Blobless Checkout, and How to Opt In and Out

Overview

As of Nov 4th, 2025, the CircleCI default checkout method has changed to blobless. For users who wish to perform full checkouts still, we have ensured that there is a method for you to opt in and out selectively on your builds.

Setting Checkout to Blobless or Full:

To opt out of blobless and ensure that your jobs perform a full checkout, add the following:
steps:
 - checkout:
     method: full
 
To manually set and perform a blobless checkout, add the following step to the desired job:
steps:
 - checkout:
     method: blobless
 

Additional Resources

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