Update version numbers etc for v5.6.1

Author: james-d-mitchell

.VERSION

@@ -1 +1 @@
-5.6.0
+5.6.1

CHANGELOG.md

@@ -4,6 +4,15 @@ Copyright © 2011-2026 [James D. Mitchell][] et al.
 
 Licensing information can be found in the `LICENSE` file.
 
+## Version 5.6.1 (released 18/03/2026)
+
+This is a minor release to fix some issues with the release archive for v5.6.0,
+and to fix a memory leak caused by raising errors in GAP from caught C++
+exceptons:
+
+- Fix GAPBIND14_TRY memory leak by @Joseph-Edwards in
+  https://github.com/semigroups/Semigroups/pull/1145
+
 ## Version 5.6.0 (released 05/03/2026)
 
 There are a bunch of fixes and improvements in this version. The most major new

PackageInfo.g

@@ -1,7 +1,7 @@
 ############################################################################
 ##
 ##  PackageInfo.g
-##  Copyright (C) 2011-2025                              James D. Mitchell
+##  Copyright (C) 2011-2026                              James D. Mitchell
 ##
 ##  Licensing information can be found in the README file of this package.
 ##
@@ -34,8 +34,8 @@ _STANDREWSCS := Concatenation(["Jack Cole Building, North Haugh, ",
 SetPackageInfo(rec(
 PackageName := "Semigroups",
 Subtitle := "A package for semigroups and monoids",
-Version := "5.6.0",
-Date := "05/03/2026",  # dd/mm/yyyy format
+Version := "5.6.1",
+Date := "18/03/2026",  # dd/mm/yyyy format
 License := "GPL-3.0-or-later",
 
 ArchiveFormats := ".tar.gz",

VERSIONS

@@ -9,6 +9,7 @@
 ##
 ##
 
+release 5.6.1  - 18/03/2026
 release 5.6.0  - 05/03/2026
 release 5.5.4  - 29/08/2025
 release 5.5.3  - 17/07/2025