How to switch OpenSSL version on Mac using Homebrew?

change-openssl-version.md

How to switch OpenSSL version on Mac using Homebrew?

Scenario: you have both OpenSSL 1.0 and 1.1 installed (using Brew) in your OSX system and you want to switch the current active version without removing other versions that already installed. Here is how to do it.

Step 1 - List all OpenSSL versions

$ ls -al /usr/local/Cellar/openssl*

/usr/local/Cellar/openssl:
total 0
drwxr-xr-x  13 zulhilmi  staff  442 Apr 21 04:31 1.0.2t

/usr/local/Cellar/openssl@1.1:
total 0
drwxr-xr-x  13 zulhilmi  staff  442 Apr 21 04:01 1.1.1f
drwxr-xr-x  13 zulhilmi  staff  442 Apr 24 15:41 1.1.1g

Step 2a - Switching to version 1.0

$ brew switch openssl 1.0.2t

Step 2b - Switching to version 1.1

$ brew switch openssl@1.1 1.1.1f

Step 3 - Check new version

$ openssl version
OpenSSL 1.1.1f  31 Mar 2020

Reference:

• https://stackoverflow.com/a/59184347/1577357

Error: Unknown command: switch

Error: Unknown command: switch

This might help Homebrew/discussions#339

Switch is deprecated use brew link openssl@1.1 instead

This worked for me.
I unlinked the current version using $brew unlink openssl@1.0
Then i linked the version i need to use using $brew link openssl@1.1
Finally i checked the openssl version and i got OpenSSL 1.1.1w 11 Sep 2023

It worked.

Thank you for this! And thank you @LizzyOrji123, as well!

Thank you for this! And thank you @LizzyOrji123, as well!

You are welcome