Unable to install recommendation bundle ^2.0 on ee-demo LTS (1.7.6)
ezplatform-ee-demo repo has dependency (https://github.com/ezsystems/ezplatform-ee-demo/blob/v1.7.6/composer.json#L60)

"ezsystems/ezstudio-personalized-block": "~1.0.0",

and it should be changed to

"ezsystems/ezstudio-personalized-block": "^1.0",

to be able to install 1.0 and >1.0

ezstudio-personalized-block:

  "ezsystems/recommendation-bundle": "^1.0"

 "ezsystems/recommendation-bundle": "^1.0|^2.0"