Krita 3 and 4 compatibility issues

Krita 3 and 4 compatibility issues

[Leo Famulari]

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I updated Krita to 4.0.0, but later I noticed some issues with the
transition, notably that the Krita 3 and 4 file formats are not totally
compatible and may not work consistently between versions:

"Krita 4 has a new file format for vector and text objects. Krita 4
tries to import Krita 3 and older files. Krita 3 and older will not be
able to read vector and text objects saved by Krita 4. Because the new
file format and the old file format are not 100% compatible, images with
vector and text objects might look different in Krita 4. We recommend:

    To always keep a backup of your Krita 3 files before working on them
    in Krita4!
    In some cases, to convert your vector and text layers to raster
    layers before working on your old files in Krita 4!"
    
https://krita.org/en/krita-4-0-release-notes/

Should we do anything about this?

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Re: Krita 3 and 4 compatibility issues

[Thorsten Wilms]

On 22.03.2018 18:44, Leo Famulari wrote:
> I updated Krita to 4.0.0, but later I noticed some issues with the
> transition, notably that the Krita 3 and 4 file formats are not totally
> compatible and may not work consistently between versions:

> Should we do anything about this?


In this specific case, you may bet on a very low number of users of 
Krita via guix, all of whom are likely to be enthusiastic enough to get 
such news right from the source.

A short note regarding the option to keep both Krita 3 and 4 accessible 
would be nice in this and any future similar case. The likelihood of not 
working in the same profile, potential configuration clashes, the option 
to use different profiles or guix environment, as you mentioned on #guix.

In general, though, it points to a need of bringing such messages to 
users attention. On first startup of the new application version would 
be a bit on the disruptive side and without a unified desktop 
environment, one has to wonder how it could be done technically, anyway.

There should be a clear answer to a user's question of what the last 
update brought them, though.


-- 
Thorsten Wilms

thorwil's design for free software:
http://thorwil.wordpress.com/

Re: Krita 3 and 4 compatibility issues

[ng0]

Thorsten Wilms transcribed 1.2K bytes:
> On 22.03.2018 18:44, Leo Famulari wrote:
> > I updated Krita to 4.0.0, but later I noticed some issues with the
> > transition, notably that the Krita 3 and 4 file formats are not totally
> > compatible and may not work consistently between versions:
> 
> > Should we do anything about this?
> 
> 
> In this specific case, you may bet on a very low number of users of Krita
> via guix, all of whom are likely to be enthusiastic enough to get such news
> right from the source.
> 
> A short note regarding the option to keep both Krita 3 and 4 accessible
> would be nice in this and any future similar case. The likelihood of not
> working in the same profile, potential configuration clashes, the option to
> use different profiles or guix environment, as you mentioned on #guix.

I agree, in this case having Krita 3 and 4 available helps. We could default
to 4 but keep 3 available for downgrading to it.

> In general, though, it points to a need of bringing such messages to users
> attention. On first startup of the new application version would be a bit on
> the disruptive side and without a unified desktop environment, one has to
> wonder how it could be done technically, anyway.
> 
> There should be a clear answer to a user's question of what the last update
> brought them, though.
> 
> 
> -- 
> Thorsten Wilms
> 
> thorwil's design for free software:
> http://thorwil.wordpress.com/
> 

-- 
A88C8ADD129828D7EAC02E52E22F9BBFEE348588
https://n0.is

Re: Krita 3 and 4 compatibility issues

[Leo Famulari]

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On Fri, Mar 23, 2018 at 03:06:52PM +0000, ng0 wrote:
> Thorsten Wilms transcribed 1.2K bytes:
> > A short note regarding the option to keep both Krita 3 and 4 accessible
> > would be nice in this and any future similar case. The likelihood of not
> > working in the same profile, potential configuration clashes, the option to
> > use different profiles or guix environment, as you mentioned on #guix.
> 
> I agree, in this case having Krita 3 and 4 available helps. We could default
> to 4 but keep 3 available for downgrading to it.

I think we could keep both Krita 3 and 4 around for a while, removing
the older one in a few months. It's easy with a package like this:

(define-public krita-3
  (package
    (inherit krita)
    (name "krita")
    (version "3.3.3")
    (source (origin
              (inherit (package-source krita))
              (uri (string-append
                    "mirror://kde/stable/krita/"
                    (version-prefix version 3)
                    "/" name "-" version ".tar.gz"))
              (sha256
               (base32
                "0pc6hnakkqy81x5b5ncivaps6hqv43i50sjwgi3i3cz9j8rlxh5y"))))))

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