We have a 3000 mAh battery, not a 4000 or 5000 mAh unit and with fairly heavy usage, it's great. We need security patches yup! But that's not an OS "bug".
Have you even made a topic on the forum or at least one post to ask about this? Probably a minor but that might be solved in the settings.
I do need the update. But! For GOD'S SAKE! Understand that Oreo is killing every phone it hase been added to as an update! Good of Smartron if they delay it, but give us an Oreo Update that won't require Roll-Backs like MiA1, OnePlus 3/3T.
And what extra does Oreo bring on to the table over Nougat? What's there that makes you SO impatient? We are GHANTA getting any Camera Updates, so chill. If Smartron couldn't do anything for 5 Updates, they can't improve anything manifold here, yes probably minor improvements or addition of Pro Mode le the t.phoneP, but won't make your camera into Pixel level.
If you're a Beta user, you can personally roll back to FOTA 5! And now, without feeling bad for not helping the company whatsoever because development is done and Smartron doesn't require you to use Beta anymore!