I'm actually only considering support for 8x+ but I think the default codec, used by most users, should allow for 7x indexes to be read by 9x. If we can do this for 8x+ i.e. indexes generated with 8x being supported by 10 would be a good starting point as well.
On Thu, Jun 27, 2024 at 1:23 PM Ishan Chattopadhyaya < ichattopadhy...@gmail.com> wrote: > +1, we should definitely give this a try. Do you have any particular > version combinations in mind that don't work for users now? On my end, I > see Solr 8x users who would love to use Solr 9x, but with Lucene 8x indexes > (previously upgraded from Lucene 7x). > > On Thu, 27 Jun 2024 at 23:17, Anshum Gupta <ans...@anshumgupta.net> wrote: > >> Hi everyone, >> >> At Buzzwords and Community Over Code this last month, the topic of >> supporting indexes for over 2 versions came up. >> >> While there are times that require breaking compatibility, I think it >> would be really useful to support the indexes especially if you use a codec >> that doesn't have a breaking change. This would be extremely useful for >> users and would allow them to upgrade without the need to plan for complete >> reindexing. >> >> What do other folks think? >> >> -- >> Anshum Gupta >> > -- Anshum Gupta
