NEWS.org: update

NEWS.org

@@ -23,6 +23,12 @@
 
    - After that, either =ninja -C build= or =make= should be enough to rebuild
 
+   - Apparently in some setups (e.g. some MacOS build), a build error may
+     happen related to ~guile~. If so, this can be avoid by build with
+#+begin_example
+     ./autogen.sh -Dguile=disabled
+#+end_example
+
    - Before installing, it is recommended that you *remove* any older versions of
  ~mu~ and especially ~mu4e~, since they may conflict with the newer ones.
 
@@ -66,6 +72,10 @@
    - message sexps are now cached in the store, which makes delivering
      sexp-based search results (as used by ~mu4e~) much faster.
 
+   - Windows/MSYS support is deprecated; it doesn't work well (if at all) and
+     there's currently not sufficient developer interest/expertise to change
+     this.
+
 *** mu4e
 
    - the old mu4e-view is *gone*; only the gnus-based one remains. This allowed