Upgrade php8.3 to php8.4

grep -E 'memory_limit|upload_max_filesize|post_max_size|max_execution_time|opcache|date.timezone|output_buffering' /etc/php/8.3/fpm/php.ini /etc/php/8.3/fpm/conf.d/*.ini 

for php.ini  

clear_env = no

request_terminate_timeout = 300
; Match max_execution_time to handle long uploads gracefully.
 
process.priority = -19
; Optional: Boost priority (requires root and SYS_NICE capability).

pm = dynamic
; "dynamic" adjusts the number of child processes based on load; use "static" for dedicated servers with predictable traffic.
 
pm.max_children = 120
; Max number of child processes; calculate as (Total RAM - 1G for OS/other services) / 50-100 MB per process.
; Example: 4 GB RAM → ~60-80 children; 8 GB RAM → ~120-150 children.
 
pm.start_servers = 12
; Initial processes; set to ~10-20% of max_children.
 
pm.min_spare_servers = 6
; Minimum idle processes; set to ~5-10% of max_children.
 
pm.max_spare_servers = 18
; Maximum idle processes; set to ~15-25% of max_children.
 
pm.max_requests = 500
; Restart child processes after this many requests to prevent memory leaks.

for pool.d/www.conf 

Check conf.d/*  Copy 10-opcache