Upgrade 4.x to 5.x 

Starting with 5.x the composer package name and extension key has been renamed!

You need to migrate the extension settings from ['TYPO3_CONF_VARS']['EXTENSIONS']['wv_deepltranslate'] to ['TYPO3_CONF_VARS']['EXTENSIONS']['deepltranslate_core'].

Then you will need to replace the previous package by uninstalling it first.

composer-mode 

composer remove "web-vision/wv_deepltranslate"
composer require "web-vision/deepltranslate-core":"^5"
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classic-mode 

  1. Uninstall "wv_deepltranslate" using the Extension Manager. Switch to the module Admin Tools > Extensions and filter for wv_deepltranslate and remove (uninstall) the extension.

  2. Ensure to remove the folder completely. Run

    rm -rf typo3conf/ext/wv_deepltranslate
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  3. Get it from the Extension Manager: Switch to the module Admin Tools > Extensions. Switch to Get Extensions and search for the extension key deepltranslate_core and import the extension from the repository.
  4. Get it from typo3.org: You can always get current version from TER by downloading the zip version. Upload the file afterwards in the Extension Manager.