- Fix some cases where conversation label sort order is not respected in the admincp
- Improve robustness of upgrade code for very old XF1 versions (~v1.2.x)
- Respect prefix value when using inline mod copy-to-thread option
- Setup to allow Multi Prefix to correctly extend copy-to-thread feature
- Requires MultiPrefix v2.5.1 for full multi-prefix support
- Cleanup some phrases references to XF1 'filtered' tab rather than the XF2 'conversation labels/rules'
- Fix rule handling for conversations which have a deleted conversation starter
- Do not send an inbox_full alert when replying that a user can not start a conversation
- Rework maximum messages error message phrasing
- Check maximum messages limit before creating or inviting with another user into a conversation