Need to adding the certificates with Let's Encrypt for the domain names added as serveralias in the apache directives on subdomains, with autorenew system.

IIS has CPU management based on Application pools.
It would be great if memory was also controllable.

it would be nice, if you can put little Question Marks between the important words, so that you don´t have to read the whole book with tips.
Over these Question Marks you can hover and than there is a short information about several steps.
Sry for the bad english i am from Germany.

Currently only two IP addresses can be assigned to a domains in case they are IPv4 and IPv6.
It will be great to assign several IPv4 and/or IPv6 at once.

Please add one more feature in Plesk Panel. in Create User Role page please add website selection drop down so we can add each user manage there own site.
Please add multi select drop-down so it will be ease for single user have multi sites.

assign different IPs to subdomains. In the current system, only the IP address of the main domain is assigned to the subdomain. Big deficiency.

I want to use protected directories with excluding any specific files.

Please pay attation for the next releases:
https://plugins.roundcube.net/packages/johndoh/sieverules

Maybe you can use:
roundcube/managesieve (default plugin)

A Script for Gameserver Hosting was cool

Add "Virtual Directories" feature for Linux.

Currently there is no way to enable showing file index when using protected directory with nginx.

"autoindex on;"

Create new XML API for set the related site of an existing database (or evene as an option when creating it)

Allow users to automate reports for website statistics.

Compile sw-cp-server with httprealipmodule.
It is useful when Plesk itself is behind a proxy.

Example use-case: redirect clients from WHMCS to Plesk when Plesk is protected by CloudFlare

Currently, when the website is copied a notification is sent to subscription owner of the target website.
It would be good to add functionality to disable such notifications or change the recipient mail address.

Request: add to Plesk interface option to enable IP Canonicalization.

IP Canonicalization - is the process of redirecting IP address to the main domain name hosted with it. It is same as URL canonicalization and it saves your website from being duplicate.

Requirements to setup IP canonicalization:
1) You should have dedicated IP address for domain.

2) You sohuld have a rewrite/redirect rule (example scheme: https://203.0.113.2 -> https://example.com ) in web server conifguration.

This can be done by means of IIS:
https://forums.iis.net/t/1214673.aspx?IP+Canonicalization+

or by means of Apache:
https://www.interserver.net/tips/kb/ip-canonicalization-url-canonicalization/

Please provide a Best Free Compression Tool/API for all types of documents like image/pdf etc as a service for website development.

I'm missing a feature where I can anonymize the statistics, but not the log files. Background: I need the IPs for 7 days for security reasons (the logs are deleted after 7 days), but want to use AWstats for statistics which cover the last 12 months (at least). At this moment I have to choose between complete anonymization and using statistics OR no anonymization and no statistics.

Web Deployv.4.0 was installed on the server before Plesk.
Now WebDeploy is displayed as installed in Plesk installer.
However, it is not detected by Plesk in Tools & Settings > Server Components(Refresh does not help either).

Please add support for WebDeploy 4.0