id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
16378	locmem should use pickle.HIGHEST_PROTOCOL to match memcached et. al.	Paul McMillan	Paul McMillan	Currently the locmem cache backend does not specify a pickle protocol, meaning it defaults to the first version. There are subtle differences between the protocol versions, with some objects pickleable in one version but not another (see #15863). Since HIGHEST_PROTOCOL is what we expect to use in production, we should make sure that all the caching backends behave the same way.	Bug	closed	Core (Cache system)	dev	Release blocker	fixed		kubo@…	Accepted	0	0	0	0	1	0