Questions about the secondary development of ThinkPHP3.1.2 CRM

I have a CRM system built with thinkphp3.1.2, but I learned thinkphp3.2.3. 3.2.3 definitely has more complete functions than 3.1.2. I am now upgrading it to 3.2.3 (PS: It feels like the workload will be huge) It would be better to base it on ready-made secondary development, but I am relatively proficient in 3.2.3 and have done some projects. Please give me an answer, thank you

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I have a CRM system built with thinkphp3.1.2, but I learned thinkphp3.2.3. 3.2.3 definitely has more complete functions than 3.1.2. I am now upgrading it to 3.2.3 (PS: It feels like the workload will be huge) It would be better to base it on ready-made secondary development, but I am relatively proficient in 3.2.3 and have done some projects. Please give me an answer, thank you

Sooner or later you have to upgrade, do it while you have time, there is no need to completely rebuild. Take a look at the upgrade logto see what methods have been added and modified. After writing the unit test, it should be enough to run it.

I can’t find the upgrade log... I can’t find the readme.md of github or the official website... I don’t want to look at the git submission record.

Found it downstairs, like it and update the log

Official upgrade guide

I don’t know if this will work