First we planned to release 4.0.1, 4.0.2, etc.
But as we started to work on new release, so many major updates has been made that version must go to 4.1.

Planned release date is end of 2020 and already now you we have integrated following features & fixes:

• Added image rotation functionality on publish page
• Added/Fixed upgrade & auto-upgrade functionality for osclass core
• Search pattern settings: boolean (original) / NLP / contains mode
• Replaced TinyMCE v4.x with TinyMCE v5.4 in osclass core (assets)
• Added option to enable TinyMCE rich editor on listings description in oc-admin & front theme
• Added option to upload images in static pages & email templates just by placing it into content from clip board
• Updated core to properly work with "rich" description
• Fixed multiple error notices in osclass core

If you have ideas, what could be useful function for community (not theme updates, plugin updates, copy functions from different plugins etc...), feel free to share your ideas here 

Search pattern settings:

0 - search in title + description
1 - search in title only
2 - search in description only

Thanks for suggestion, but honestly yet I did not have need to restrict search i.e. just to title.
What is your reason?

Locations:

Add 4th level for location = city area

Add locale for locations:
Translate option : Country, Region, City and City Area

Locations:

Add extra level or just field for zip code

Option for ZIP CODE search

Republish

Basic republish option - extend expiration date (days from category settings)
Set how many time item can be republished
Email notification - Item expired - Would you like republish it? Go to your account and republish your listing...

Publish

Category settings:

Add more options for expiration days.
For example 5 options
Admin can select:
Option is used or not. If is used select days of expiration

example:
option 1 - 7 days
option 2 - 14 days
option 3 - 30 days
.....

Osclass pay plugin

Pay for publish
7 days - 3 USD
14 days - 5 USD
30 days - 10USD
.......

Well that is not osclass core feature

That is my suggestion. Category setting (expiration date) is for osclass core. 

Ok, republish function is in your Backoffice plugin, but republish option could be a basic feature of Osclass, I think.

Back office plugin - republish

1. If website publishing is for free your republish is ok. Just extend expiration date. That is OK.

2. If publishing must be payed and republishing option is OFF = When listing is expired, user need to delete it and post another payed listing...that is stupid...

3. If publishing must be payed and republishing option is ON = publishing is free a republishing must be payed.
So all users delete expired listings and publish them again for free... that is stupid...no one pay for republish if publishing is for free!!!

My suggestion for republishing:
If publishing must be payed, republishing must be payed too.
If publishing is for free, republishing must be free too.

Ideal configuration:
Set price for publishing and set price for republishing

example:
Publish - 5USD
Republish - 3USD or same 5USD

I know payment options are for Osclass Pay plugin, but basic free republish option would be nice for osclass core, I think.
But maybe you do not think so. That is OK. 

Or another suggestion...   
Backoffice plugin need to be updated...republish logic and bit old design as well.  but this is for another topic.

Why restrict Title or Description in pattern search?

When I know...all searchable thinks are in title...so why is needed to scan all descriptions?

Example:
Car classifieds... I will set up title us:
Make, Model, Year, Engine from Attributes Osclass plugin

Pattern: Type make or model

Make Osclass more flexible, please.

You are the only professional developer for Osclass, so... please 

- image rotation  when posting ad should be add (already exit in gamma them)
- Show phone on the listing page should be default show not hide  because most of people will show it
- individual categories page
  it better if we have  individual categories page like car > category car have own category page
most of all classified site already have it like quikr.com or gumtree.com

thank you for your maintenance osclass script 

Password

- when the user will register or change the password.
- check if the password will contain specific characters or an uppercase letter, number and the length.

settings:
- minimum length of the password;
- use at least a special character in a password, like #@%&*+;
- use at least one number in the password;
- use at least one uppercase in the password;

@tomi
It's good idea, but not quite sure yet if this can be done from osclass core or it is purely theme modification.

Added image rotation functionality on publish page
Functionality has been integrated into upcoming 4.1 release