According to the upgrade instructions, you will need to go 2.6 to 2.7, then 2.7 to 3.2, then 3.2 to 3.7: https://docs.moodle.org/37/en/Upgrading#Check_the_requirements https://docs.moodle.org/32/en/Upgrading#Check_the_requirements
Mark
Are you aware that the MoodleDocs wikis of no more supported releases are not maintained?
For example the link you posted https://docs.moodle.org/32/en/Upgrading#Check_the_requirements is linked further to https://docs.moodle.org/32/en/Environment, which still has a screen-shot from Rel. 2.7. See the discussion https://moodle.org/mod/forum/discuss.php?d=391996.
Are you aware that the MoodleDocs wikis of no more supported releases are not maintained?
For example the link you posted https://docs.moodle.org/32/en/Upgrading#Check_the_requirements is linked further to https://docs.moodle.org/32/en/Environment, which still has a screen-shot from Rel. 2.7. See the discussion https://moodle.org/mod/forum/discuss.php?d=391996.