[Foundation-l] Slowness, error messages, and being logged out, since around January 15

[SlimVirgin]

A few editors on the English Wikipedia have been noticing a problem since
around January 15 of "connection timed out" messages, very slow performance,
and being logged out.

Preview is getting hard to use because so slow, or failing entirely, and
some edits are not being saved.
Some discussion here --
http://en.wikipedia.org/wiki/Wikipedia:Village_pump_%28technical%29#Slowness_and_timing_out_error_message

Does anyone know whether there's work going on that might be causing it?

Sarah