1. PHP REQUIREMENT LINK: https://docs.gibbonedu.org/introduction/system-requirements (See version.php) and https://github.com/GibbonEdu/core/blob/v26.0.00/CHANGELOG.txt#L29-L30 (Gibbon requires PHP 7.4 and MYSQL 5.7 since v26.0.00, mentioned in this changelog link)
2. Install without demo data.
3. Upgrade guide : https://docs.gibbonedu.org/administrators/getting-started/updating-gibbon/
4. Select Country as United States, Currency as US dollar $, Timezone as America/New_York in Miscellaneous settings while manual installation.
5. [NA] Gibbon works on MySQL 5.5 as well, as docs mention MySQL 5 or higher. But Since Home > System Admin > System Check shows that Gibbon v17.0.00 requires MySQL version 5.6 or higher. So we have changed MySQL requirement to MySQL 5.6 in info.xml(Since v17.0.00). 
6. Install Type : Production, Statistics Collection : No, Receive Support? : Uncheck. i.e NO
7. Writable permission required for "i18n" folder to install languages, don't give writable permission while manual installation. ( language can be install from "Admin > System Admin > Manage Languages" option )
8. Check and move 'USING BTREE' entries in SQL to the left(Since 20.0.00).
9. Remove .git folder from original package and then make a zip.
10 Add i18n/en_US folder from manual to our package (Since 23.0.0). You can check and compare gibbon.mo from https://github.com/GibbonEdu/i18n/tree/main/en_US/LC_MESSAGES
11. Columns `bloodType` and `tetanusWithin10Years` from `gibbonPersonMedical` Table and gibbonPersonMedicalUpdate` Table are not getting genereted post upgrading 23.0.2 installation to 24.0.0 These are not necessary and they shall remove these columns from installation in next release.(confirmed with vendor)
12. Since 30.0.00 while manual installation, use utf8mb3_general_ci database collation while creating database as mentioned in docs, also it asks for same while manual installation
https://docs.gibbonedu.org/introduction/system-requirements
13. Remove "default collation" of server from sql file in tables(ex. utf8mb4_0900_ai_ci), This is created automatically by MYSQL while Softaculous install.