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+Version 0.12
+
+* regex.c does not #define bcmp/bcopy/bzero if they already are.
+
+* regex.h does not redefine `const' if it is already defined, even if
+  __STDC__ is not defined.
+
+* RE_SYNTAX_ED added (same as POSIX BRE's).
+
+* The following bugs have been fixed, among others:
+  * The pattern \w+ doesn't infinite loop.
+  * The pattern ".+\n" is compiled correctly.
+  * Expressions with more than MAX_REGNUM groups are compiled correctly.
+
+* Patterns that end in a repetition operator (e.g., `*') match
+  slightly faster if no looping is actually necessary.
+
+Version 0.11 (17 Sep 92)
+
+* Back-references to nonexistent subexpressions, as in the r.e. `abc\1',
+  are always invalid.  Previously, they could match the literal digit,
+  e.g., the stated r.e. might have matched `abc1'.
+
+* Empty subexpressions are always valid (POSIX leaves this undefined).
+
+* Simplified rules for ^ and $ being anchors.
+
+* One minor speedup (rewriting the C procedure `pop_failure_point' as a
+  macro again).
+
+* Bug fixes involving:
+    - Declarations in regex.h and non-ANSI compilers.
+    - Bracket expressions with characters between 0x80-0xff.
+    - Memory leak in re_match_2 on systems requiring `alloca (0)' to
+      free alloca'd storage.
+
+* Test and documentation files moved into subdirectories.
+
+Version 0.10 (9 Sep 92)
+
+* `obscure_syntax' is now called `re_default_syntax'.
+
+* `re_comp's return type is no longer `const', for compatibility with BSD.
+
+* POSIX syntaxes now include as much functionality as possible
+  (consistent with the standard).
+
+* Compilation conditionals normalized to what the rest of GNU is
+  migrating towards these days.
+
+* Bug fixes involving:
+    - Ranges with characters between 0x80 and 0xff, e.g., [\001-\377].
+    - `re_compile_fastmap' and the sequence `.*\n'.
+    - Intervals with exact counts, e.g., a{5}.
+
+* Changed distribution to use a standard Makefile, install the info
+  files, use a configure script, etc.
+
+Version 0.9
+
+* The longest match was not always chosen: `a*|ab' didn't match `aab'.
+