Update contao 4.4.7 to 4.4.18 through composer

Haii,
I want to do a minor upgrade on contao 4.4.7 to 4.4.18. Can anyone brief about How to do minor upgrades and major upgrades (4.5) in contao through composer?

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I have followed this documentation https://docs.contao.org/books/manual...al-update.html, and unable to do the upgrade because after doing it the version doesn't change , see the attached screenshot. I have also followed https://github.com/contao/core-bundle/tree/4.4.

Please brief me the correct steps for upgrade.I think something from my part has gone wrong, but unable to pinpoint the missing step.

Attachment 252

Bugfix Update from version 4.4.7 to 4.4.18:

• Run the following console command in your SSH shell
  
  Code:

  ---

  composer update -o

  ---

  or
  
  Code:

  ---

  php composer.phar update -o

  ---

  (Note: replace – if necessary – the php command with the correct path to the PHP CLI executable)
  or
  
  Code:

  ---

  php web/contao-manager.phar.php composer update -o

  ---

  (This requires of course the availability of the Contao Manager script)
  
  
• Alternative: Run the Contao Manager and perform a package update

Minor Update from version 4.4.7 to 4.5.8:

• Edit the composer.json and change the line
  
  Code:

  ---

  contao/manager-bundle": "4.4.*

  ---

  to
  
  Code:

  ---

  contao/manager-bundle": "4.5.*

  ---

• Run the following console command in your SSH shell
  
  Code:

  ---

  composer update -o

  ---

  or
  
  Code:

  ---

  php composer.phar update -o

  ---

  (Note: replace – if necessary – the php command with the correct path to the PHP CLI executable)
  or
  
  Code:

  ---

  php web/contao-manager.phar.php composer update -o

  ---

  (This requires of course the availability of the Contao Manager script)
  
  
• Alternative: Run the Contao Manager, change the version for "Contao Open Source CMS" from "4.4.*" to "4.5.*" and perform a package update