Update release notes.

cc.notes

@@ -172,6 +172,10 @@ p. 263
 
 2. There is a new optimization bit for #pragma optimize.  See #pragma optimize, below.
 
+p. 277
+
+The type "long double" now specifies a number in the SANE extended format.
+
 p. 289
 
 Unions can be initialized by a brace-enclosed expression giving the initializer value for the first element of the union, or by an expression of the appropriate union type.  The non-standard construct of initializing the first element of a union with a non-brace-enclosed initializer is no longer supported.  The supported alternative is simply to enclose the initializer in braces, e.g.
@@ -737,6 +741,14 @@ int foo(int[42]);
 
 83. Constant expressions cast to char or unsigned char could be treated as if their type promoted to unsigned int rather than int.
 
+84. If the compiler was set to enter the editor on errors, it could sometimes open the editor at the wrong position in the file.
+
+(Matt Ackeret)
+
+85. Errors displayed for source lines indented with tabs would typically appear to be at the wrong position (depending on how the console in use displays tabs).
+
+86. The LDBL_* values in <float.h> were all wrong.  They specified values for the double format, not the SANE extended format actually used for long double.  Most of them have now been corrected; however, LDBL_MAX and LDBL_MIN are still incorrect, because ORCA/C internally represents floating-point constants in the double format, which is not capable of holding the proper values for them.
+
 -- Bugs from C 2.1.0 that have been fixed -----------------------------------
 
 1.  In some situations, fread() reread the first 1K or so of the file.