xml-sitemap for pages in the second language not available after upgrade TYPO3 v10 to v11

[okrgb]

I upgraded a TYPO3 installation from version 10.4.37 to version 11.5.41 and also looked for update options for the installed extensions.
The bootstrap_package extension with version 12.0.10 still worked for TYPO3 version 11.5.41, for the news extension I updated from 10.0.3 to 11.4.2.

Now I have an error when outputting the xml-sitemap for pages in the second language. The sitemap for pages is not rendered via the url .../en/?type=1533906435 - only the sitemap for news is available here.
In TYPO3 version 10.4.37 I had an output in the second language for both sitemaps, for pages .../en/?sitemap=pages&type=1533906435 and for news .../en/?sitemap=news&type=1533906435.

Now my questions are:

1. Could this be related to the fact that I did not update the sitepackage that was created via the sitepackage-builder for TYPO3 version 10?
2. How to update a sitepackage created via the sitepackage-builder from v10 to v11?

[okrgb]

Okay, I found my error in the configuration for tx_seo - the additionalWhere under plugin.tx_seo.config.xmlSitemap.sitemaps.pages.config didn't fit - but I would still like to have answered my question 2.
How long can such a sitepackage be taken with the TYPO3 upgrades from version to version?
And how to update a sitepackage created via the sitepackage-builder?