diff --git a/README.md b/README.md
index f2ee33657..a4eda3254 100644
--- a/README.md
+++ b/README.md
@@ -76,9 +76,9 @@ File and directory links are supported for any file or directory in the PostgreS
 
 pgBackRest repositories can be stored on Amazon S3 to allow for virtually unlimited capacity and retention.
 
-### Compatibility with PostgreSQL >= 8.3
+### Compatibility with PostgreSQL >= 8.4
 
-pgBackRest includes support for versions down to 8.3, since older versions of PostgreSQL are still regularly utilized.
+pgBackRest includes support for versions down to 8.4, since older versions of PostgreSQL are still regularly utilized.
 
 ## Getting Started
 
diff --git a/doc/xml/index.xml b/doc/xml/index.xml
index 3c6c8aef7..f8fa685a4 100644
--- a/doc/xml/index.xml
+++ b/doc/xml/index.xml
@@ -131,9 +131,9 @@
         </section>
 
         <section id="postgres-compatibility">
-            <title>Compatibility with <postgres/> >= 8.3</title>
+            <title>Compatibility with <postgres/> >= 8.4</title>
 
-            <p><backrest/> includes support for versions down to 8.3, since older versions of PostgreSQL are still regularly utilized.</p>
+            <p><backrest/> includes support for versions down to 8.4, since older versions of PostgreSQL are still regularly utilized.</p>
         </section>
     </section>
 
diff --git a/doc/xml/release.xml b/doc/xml/release.xml
index 8e7dba3e9..647c8ae47 100644
--- a/doc/xml/release.xml
+++ b/doc/xml/release.xml
@@ -160,6 +160,8 @@
     <release-list>
         <release date="XXXX-XX-XX" version="1.20dev" title="UNDER DEVELOPMENT">
             <release-core-list>
+                <p><b>IMPORTANT NOTE</b>: Support for <postgres/> 8.3 has been removed in this release as no currently supported systems include it.</p>
+
                 <release-refactor-list>
                     <release-item>
                         <p>Harden protocol handshake to handle race conditions.</p>
@@ -176,6 +178,10 @@
                     <release-item>
                         <p>Rename <code>Archive</code> modules to remove redundancy.</p>
                     </release-item>
+
+                    <release-item>
+                        <p>Remove support for <postgres/> 8.3.</p>
+                    </release-item>
                 </release-refactor-list>
             </release-core-list>
 
diff --git a/lib/pgBackRest/Archive/Common.pm b/lib/pgBackRest/Archive/Common.pm
index 181eefe85..8f1a56d56 100644
--- a/lib/pgBackRest/Archive/Common.pm
+++ b/lib/pgBackRest/Archive/Common.pm
@@ -48,7 +48,6 @@ use constant PG_WAL_SEGMENT_SIZE                                    => 16777216;
 ####################################################################################################################################
 my $oWalMagicHash =
 {
-    hex('0xD062') => PG_VERSION_83,
     hex('0xD063') => PG_VERSION_84,
     hex('0xD064') => PG_VERSION_90,
     hex('0xD066') => PG_VERSION_91,
diff --git a/lib/pgBackRest/Db.pm b/lib/pgBackRest/Db.pm
index d7fedf0fe..4271dd75c 100644
--- a/lib/pgBackRest/Db.pm
+++ b/lib/pgBackRest/Db.pm
@@ -41,7 +41,6 @@ use constant DB_BACKUP_ADVISORY_LOCK                                => '12340078
 my $oPgControlVersionHash =
 {
     # iControlVersion => {iCatalogVersion => strDbVersion}
-    833 => {200711281 => PG_VERSION_83},
     843 => {200904091 => PG_VERSION_84},
     903 =>
     {
diff --git a/lib/pgBackRest/DbVersion.pm b/lib/pgBackRest/DbVersion.pm
index 23620c5bf..ed58dbf00 100644
--- a/lib/pgBackRest/DbVersion.pm
+++ b/lib/pgBackRest/DbVersion.pm
@@ -27,8 +27,6 @@ use constant PG_WAL_SIZE                                            => 16777216;
 ####################################################################################################################################
 # PostgreSQL version numbers
 ####################################################################################################################################
-use constant PG_VERSION_83                                          => '8.3';
-    push @EXPORT, qw(PG_VERSION_83);
 use constant PG_VERSION_84                                          => '8.4';
     push @EXPORT, qw(PG_VERSION_84);
 use constant PG_VERSION_90                                          => '9.0';
@@ -63,8 +61,8 @@ sub versionSupport
     # Assign function parameters, defaults, and log debug info
     my ($strOperation) = logDebugParam(__PACKAGE__ . '->versionSupport');
 
-    my @strySupportVersion = (PG_VERSION_83, PG_VERSION_84, PG_VERSION_90, PG_VERSION_91, PG_VERSION_92, PG_VERSION_93,
-                              PG_VERSION_94, PG_VERSION_95, PG_VERSION_96);
+    my @strySupportVersion = (
+        PG_VERSION_84, PG_VERSION_90, PG_VERSION_91, PG_VERSION_92, PG_VERSION_93, PG_VERSION_94, PG_VERSION_95, PG_VERSION_96);
 
     # Return from function and log return values if any
     return logDebugReturn
diff --git a/test/lib/pgBackRestTest/Common/VmTest.pm b/test/lib/pgBackRestTest/Common/VmTest.pm
index 35a533ba9..c331c6fd3 100644
--- a/test/lib/pgBackRestTest/Common/VmTest.pm
+++ b/test/lib/pgBackRestTest/Common/VmTest.pm
@@ -187,7 +187,6 @@ my $oyVm =
 
         &VM_DB =>
         [
-            PG_VERSION_83,
             PG_VERSION_84,
             PG_VERSION_90,
             PG_VERSION_91,
@@ -200,7 +199,7 @@ my $oyVm =
 
         &VM_DB_MINIMAL =>
         [
-            PG_VERSION_83,
+            PG_VERSION_84,
         ],
     },