Update version numbers etc for 4.0.3

.VERSION

@@ -1 +1 @@
-4.0.2
+4.0.3

CHANGELOG.md

@@ -3,6 +3,26 @@ Copyright © 2011-2022 [James D. Mitchell][] et al.
 
 Licensing information can be found in the `LICENSE` file.
 
+### Version 4.0.3 (released 01/07/2022)
+
+This is a minor release that includes a number of improvements and bug fixes:
+
+* Update authors + mailmap by @james-d-mitchell in
+  https://github.com/semigroups/Semigroups/pull/837
+* Resolve issue #835 (implement `MultiplicationTable` for fp semigroups and
+  monoids) by @james-d-mitchell in
+  https://github.com/semigroups/Semigroups/pull/838
+* Improve ccache hit rate in CI by @james-d-mitchell in
+  https://github.com/semigroups/Semigroups/pull/840
+* Improve support for quotient semigroups by @james-d-mitchell in
+  https://github.com/semigroups/Semigroups/pull/841
+* semigrp: remove 2 unnec. methods after #841 by @james-d-mitchell in
+  https://github.com/semigroups/Semigroups/pull/843
+* congsemigraph: add meet method by @james-d-mitchell in
+  https://github.com/semigroups/Semigroups/pull/842
+* Remove superfluous strings from error messages by @james-d-mitchell in
+  https://github.com/semigroups/Semigroups/pull/845
+
 ### Version 4.0.2 (released 05/06/2022)
 
 This is a minor release that includes a number of minor fixes:

PackageInfo.g

@@ -34,8 +34,8 @@ _STANDREWSCS := Concatenation(["Jack Cole Building, North Haugh, ",
 SetPackageInfo(rec(
 PackageName := "Semigroups",
 Subtitle := "A package for semigroups and monoids",
-Version := "4.0.2",
-Date := "05/06/2022",  # dd/mm/yyyy format
+Version := "4.0.3",
+Date := "01/07/2022",  # dd/mm/yyyy format
 License := "GPL-3.0-or-later",
 
 ArchiveFormats := ".tar.gz",

VERSIONS

@@ -9,6 +9,7 @@
 ##
 ##
 
+release 4.0.3  - 01/07/2022
 release 4.0.2  - 05/06/2022
 release 4.0.1  - 21/04/2022
 release 4.0.0  - 28/02/2022