Hello.
I have RocketChat 2.4.6 and I need to scale it to a 4.x version to make use of new features.
But I can’t use the instance that is in use by the company.
So… how can I install version 2.4.6? I couldn’t find any documentation that could help me and I don’t know if it’s possible to follow the current version’s documentation for installing the old version; the attempts I’ve made follow the requirements on the version release page on GitHub (Release 2.4.6 · RocketChat/Rocket.Chat · GitHub).
Can anyone help me?
Thanks 
Hi! Welcome to our forums
We have all older versions in our docker (our suggested deployment method) repo:
https://hub.docker.com/r/rocketchat/rocket.chat/tags?page=1&name=2.4.6
You can also use our own docker repo, for instance:
registry.rocket.chat/rocketchat/rocket.chat:2.4.6
Now you can dump your production data, restore in a 2.4.6 staging deployment and start your tests into upgrading to 4.6.3, our latest released version now.
Also, consider joining our community support channel to help others and also get help 
Friend, your answer helped me a lot.
I’m gradually making the updates in the test phase and so far everything has been working very well.
Thank you very much!