Bump version number and clarify version.

doc/en/Developer/Development_track.md

@@ -5,7 +5,7 @@
 Requests for features and ideas for developing STACK are all recorded in [Future plans](Future_plans.md). The
 past development history is documented on [Development history](Development_history.md).
 
-## Version 4.5.0
+## Version 4.6.0
 
 This version will require moodle 4.0+, and will no longer support Moodle 3.x (which ends its general support on 14 November 2022, and security support ends on 11 December 2023.)
 
@@ -14,7 +14,9 @@ Todo:
 1. Change 'core/event' to 'core_filters/events' in input.js and stackjsvle.js.
 2. Strip out parallel DB support in reporting etc.  Search for `stack_determine_moodle_version()`
 
-## Version 4.4.6
+## Version 4.5.0
+
+Please note, this is the _last_ version of STACK which will support Moodle 3.x.
 
 1. Refactor the healthcheck scripts, especially to make unicode requirements for maxima more prominent.
 2. Shape of brackets surrounding matrix/var matrix input types now matches question level option for matrix parentheses.  (TODO: possible option to change shape at the input level?)

stack/maxima/stackmaxima.mac

@@ -3315,4 +3315,4 @@ is_lang(code):=ev(is(%_STACK_LANG=code),simp=true)$
 
 /* Stack expects some output with the version number the output happens at */
 /* maximalocal.mac after additional library loading */
-stackmaximaversion:2023093000$
+stackmaximaversion:2023102000$

version.php

@@ -24,12 +24,12 @@
 
 defined('MOODLE_INTERNAL') || die();
 
-$plugin->version   = 2023093000;
+$plugin->version   = 2023102000;
 $plugin->requires  = 2020061500;
 $plugin->cron      = 0;
 $plugin->component = 'qtype_stack';
 $plugin->maturity  = MATURITY_ALPHA;
-$plugin->release   = '4.4.6 for Moodle 3.9+';
+$plugin->release   = '4.5.0 for Moodle 3.9+';
 
 $plugin->dependencies = array(
     'qbehaviour_adaptivemultipart'     => 2020103000,