You may wonder: the earliest IDA pro 7.2 installation package can be found in 2019.01, but why does it take 5 months+ to have a working copy?

Well, multiple hurdles have to be conquered before anything feasible went out.

Otherwise, you’ll end up having a non-decryptable installation package, a partial installation without x86 decompiler, or even an invalid license file with outdated license structure.

Three hurdles are waiting to be solved before we have a working copy:

1. installation package password (SHA1 hashed as encryption key),

2. license generation algorithm, and

3. incompatible distros (leak) with different configurations(steganography-equipped).

And this took people 7 months. At least on visible internet surfaces.

Disclaimer: I learned all of these on public, non-membership websites and forums. You can correct the details if you want to, though…