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Is ClassicPress WordPress Hard Fork compatible with Premium Press?

  • Liz
    Elite Member 442 points
    December 6, 2018 at 2:43 pm

    I just found this notice about the WordPress hard fork. I might migrate.

    Forum is here to read about it all.

    ClassicPress (, the hard fork of WordPress 4.9.9. and been released, ClassicPress will always stay backward compatible with WP 4.9.x.

    plugins compatible with the new editor that WP will introduce in version 5.0, also remains compatible with earlier versions of WordPress, such as 4.9.9?
    as long as your plugin remains compatible with WP 4.9.x, it will also be compatible with version 1.x of ClassicPress.

    You probably know this already, but there is even a handy condition that you can use in your plugins:

    function_exists( ‘classicpress_version’ )

    And if you want to go even further, you can add somewhere in the plugin’s readme.txt that your plugin is compatible with ClassicPress. Once you do, it will be very easy for people to search in the WP Plugins Directory on ClassicPress compatible plugins:

  • JamesD
    Super Guru 1,345 points
    December 7, 2018 at 11:24 pm

    Hi Liz,

    I set up a default demo site of the theme on a dev domain without any issues( that I’ve ran across yet).

    Haven’t tried “migrating” with anything other than the default theme/demo data though.

  • JamesD
    Super Guru 1,345 points
    December 8, 2018 at 12:54 am


    Here’s the default DT9 theme using ClassicPress:

    I’d be happy to set up a sub-domain you can use to test out the process and framework before actually attempting on your production server. If so, just send an email to jamesd [at] webhostgnome [dot] com and I’ll set up a sub-domain for you. (also send the subdomain name you’d like to use if you prefer).

  • Mark Fail
    Mark Fail
    Super Guru 12,822 points
    December 12, 2018 at 1:44 am

    While i understand why they have done this, Classicpress is not something i would recommend. For the time being the classic code is still mostly based around the current WP platform therefore you wont see many (if any) issues arise however, whilst they have a few volunteer coders, the WordPress company have hundreds and within a few months the code will be out of date and could potentially be riddled with security issues.

    I spend alot of time keeping the Version 9 themes updated with the core WordPress codeset. There is no reason to use anything else.

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