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Update gems

bundle update

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Install missing migrations

rake railties:install:migrations

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Run migrations

rails db:migrate

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Install Spree Analytics Trackers extension

If you were previously using Analytics Trackers feature you need to install it as an extension as it was extracted from the core.
  1. Add Spree Analytics Trackers to your Gemfile:
bundle add spree_analytics_trackers
  1. Copy and run migrations:
bin/rails g spree_analytics_trackers:install

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Read the release notes

For information about changes contained within this release, please read the 3.5.0 Release Notes.