evgeniy-trebin/brew_elasticsearch.sh

Yup I manually got it from the Elasticsearch page.

I tried to install an older version from command:
apple$ brew install elastic/tap/elasticsearch-full@7.11.1

However it returns an error:
Warning: No available formula or cask with the name "elastic/tap/elasticsearch-full@7.11.1". Did you mean elastic/tap/elasticsearch-full?
==> Searching for similarly named formulae...
Error: No similarly named formulae found.
==> Searching for a previously deleted formula (in the last month)...
Error: No previously deleted formula found.

If I do:
brew search elasticsearch

It gives me existing versions in brew:
elastic/tap/elasticsearch-full ✔ elasticsearch@6
elasticsearch

Any solution on how to install older version of elasticsearch on MAC? Can we put an older version of Elasticsearch in brew through some package?

From the experiences of our company( big credit to our new college! ), the following should work:

1. Update brew

  brew update

2. Modify formula

  cd /usr/local/Homebrew/Library/Taps/homebrew/homebrew-core/Formula
  git checkout 5874ac8c8fab69f8a714d643581e489bcb176d92 elasticsearch@5.6.rb

3. Install elasticsearch@5.6

  brew install openjdk@8
  brew install elasticsearch@5.6

If you see the following error

Error: elasticsearch@5.6: Unsupported special dependency :java

Remove or comment this line( around line 15) from elasticsearch@5.6.rb

depends_on :java => "1.8+"

4. Check version

  brew info elasticsearch@5.6

5. Pin version

  brew pin elasticsearch@5.6

This worked well for me, thanks @xofred!