after installing the module, it requires to click on "save permissions" button on permissions page to work for other roles

I think you pointed right, as many users reporting this. We should find a way to let Drupal know we modified intro permissions table.
I see user.admin.inc from user module, clears all cache after updating Permissions table. Since exclude node title automatically assigns 'user exclude node title' permission to all roles on install, I believe we should call from .install:

  // Clear the cached pages
  cache_clear_all();

But I'm thinking if there isn't a better way, because clearing all cache might be painful for some high traffic sites.
Is there another way to rebuild / clear permissions cache?

Thanks.

I know that, but I want to know if there is any specific cache table that is responsible for permissions. The problem is that in our .install file we update permissions table, and for some reason they are not reflected on the site until you re-save the permissions form at admin/user/permissions

Actually I believe that if you check latest release it should be fine, I updated the SQL query in .install file.

Let me know,
Gabriel

I have been trying for some time to do what this module claims to. However, it provides another admin interface and the checkbox on the node edit form, but it does nothing on my 6.19. I am trying to exclude the title on some content on the front page which is made up of panels, but the titles remain. Kennedy Point Yacht Club

There are 2 options:
1. You have to check if you selected `exclude from tesers too`.
2. You have to check permissions table if you have checked `use exclude node title`

Let me know,
Gabriel

Duh! I keep forgetting that unlike when one creates some content where the title is required and has the option to use , panels allows one to exclude the title by checking the box but leaving the textfield blank. Thanks for the response.