mod_c2s,mod_s2s: Fire event just before writes Could allow e.g. a XEP-0198 implementation to efficiently send ack requests at optimal times without using timers or nextTick.

net.server: Add a predrain callaback just before writes Allows sneaking in things in the write buffer just before it's sent to the network stack. For example ack requests, compression flushes or other things that make sense to send after stanzas or other things. This ensures any additional trailing data sent is included in the same write, and possibly the same TCP packet. Other methods used such as timers or nextTick might not have the same effect as it depends on scheduling.

mod_s2s: Fire 's2s-ondrain' event, mirroring mod_c2s Signals that any pending outgoing stanzas that were in the write buffer have at least been sent off to the Kernel and maybe even sent out over the network. See 7a703af90c9c for mod_c2s commit

core.storagemanager: Respect archive ids issued by storage drivers in tests Storage drivers may issue their own IDs tho none of the included ones do this atm, but the 3rd party module mod_storage_xmlarchive has its special format.

net.server_epoll: Improve efficiency of opportunistic writes Should prevent further opportunistic write attempts after the kernel buffers are full and stops accepting writes. When combined with `keep_buffers = false` it should stop it from repeatedly recreating the buffer table and concatenating it back into a string when there's a lot to write.

mod_disco: Send XEP-0115 caps in s2s stream features Not currently used for anything, but allowed and could be used in the future and might be used by other servers.

mod_admin_shell: Keep unrestricted environment for session lifetime Makes it so that global values set in the environment are kept longer than within one line, and thus can be used until the session ends. They still don't pollute the global environment, which is an error anyway. Thanks phryk for noticing.

mod_limits: Extend unlimited_jids to s2s sessions (for Ge0rG) This makes unlimited_jids also work for s2s connections, assuming the remote server has been identified.

mod_limits: Factor out function for disabling limits allowing use from shell Also enables reuse for s2s, which we will add next.

mod_bosh: Add todo to use util.session to create session object So that we get single point where shared session properties can be added. But not now. One day. Maybe. Patches welcome.