1. Select MySQLi in manual installation. 2. PHP REQUIREMENT LINK: https://docs.pkp.sfu.ca/admin-guide/en/getting-started#system-requirements 3. Tick on following addition languages except English in manual installation. Spanish French (Canada) Portuguese (Brasil) Finnish Norwegian Macedonian 4. Add upgrade in next version itself. (Added in version 3.2.1.2) 5. We have made change in lib/pkp/classes/install/form/UpgradeForm.inc.php because on upgrading 3.2.1.3 version to 3.3.0.3 version was giving error. https://github.com/pkp/pkp-lib/issues/6703 6. Post upgrade from 3.2.1.3 to 3.3.0.3 these tables were not created review_forms , review_form_elements, review_form_element_settings, review_form_responses, review_form_settings. These aren't required by OPS , confirmed here : https://forum.pkp.sfu.ca/t/ops-upgrade-from-3-2-1-3-to-3-3-0-3-does-not-create-some-tables-which-are-created-in-fresh-install-of-ops-3-3-0-3/65950 7. Remove 'uniqueSiteId' entry from `site_settings` table as it is generated post logging in. 8. Exclude 'IPGeoDB.mmdb' from {{DATA-DIR}}/usageStats as it is created post login.