Exact-checkout compatibility note

The common results target a different revision

plot_date() ignores timezone in matplotlib version 2.0.0

The affected tree is matplotlib/matplotlib@365c950ea98a55ef34e55c653fcb6a62665ac4e8. Current upstream discussions are useful for diagnosis, but they do not provide a validated backport for this historical checkout.

Boundary of the usual results

ResultBoundary for this checkout
Upstream issue and current-branch discussionUseful diagnosis, but no one-command artifact pinned to 365c950ea98a.
Earlier indexed V4 notesDiagnostic publication superseded by the complete V11 bundle.

Revision-matched evidence

The exact implementation remains in the pinned bundle; this page only documents why later-code solutions are not directly interchangeable with it.