Update changelog.md

Author: SubleXBle

changelog.md

@@ -1,35 +1,6 @@
 # changelog
 
-## Changes made for V 0.4.0
-
-### Optimized `firewall-update.sh` for faster processing, improving performance with large JSON files.
-
-#### Changed
-- **Batch blocking of IPs**
-  - Original: Loops through each active IP and runs `ufw deny from "$ip"` immediately if not already blocked.
-  - New: Collects all new active IPs per jail and executes `ufw deny from "$ip"` in one batch section before performing a single `ufw reload`.
-
-- **UFW reload behavior**
-  - Original: No explicit reload after blocking; relied on UFW to apply rules instantly.
-  - New: Explicit `ufw reload` after all block actions are done to ensure all deny rules are active before proceeding.
-
-- **Unblocking procedure**
-  - Original: For each inactive IP:
-    - Lists all matching UFW rules.
-    - Deletes them immediately without reload between rules.
-  - New: For each inactive IP:
-    - Performs `ufw status numbered` before deletion to ensure correct rule numbering.
-    - Deletes rules one-by-one **with reload after each deletion** to avoid numbering mismatches.
-
-- **JSON update timing**
-  - Original: Updates JSON and cleans inactive entries after processing each IP.
-  - New: Updates and cleans JSON **once per jail** after all block/unblock actions are completed.
-
-#### Unchanged
-- Locking mechanism using `/tmp/{jail}.blocklist.lock` remains identical.
-- Validation of prerequisites (`jq`, `ufw`).
-- Ownership and permission setting (`chown www-data:www-data`, `chmod 644`).
-- Logging format and verbosity remain compatible.
+
 
 
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