buf mod update failure on older versions 0.52.0 and others

[nischalpatel20]

On buf mod update
Facing the below issue:

Failure: it looks like you have found a bug in buf. Please file an issue at https://github.com/bufbuild/buf/issues/ and provide the command you ran, as well as the following message: unknown digest prefix: b3.

[bufdev]

You're on a beta version of buf, you need to upgrade past v1.0, see https://docs.buf.build/configuration/v1beta1-migration-guide for more details.

[nischalpatel20]

@bufdev i understand the we need to migrate to newer versions but why the older versions suddenly started to fail ?
some issue with them??

[bufdev]

We made a change to the BSR that is not compatible with versions <1.0.