diff --git a/Changes b/Changes
index c0e0aec..1b67098 100644
--- a/Changes
+++ b/Changes
@@ -1,5 +1,9 @@
 Revision history for Perl extension Inline::CPP.
 
+0.80
+  - Bump minimum Inline::C version to 0.80 for better backward compatibility.
+  - Bump minimum Inline version to 0.82.
+
 0.79
   - Whitespace cleanup in POD.
   - support Perl 5.8.1
diff --git a/Makefile.PL b/Makefile.PL
index 5721689..3f92a9f 100644
--- a/Makefile.PL
+++ b/Makefile.PL
@@ -4,13 +4,13 @@ use strict;
 
 # The next line is verified via t/13version_numbers.t. Retain single quoting.
 
-my $DIST_VERSION    = '0.75';                        # DRY in Makefile.PL.
+my $DIST_VERSION    = '0.80';                        # DRY in Makefile.PL.
 
 my $CPP_Config_path = 'lib/Inline/CPP/Config.pm';
 
 my %PREREQ_PM = (
-  'Inline'            => '0.78',
-  'Inline::C'         => '0.78_003', # supports 5.8.1
+  'Inline'            => '0.82',
+  'Inline::C'         => '0.80', # supports 5.8.1
   'Parse::RecDescent' => '0',
   'Carp'              => '0',
   'Config'            => '0',
diff --git a/README b/README
index e0bdff5..893c15a 100644
--- a/README
+++ b/README
@@ -43,7 +43,7 @@ variation for your specific C++ compiler,
 
 *** DISABLE HARNESS_OPTIONS=j9 ***
 
-If you have the HARNESS_OPTIONS environment variable set to run tests 
+If you have the HARNESS_OPTIONS environment variable set to run tests
 concurrently in multiple processes, the test suite will attempt to invoke
 the C++ compiler multiple times concurrently.  Recent versions of Inline and
 Inline::C have made progress on stamping out race conditions, but YMMV for now.
diff --git a/lib/Inline/CPP.pm b/lib/Inline/CPP.pm
index 9d7c512..eeb7da6 100644
--- a/lib/Inline/CPP.pm
+++ b/lib/Inline/CPP.pm
@@ -19,7 +19,7 @@ our @ISA = qw( Inline::C );    ## no critic (ISA)
 # Development releases will have a _0xx version suffix.
 # We eval the version number to accommodate dev. version numbering, as
 # described in perldoc perlmodstyle.
-our $VERSION = '0.79';
+our $VERSION = '0.80';
 # $VERSION = eval $VERSION; ## no critic (eval)
 
 my $TYPEMAP_KIND;
diff --git a/lib/Inline/CPP/Parser/RecDescent.pm b/lib/Inline/CPP/Parser/RecDescent.pm
index 68db036..67d2029 100644
--- a/lib/Inline/CPP/Parser/RecDescent.pm
+++ b/lib/Inline/CPP/Parser/RecDescent.pm
@@ -4,7 +4,7 @@ package Inline::CPP::Parser::RecDescent;
 # Dev versions will have a _0xx suffix.
 # We eval the $VERSION to accommodate dev version numbering as described in
 # perldoc perlmodstyle
-our $VERSION = '0.79';
+our $VERSION = '0.80';
 #$VERSION = eval $VERSION;  ## no critic (eval)
 
 use Carp;