--- libgig/trunk/README	2019/02/20 19:12:49	3476
+++ libgig/trunk/README	2021/05/09 10:37:39	3878
@@ -61,6 +61,12 @@
 
 Requirements
 ============
+
+  All systems
+  -----------
+
+  Since libgig 4.3.0 you need at least a C++11 compliant compiler.
+
   POSIX systems (e.g. Linux, macOS):
   ---------------------------------
 
@@ -94,11 +100,23 @@
   ------------------------
 
   libgig was written to compile for any operating system, using standard C
-  library functions. However the latest versions of libgig lack a portable
-  implementation of one tiny method called RIFF::File::ResizeFile(). So you
-  would either have to add native OS API calls for that particular method,
-  that is dependant to your OS, or you have to add a portable
-  implementation. No matter which way you choose, please let us know! :)
+  library functions. However there are some OS dependent requirements:
+
+  * Since libgig 3.0.0 an OS dependent implementation for a tiny method called
+    RIFF::File::ResizeFile() is required. So you would either have to add
+    native OS API calls for that particular method, that is dependant to your
+    OS, or you have to add a portable implementation. No matter which way you
+    choose, please let us know! :)
+
+  * Since libgig 4.3.0 presence of some UUID generating function is required to
+    be provided by the underlying system. This was an optional feature in
+    previous versions of libgig for many years, its absence only meant that you
+    were unable to load gig files created/modified by libgig to be accepted by
+    Tascam's original GigaStudio studio software, did not mean any restriction
+    for being used with LinuxSampler though. This has changed in the meantime,
+    so this is now a hard build requirement, as you would potentially encounter
+    misbehaviours now even if you stay entirely in the Linux eco system if UUIDs
+    were missing in gig files.
 
 Compiling for Linux
 ===================