Thank you for chronicling your experience in moving from 1.4.x to 1.6.x. I'm sure it will prove helpful to others. You might look at the current water_drop theme as a starting point for your theme tweaks. Just copy it to another folder first.
[ hello from Webster ]

Dreamhost has been permanently migrating all of their shared hosting users to PHP 7 this month. I held onto my 1.4.x installation for as long as I could (thinking that was the only way to keep the "classic" theme), but made the full jump to this decade today without issue. I'm guessing others will be in the same boat soon. Here are my notes for anyone feeling a little lost:

• Disabled all plugins; backed up database and file tree.
• Upgraded from 1.4.27 -> 1.5.48: https://sourceforge.net/projects/coppermine/files/Coppermine/1.5.x/
• Upgraded from 1.5.48 -> 1.6.08: https://github.com/coppermine-gallery/cpg1.6.x/releases
• Made the switch from MySQL to MySQLi on 1.6.x when prompted.
• Tested PHP versions 7.0, 7.2, 7.3, and 7.4 all as working; chose 7.4. FastCGI seems to cause cache delays so I turned it back off.
• Pulled the most recent "classic", "classic_vstrip", and "classic_w_drop" themes from: https://sourceforge.net/projects/coppermine/files/Themes/1.5.x/
• It looks like "classic_w_drop" is the closest to the original 1.4.x version. Planning to tweak it for full design parity.

CPG continues to stand the test of time. I've been around since 1.3.3(!) in 2005(!!). From the bottom of my heart, THANK YOU current and past contributors / mods. I genuinely hope you feel a sense of pride in keeping all of our memories alive and accessible.

Our apologies ...
User submitted changes were made that were apparently not fully tested.

Please replace include/archive.php with the attached (unzipped) file.

Corrected file will be in next release (1.6.09).

It's working again on 1.6.08!
I must mention that I'm very surprised and impressed that I even received a response to my post which was over 2 years since the last one and about a plugin that was releases for cpg 1.5.

Thank You All!

Our apologies ...
User submitted changes were made that were apparently not fully tested.

Please replace include/archive.php with the attached (unzipped) file.

Corrected file will be in next release (1.6.09).

Hello, I had this plugin working with CPG 1.6.07, I just updated to 1.6.08 and it's not working anymore, I now receive this message, somewhat edited for site information:

Deleting old zip files...

Creating file list...

Creating zip file...

Fatal error: Uncaught Error: Call to undefined method zip_file::archive() in /home/cpg/include/archive.php:580 Stack trace: #0 /home/cpg/plugins/albumdownload/zip.php(38): zip_file->__construct('edit/pictures-5...') #1 /home/cpg/index.php(75): include_once('/home/...') #2 {main} thrown in /home/cpg/include/archive.php on line 580

Wondering if anyone has it working with 1.6.08, I might have edited some things based on suggestions in this thread to get it to work in 1.6.07 but I don't remember.
File check mentions that archive.php was changed since 1.6.07, here is line 580 and 581:

    $this->archive($name);
    $this->options['type'] = "zip";

Thank You

Hello

I want to hide (temporary) just certain categories .... in light of this post for 1.5.X support (https://forum.coppermine-gallery.net/index.php?topic=77711.0)

Will it be much coding to ... e.g. have on the catmgr.php page a simple radio button for example or tick block to have the ability to show / hide the category ?

Thank you in advance

You could try using the CPG xfeed plugin with any number of rss widgets for Wordpress. Using that method would allow CPG and Wordpress to be widely separated instead of in the same hosting account.

Here is an Admin Tool to modify keywords (add, remove, clear).

Place it in the tools directory of your CPG install. (it should be a folder named re_key)

Access it from the Admin Tools menu.

Sorry If I posted this in the wrong Place.
There is a plug in for Version 1,5
Keywords add plugin for cpg1.5.x
I am now in the process of combining a family tree program with my coppermine collection and have found a need to add new keywords to a few thousand of my photographs.
I realise that many of the plug ins for version 1.5 will not work with version 1.6 but I was wondering if any of you clever experts could take a peek to see if there is a minor tweak that can be made to get it to work.
The plug in gets stuck at the point where it asks you to "select an album in which you want to add information"
It could be a minor tweak or if not thank you for looking at it.

I hang me on this thread, as I think the wordpress community is very popular, and could also help if there would be a good working widget available. In case someone has these days to be in quarantee, and need a chalange...

I used until now
TTC Coppermine Badge Widget https://de.wordpress.org/plugins/coppermine-badge-widget/
and
Coppermine Photo Gallery Badge Plugin for WordPress  https://wordpress.org/plugins/coppermine-badge/
both from same editor, which is not anymore active. What I've seen are they both for mysql and not mysqli, may also some other minor adoption are required.

Further plugins which are outdated and do not work anymore:
- Display CPG Thumbnails https://de.wordpress.org/plugins/display-cpg-thumbnails/
- WP Coppermine Plugin https://de.wordpress.org/plugins/wp-cpg-widget/