Upgrading Drupal

Hello,
I am at Dr 8.9.11 and got package "Upgrade Status 8.x-3.0-beta1" installed. I can see that v 3.0.0 is also available and compatible. How can I update to this version? When I try "composer require 'drupal/upgrade_status:^3.0-beta1" composer answers with "there is nothing to install or update". I suspect that the command is wrong for what I want. But - what's the correct command?
Thanks for your time...
H. S.

What is the best way to get the configuration of a D7 site to D9?

Thanks

I am setting up D 0.1 from scratch and I get the message that I should enable OPCACHE in PHP ini. The message however doesnt go away, could somebody please look at this part of my ini file? Many thanks!

Hello,
I am at Drupal 9.0.10 on Debian 10.1., PHP 7.4. I get the following warning message:

User deprecated function: Theme functions are deprecated in drupal:8.0.0 and are removed from drupal:10.0.0. Use Twig templates instead of theme_vbo_export_content_csv(). See https://www.drupal.org/node/1831138 in Drupal\Core\Theme\Registry->processExtension() (line 498 of core/lib/Drupal/Core/Theme/Registry.php)

I can find according references in the following places:

Drupal 8.9.11

Have issues upgrading block_class from 8.x-1.2 to 8.x-1.3

My composer file and the prohibit cmd yield the following :-

grep block_class composer.json
        "drupal/block_class": "^1.0",

sudo composer prohibit drupal/block_class
drupal-composer/drupal-project  -  requires  drupal/block_class (^1.0)

From the above, I understand my lock file is specifying 1.0 (just reading from the json file), but if 1.2 is matched, so should 1.3?

I Cannot install CKEditor_pastefromword in drupal 9.
When I try to install it I get the Message: