Looking for old 2.1.0 version of this library

[ZeTofZone]

Hi everyone.

I'm looking for an old version of this library (v2.1.x)

EDIT : found in this fork : https://github.com/ekapujiw2002/espsoftwareserial/tags
But doesn't work anymore (like v1.0). I have to look elsewhere for my problem.

I have a sketch made in 2016/2017 which was working well with this version, but with newer version the ESP crash after a certain delay (usually after 40-50 minutes, but seems to depend on which version I try) when accessing to SoftwareSerial->write(something);
Once again, this is not happening with old version.

I found and tried v1.0 but doesn't work at all (no data)
I also found v3.2.3 but the problem is already present.

Thanks in advance if someone has old version to share.