substrate babe: allow skipping over empty epochs

Fixes: #11393.

Instead of assuming that slots are always produced from contiguous epochs, we allow skipping over empty epochs by re-using previously announced randomness and authorities.

Still need to add tests.

Jun 21 '22 23:06 andresilva

Hey, is anyone still working on this? Due to the inactivity this issue has been automatically marked as stale. It will be closed if no further activity occurs. Thank you for your contributions.

Jul 24 '22 13:07 stale[bot]

This pull request has been mentioned on Polkadot Forum. There might be relevant details there:

https://forum.polkadot.network/t/parachain-technical-summit-next-steps/51/1

Aug 27 '22 15:08 Polkadot-Forum

Any update here?

Sep 08 '22 21:09 MOZGIII

Hey, is anyone still working on this? Due to the inactivity this issue has been automatically marked as stale. It will be closed if no further activity occurs. Thank you for your contributions.

Oct 13 '22 23:10 stale[bot]

Not stale

Oct 14 '22 05:10 davxy

My debugger thanks you

Oct 19 '22 08:10 davxy

All review comments have been addressed now.

Oct 24 '22 17:10 andresilva

I would like to have some audit here, to be safe. :P

Oct 28 '22 14:10 bkchr

Hey, is anyone still working on this? Due to the inactivity this issue has been automatically marked as stale. It will be closed if no further activity occurs. Thank you for your contributions.

Dec 21 '22 23:12 stale[bot]

bot merge

Dec 23 '22 23:12 bkchr

Waiting for commit status.

Dec 23 '22 23:12 paritytech-processbot[bot]

Finally, we got this!

I still remember the day that we did the Kusama time warp.

The unexpected epoch change really annoys me in the testnet env.

Jan 06 '23 06:01 aurexav

This pull request has been mentioned on Polkadot Forum. There might be relevant details there:

https://forum.polkadot.network/t/polkadot-release-analysis-v0-9-37/1736/1

Jan 20 '23 07:01 Polkadot-Forum