translate mq4 to mq5

Hi everyone, i have been studying mql  and so far soo good 

I am looking for advice on the best library to use for converting MQL4 to MQL5. I would greatly appreciate any suggestions or recommendations from experienced programmers in the community. Thank you in advance for your help.
Migrating from MQL4 to MQL5
Migrating from MQL4 to MQL5
This article is a quick guide to MQL4 language functions, it will help you to migrate your programs from MQL4 to MQL5. For each MQL4 function (except trading functions) the description and MQL5 implementation are presented, it allows you to reduce the conversion time significantly. For convenience, the MQL4 functions are divided into groups, similar to MQL4 Reference.

Those are not open source reason is 100% automatic and correct source code conversion is not easy.

The mq4->mq5 libaray is getting old and has bugs and missing APIs like ibandsonarray etc.