Bash shell stop working on macOS Ventura 13.1 after brew update

[tuffwes]

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What happened?

I've been using oh-my-posh with bash for a long time and I always upgrade without errors. For some reason today after running brew update & upgrade which also upgrades oh-my-posh, I am now getting an error after opening bash prompt.

-bash: eval: line 27: conditional binary operator expected
-bash: eval: line 27: syntax error near MC_SID' -bash: eval: line 27: if [[ -v MC_SID ]];then'

I am using an exported theme .my_theme.omp.json

I am loading from bash as usual in .bash_profile: eval "$(oh-my-posh init bash --config ~/.my-theme.omp.json)"

I tried to go back to a regular theme like: eval "$(oh-my-posh init bash --config ~/jandedobbeleer.omp.json)" I still get the same error. To recap, everything was working before brew upgrade just fine. I didn't change anything.

Theme

hul10.omp.json but exported as a custom my_hul10.omp.json

What OS are you seeing the problem on?

macOS

Which shell are you using?

bash

Log output

-bash: eval: line 27: conditional binary operator expected
-bash: eval: line 27: syntax error near `MC_SID'
-bash: eval: line 27: `    if [[ -v MC_SID ]];then'

[lewis-yeung]

What is your Bash version?

[JanDeDobbeleer]

@tuffwes as @lewis-yeung stated, this is most likely due to an outdated bash version. Apple is known to ship older versions, and I'm on the same device using bash 5.2.12 without issues.