Cron not running in NC 21.0.3

I updated only NC, no PHP update or anything and the error occured.
I went back to NC 21.0.2 with a backup and now it workls fine again.

I did some tests. I did a fresh installation of 21.0.3 on a second DiskStation (another Firmware version) and as soon as I enabled APCu the cron stopped. I did then a dffresh installation of 21.0.2 and the croin stayed intact after enabling APCu.

Here is the solution for Synology:
Create the file /usr/local/etc/php74/cli/conf.d/user_settings.ini with following content:

extension = apcu.so

[apc]
apc.shm_size = 512M
apc.enable_cli = 1

Thx to the guys from the German Synology Forum.

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