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are permitted in any medium without royalty provided the copyright
notice and this notice are preserved.
+Changes from 4.2.x to 5.0.0
+---------------------------
+
+1. The undocumented configure option and code that enabled the use of
+ non-English "letters" in identifiers is now gone.
+
+2. The `--with-whiny-user-strftime' configuration option is now gone.
+
+3. The code now makes some stronger assumptions about a C99 environment.
+
+4. PROCINFO["platform"] yields a string indicating the platform for
+ which gawk was compiled.
+
+5. Writing to elements of SYMTAB that are not variable names now
+ causes a fatal error.
+
+6. Comment handling in the pretty-printer has been reworked almost completely
+ from scratch. As a result, comments in many corner cases that were
+ previously lost are now included in the formatted output.
+
Changes from 4.2.1 to 4.2.2
---------------------------