new wine in an old bottle

Etymology
From Matthew 9:17 of the King James Bible.

Noun

 * 1)  A significant change introduced to an entrenched system or method.
 * 2)  A new thing passed off as old.
 * 1)  A new thing passed off as old.

Usage notes
See.

Translations

 * German: neuer Wein in alten Schläuchen, junger Wein in alten Schläuchen
 * Hungarian: új bor régi tömlőben,  új bort régi tömlőbe
 * Spanish: vino nuevo en odres viejos