There is no date set for that yet. Not even roughly. The earliest release where the engine API can be removed is 4.0 but there was no decision on when that version is going to be released and it was not even decided which of the deprecated APIs are going to be removed in 4.0. The functions deprecated in 3.0 will remain supported in 3.0 until 2026-09-07. If there is any further 3.x version designated as LTS, it will give the lifetime of these APIs at least further five years. But it wasn't decided yet whether there will be another 3.x version designated as LTS. Regards, Tomas Mraz, OpenSSL On Fri, 2023-11-17 at 08:25 +0000, Martin Bonner via openssl-users wrote: > At the moment, all the "engine" functions are declared deprecated. > > Has the development team reached a consensus on when they will be > removed? > (I am more interested in a date than a version...) > > -- > Martin Bonner > > > Any email and files/attachments transmitted with it are intended > solely for the use of the individual or entity to whom they are > addressed. If this message has been sent to you in error, you must > not copy, distribute or disclose of the information it contains. > Please notify Entrust immediately and delete the message from your > system. > -- Tomáš Mráz, OpenSSL