Thorsten,

cups-filters 2.x I have especially designed for CUPS 2.x, NOT for CUPS 3.x. It serves for using libcupsfilters2 with CUPS 2.x.

In a CUPS 2.x environment a fully up-to-date printing stack is made up of

- CUPS 2.x
- libcupsfilters 2.x
- libppd 2.x
- cups-filters 2.x

In a CUPS 3.x environment a fully up-to-date printing stack is made up of

- CUPS 3.x

Independent of this, for printer drivers packaged as Printer Applications (works with both CUPS 2.x and 3.x):

- PAPPL
- libcupsfilters 2.x

and in addition to retro-fit legacy drivers into Printer Applications:

- libppd 2.x
- pappl-retrofit

The package

- cups-filters 1.x

is not needed any more at all. It gets only security fixes (and perhaps also fixes of some small glitches).

Any actual maintenance and feature additions is done in

- cups-filters 2.x
- libcupsfilters 2.x

So please use these also for CUPS 2.x.

   Till

On 2/19/26 19:53, Thorsten Alteholz wrote:
I don't think there is a bug.
cups2 and cups3 are not compatible. In order to let the user decide when to switch to cups3, there are two different sets of packages. One set for cups2 and one set for cups3. The current package cups-filters in version 1.x does belong to the first set and won't be upgraded to version 2. The filter package for the cups3 set is libcupsfilters! This package is not compatible with cups2 AND cups3 but as it contains a compile switch, it can only work with cups2 OR cups3. So installing this would break printing in Forky.

   Thorsten



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