iPhone 15 plus a lot of bugs and crashes

• The next update to iOS has not been released yet and is currently being tested. No need to check every hour, there has not been an official release date. Could be today or in a week, no one knows.
• Discussions on the current testing of the beta version iOS 26.0.1 update are not allowed here. It may certainly resolve some issues and include bug fixes, but that is something we cannot comment on due to the restrictions put in place on public disclosures when testing. If Apple makes a statement on resolved issues before release, that can be linked.
• An iOS update will not resolve a WhatsApp notification problem. That will need to be resolved by Meta.
• As with every major update, you should expect battery drain, lag, and increased temperature on the device for several days after the update. Apple does not give an exact number of days, but typically it is 3-4, and more time may be needed if you have a large photo library where object detection algorithms are being processed. You may see that for a short period of time in the next point update too. Plug your device in at night and let it charge all night, every night, and that may speed up the process to allow the background processes to run when the device is not in use.

About Apple software updates - Apple Support

dava17 wrote:

I have a lot of bugs.

1. The battery runs out quickly

2. WhatsApp notification if you want to reply to something that we type does not appear.

3. Hot temperature

4. And the screen like being less smooth, like a frame drop

5. Wifi is often cut off and must enter the password again.

When was this fixed? IOS update 26.0.1 maybe? I always monitor the software settings and updates almost every hour, but there is always no update.

Thank You

And what troubleshooting steps have you done so far?