Source: libp11 Version: 0.4.7-2 Severity: normal Currently users would end up with keeping libengine-pkcs11-openssl1.1 installed after a stretch -> buster upgrade.
Providing libengine-pkcs11-openssl1.1 as transitional package depending on libengine-pkcs11-openssl (>= 0.4.7-2) would upgrade them to the now 1.1-using libengine-pkcs11-openssl.