manual/ref-variables.xml b/poky/documentation/ref-manual/ref-variables.xml
index b44fdcb..9ebe72c 100644
--- a/poky/documentation/ref-manual/ref-variables.xml
+++ b/poky/documentation/ref-manual/ref-variables.xml
@@ -6638,7 +6638,6 @@
      cpio.lzma
      cpio.xz
      cramfs
-     elf
      ext2
      ext2.bz2
      ext2.gz
@@ -6662,6 +6661,7 @@
      tar.gz
      tar.lz4
      tar.xz
+     tar.zst
      ubi
      ubifs
      wic
@@ -10292,28 +10292,6 @@
             </glossdef>
         </glossentry>
 
-        <glossentry id='var-PACKAGE_GROUP'><glossterm>PACKAGE_GROUP</glossterm>
-            <info>
-                PACKAGE_GROUP[doc] = "Defines one or more packages to include in an image when a specific item is included in IMAGE_FEATURES."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-<!--                <para role="glossdeffirst"><imagedata fileref="figures/define-generic.png" /> -->
-                    The <filename>PACKAGE_GROUP</filename> variable has been
-                    renamed to
-                    <link linkend='var-FEATURE_PACKAGES'><filename>FEATURE_PACKAGES</filename></link>.
-                    See the variable description for
-                    <filename>FEATURE_PACKAGES</filename> for information.
-                </para>
-
-                <para>
-                    If if you use the <filename>PACKAGE_GROUP</filename>
-                    variable, the OpenEmbedded build system issues a warning
-                    message.
-                </para>
-            </glossdef>
-        </glossentry>
-
         <glossentry id='var-PACKAGE_INSTALL'><glossterm>PACKAGE_INSTALL</glossterm>
             <info>
                 PACKAGE_INSTALL[doc] = "List of the packages to be installed into the image. The variable is generally not user-defined and uses IMAGE_INSTALL as part of the list."
@@ -14033,7 +14011,7 @@
                 <para>
                     When pointing to sstate build artifacts on another machine
                     that uses a different GCC version for native builds,
-                    you must configure <filename>SSTATE_MIRROR</filename>
+                    you must configure <filename>SSTATE_MIRRORS</filename>
                     with a regular expression that maps local search paths
                     to server paths.
                     The paths need to take into account