diff --git a/cc.notes b/cc.notes
index a774a89..06b3267 100644
--- a/cc.notes
+++ b/cc.notes
@@ -34,6 +34,9 @@ Updated by Stephen Heumann and Kelvin Sherlock, 2017-2021
             11.	Some new library functions and features from C99 and C11 have
                	been added.  See "Library Updates."
 
+            12.	Floating-point constant expressions now use extended precision.
+               	See "Evaluation of Floating-Point Expressions and Constants."
+
 2.1.1 B3    1.	Bugs squashed.  See bug notes, below.
 
 2.1.0       1.	Bugs squashed.  See bug notes, below.
@@ -666,7 +669,7 @@ For all the functions taking an argument called excepts, it is a bitwise OR of f
 
 fegetround() gets the current rounding direction.  fesetround() sets the rounding direction.  fegetenv() saves a representation of the current floating-point environment to *envp.  feholdexcept() saves a representation of the current environment, then clears all exception flags and disables halts for all floating-point exceptions.  fesetenv() sets the floating-point environment, but does not raise any exceptions.  feupdateenv() temporarily saves the currently raised floating-point exceptions, installs the specified floating-point environment, and then raises the saved exceptions.
 
-Except for fetestexcept() and fegetround(), these calls return 0 if they successfully carried out the operation, or non-zero otherwise.  Under ORCA/C, they always succeed if given valid arguments.  Under ORCA/C, these functions all correspond to operations on the SANE environment; see the Apple Numerics Manual for details on its behavior.  To ensure that these functions interact properly with floating-point operations in the program, #pragma STDC FENV_ACCESS ON should be in effect when they are called; see "New Language Features," above.
+Except for fetestexcept() and fegetround(), these calls return 0 if they successfully carried out the operation, or non-zero otherwise.  Under ORCA/C, they always succeed if given valid arguments.  To ensure that these functions interact properly with floating-point operations in the program, #pragma STDC FENV_ACCESS ON should be in effect when they are called; see "New Language Features," above.  Under ORCA/C, these functions all correspond to operations on the SANE environment; see the Apple Numerics Manual for details on its behavior.  Note that these functions may not behave as expected when using an FPE or compatible floating-point card.
 
 10. (C99) Several new function-like macros for classification of floating-point numbers have been added:
 
@@ -1208,6 +1211,8 @@ int foo(int[42]);
 
 160. The volatile type qualifier was omitted from declarations recorded in a .sym file.  This could lead to volatile accesses being optimized away.
 
+161. The system() function might return the wrong value when using the large memory model.  (This was a regression introduced in ORCA/C 2.2.0 B3.)
+
 -- Bugs from C 2.1.0 that have been fixed -----------------------------------
 
 1.  In some situations, fread() reread the first 1K or so of the file.