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Having the possibility to have a per major release KB pages


As 10.1 is on its way and has new features of its own and some others got deprecated, its getting a bit "complex" on some KB pages to have documentation for multiple major versions (eg. 5.1, 5.2, 5.3, 5.5, 10.0, 10.1, ...) on one page along with minor versions specifics (when changes got introduced after the first released version).

A simple example (not the best one but its the page i was reading at the moment) : the SELECT statements documentation (https://mariadb.com/kb/en/mariadb/documentation/sql-structure-and-commands/sql-commands/data-manipulation/select/). The first part of the documentation is about the syntax but it only shows the 5.5 GA syntax, features added later must be found manually on the page and syntaxes deprecated after the 5.5 GA will have to be found manually too.

It would be interesting to have the possibility to use a "generate per major release" flag on KB pages that would automatically generate subpages that are major-version specific with a switch between major release pages like on the MySQL documentation.

For example, if a <<product mariadb from=10.0 to=10.0>> macro would be used (only using a major release version number or maybe by adding a "specific" flag to the macro to avoid mistakes), there would automatically be a 5.5 and a 10.0, 10.1 subpages (specified, previous and next releases) created where the content of the tag would only be shown on the 10.0 page (and on the "generic" page that shows every release infos such as its done at the moment).

With that kind of automatic generation, it would be simpler to keep up to date documentation for every major release without having to create a specific page per major release or to display multiple <<product>> macros on one page while keeping it simple to manage (especially as there are also the translations to keep up).

Having the possibility to set a from/to product version for a whole KB page could also be interesting to keep the browsing of the KB pages lighter if the user selected a specific MariaDB release, it could also be used to put automatically the info on top of the KB page in a clean way (example of how it is done actually : https://mariadb.com/kb/en/mariadb/documentation/managing-mariadb/optimization-and-tuning/query-optimizations/aborting-statements-that-exceed-a-certain-time-to-execute/) and it could be of use for automatically generated documentation from the KB pages.

These ideas are not perfect and i dont know if it would be simple to implement these on the KB code but the need for a solution for the problem will only keep growing.

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