ionic serve ? The Ionic CLI has an update available (3.19.0 => 5.4.16)! Would you like to install it? No Not automatically updating your CLI.

C++
node@38196c580cb3:/src$ yarn ionic serve --no-interactive

yarn ionic v0.24.4
$ "/src/node_modules/.bin/ionic" serve
? The Ionic CLI can automatically check for CLI updates in the background. Would you like to enable this? No
[INFO] Starting app-scripts server: --port 8100 --p 8100 --livereload-port 35729 --r 35729 --address
...
node@38196c580cb3:/src$ yarn ionic version
yarn ionic v0.24.4
$ "/src/node_modules/.bin/ionic" version
3.6.0
Source

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