Meshery Adapter for Linkerd v0.5.21

What's new ?

• Enhanced OAM error code @asubedy (#310)
• Normalize behavior with other service meshes @Revolyssup (#304)
• Fix failing e2e tests @Revolyssup (#302)

Contributors

Thanks a lot to our contributors for making this release possible:
@Revolyssup, @asubedy, @leecalcote and @warunicorn19