It's a legit upgrade and if you'll try to check out their website you don't have to worry about it but I understand your doubt with their security.
https://coins.ph/blog/cx-first-digital-currency-exchange-philippines/I checked out the new trading platform and there are people who are already trading (beta) and with their wallet, they are also adopting ETH soon. What I don't like with CX withdrawal, it's only bank withdrawal - there's no other choice.
No question about Coins.ph legitimacy, in fact I was able to visit their office in Ortigas Pasig Philippines, at first you will think that its just an ordinary office until you found out they they are into Crytocurrency. The policy here in the Philippines may turn off those whales to try the site because I know some people whos account were closed because of the big deposits in Coins.ph, they close the account. now that they are into trading, are they going to do the same?