[SPDK] Preparation for SPDK 22.05 release

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Hello all,

The merge window for SPDK 22.05 release will close by May 20th.
Please ensure all patches you believe should be included in the release are=
 merged to 'master' branch by this date.
You can do it by adding a hashtag '22.05' in Gerrit on those patches.

The current set of patches that are tagged and need to be reviewed can be s=
een here:
https://review.spdk.io/gerrit/q/hashtag:%2222.05%22+status:open

On May 20th new branch 'v22.05.x' will be created, and a patch on it will b=
e tagged as release candidate.
Then, by May 27th, a formal release will take place tagging the last patch =
on the branch as SPDK 22.05.

Between release candidate and formal release, only critical fixes shall be =
backported to the 'v22.05.x' branch.
Development can continue without disruptions on 'master' branch.

Thanks,
Tomek

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