[Qgis-user] How to convert qml style file from version

[Alister Hood]

I wasn't aware that you can work around the backward compatibility problem
by saving style files, but if that works you might find a processing
algorithm to save default style could save you a lot of time.  The
geoproc.com processing algorithms plugin has one, as well as another for
saving and loading multiple styles.
And I posted another algorithm to save default style at:
https://github.com/qgis/QGIS/issues/41471#issuecomment-1588467276

Date: Mon, 8 Jan 2024 15:16:31 +0000
> From: Richard McDonnell <richard.mcdonnell at opw.ie>
> To: Rigola C Jaume INFORMACIO DE BASE <jrigola at ajsabadell.cat>
> Cc: "qgis-user at lists.osgeo.org" <qgis-user at lists.osgeo.org>
> Subject: Re: [Qgis-user] How to convert qml style file from version
>         3.28.6 to 3.16.14
> Message-ID:
>         <
> DB9P189MB20515FD46DE4BE71FB18DBAA996B2 at DB9P189MB2051.EURP189.PROD.OUTLOOK.COM
> >
>
> Content-Type: text/plain; charset="us-ascii"
>
> Hi Jaume,
> I'm making the assumption that your styling is saved in the Project File
> and not as a Style for the Layer itself.
> Might I suggest that you create a default style for each layer, this can
> easily be done by going to the Layer Properties and clicking on the Style
> button on the bottom Left and selecting Save as Default. This will result
> in a default style for the Layer so it doesn't matter what version of QGIS
> you use, or indeed what project you load the layer into, it will use the
> default style. You can also manually do this, by saving the style with the
> same name as the dataset.
>
> The same can be done for all layers, Vector or Raster. It will even do it
> for PostGIS Layers, saving the style in a new table called style in the
> public schema in your Database.
>
> I hope the above helps.
> Kind Regards,
>
> Richard
>
>
>
>
> --
> Richard McDonnell MSc GIS, FME Certified Professional
> FRM Data Management
>
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> --
> MSc GIS, FME Certified Professional
>
> --
> Oifig na nOibreacha Poibl?
> Office of Public Works
>
> Sr?id Jonathan Swift, Baile ?tha Troim, Co na M?, C15 NX36
> Jonathan Swift Street, Trim, Co Meath, C15 NX36
> --
> M +353 87 688 5964 T +353 46 942 2409
> https://https://gov.ie/opw<https://www.opw.ie>
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> From: QGIS-User <qgis-user-bounces at lists.osgeo.org> On Behalf Of Rigola C
> Jaume INFORMACIO DE BASE via QGIS-User
> Sent: 08 January 2024 13:13
> To: 'qgis-user at lists.osgeo.org' <qgis-user at lists.osgeo.org>
> Subject: [Qgis-user] How to convert qml style file from version 3.28.6 to
> 3.16.14
>
> For reasons that are not relevant to this discussion I have two versions
> of QGIS installed on my Desktop (3.16.14-Hannover & 3.28.6-Firenze).
>
> I have realised that when a project is saved at 3.28.6-Firenze version,
> the symbology styles are lost if opened with QGIS 3.16.14-Hannover. I've
> browsed for solutions, and I read that that's an issue since version 3.22,
> but I couldn't find a way to solve it.
>
> Does anyone know how to save the layer stlyles on 3.28.6-Firenze  so they
> can be recovered on 3.16.14-Hannover? (Maybe a version conversor, or a QML
> file conversor)
>
> Many thanks in advance,
>
> Jaume
>
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