We have a wrong date of the start of RHEL 7 ELS in convert2rhel. It causes that anyone running convert2rhel till the end of June 2024 will receive a warning suggesting the use of the --els switch even though the ELS period hasn't started yet.

The hardcoded date is at https://github.com/oamg/convert2rhel/pull/1146/files#diff-1e030442df599479d1af356a7eaa61a744973513548846a1a885b8eaca6f489cR57.

ELS_RELEASE_DATE = "2024-06-12"

It should have been 2024-07-01.

Also, the warning message revolves around the use of the --els switch however Insights and Satellite users are not directly exposed to convert2rhel as a command line tool. So the message should be ideally reworded to be applicable to all the environments - Sat, Insights, and CLI.

Nice to have: It might be worth renaming the variable since ELS is a support level thus it's not being released. One can say that the ELS period or phase starts at that date. I'd rename it to ELS_START_DATE for example.